diff --git a/compiler/rustc_const_eval/src/const_eval/dummy_machine.rs b/compiler/rustc_const_eval/src/const_eval/dummy_machine.rs
index afc60d33647..94c9f056b30 100644
--- a/compiler/rustc_const_eval/src/const_eval/dummy_machine.rs
+++ b/compiler/rustc_const_eval/src/const_eval/dummy_machine.rs
@@ -1,9 +1,12 @@
-use crate::interpret::{self, HasStaticRootDefId, ImmTy, Immediate, InterpCx, PointerArithmetic};
+use crate::interpret::{
+    self, throw_machine_stop, HasStaticRootDefId, ImmTy, Immediate, InterpCx, PointerArithmetic,
+};
 use rustc_middle::mir::interpret::{AllocId, ConstAllocation, InterpResult};
 use rustc_middle::mir::*;
 use rustc_middle::query::TyCtxtAt;
 use rustc_middle::ty;
 use rustc_middle::ty::layout::TyAndLayout;
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::DefId;
 
 /// Macro for machine-specific `InterpError` without allocation.
diff --git a/compiler/rustc_const_eval/src/const_eval/error.rs b/compiler/rustc_const_eval/src/const_eval/error.rs
index 2c9eb393e4a..08c9609eacf 100644
--- a/compiler/rustc_const_eval/src/const_eval/error.rs
+++ b/compiler/rustc_const_eval/src/const_eval/error.rs
@@ -11,6 +11,7 @@ use rustc_span::{Span, Symbol};
 
 use super::CompileTimeInterpreter;
 use crate::errors::{self, FrameNote, ReportErrorExt};
+use crate::interpret::{err_inval, err_machine_stop};
 use crate::interpret::{ErrorHandled, Frame, InterpError, InterpErrorInfo, MachineStopType};
 
 /// The CTFE machine has some custom error kinds.
diff --git a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs
index d9f329c8b0e..6a9a21bbd8e 100644
--- a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs
+++ b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs
@@ -3,6 +3,7 @@ use std::sync::atomic::Ordering::Relaxed;
 use either::{Left, Right};
 
 use rustc_hir::def::DefKind;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::{AllocId, ErrorHandled, InterpErrorInfo};
 use rustc_middle::mir::{self, ConstAlloc, ConstValue};
 use rustc_middle::query::TyCtxtAt;
@@ -24,7 +25,7 @@ use crate::interpret::{
     InternKind, InterpCx, InterpError, InterpResult, MPlaceTy, MemoryKind, OpTy, RefTracking,
     StackPopCleanup,
 };
-use crate::interpret::{eval_nullary_intrinsic, InternResult};
+use crate::interpret::{eval_nullary_intrinsic, throw_exhaust, InternResult};
 use crate::CTRL_C_RECEIVED;
 
 // Returns a pointer to where the result lives
diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs
index 6e6fa70107b..836e548ae2b 100644
--- a/compiler/rustc_const_eval/src/const_eval/machine.rs
+++ b/compiler/rustc_const_eval/src/const_eval/machine.rs
@@ -10,6 +10,7 @@ use rustc_hir::def::DefKind;
 use rustc_hir::def_id::DefId;
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::LangItem;
+use rustc_middle::bug;
 use rustc_middle::mir;
 use rustc_middle::mir::AssertMessage;
 use rustc_middle::query::TyCtxtAt;
@@ -24,8 +25,9 @@ use rustc_target::spec::abi::Abi as CallAbi;
 use crate::errors::{LongRunning, LongRunningWarn};
 use crate::fluent_generated as fluent;
 use crate::interpret::{
-    self, compile_time_machine, AllocId, AllocRange, ConstAllocation, CtfeProvenance, FnArg, FnVal,
-    Frame, ImmTy, InterpCx, InterpResult, MPlaceTy, OpTy, Pointer, PointerArithmetic, Scalar,
+    self, compile_time_machine, err_ub, throw_exhaust, throw_inval, throw_ub_custom,
+    throw_unsup_format, AllocId, AllocRange, ConstAllocation, CtfeProvenance, FnArg, FnVal, Frame,
+    ImmTy, InterpCx, InterpResult, MPlaceTy, OpTy, Pointer, PointerArithmetic, Scalar,
 };
 
 use super::error::*;
diff --git a/compiler/rustc_const_eval/src/const_eval/mod.rs b/compiler/rustc_const_eval/src/const_eval/mod.rs
index 8efc67bcb0c..a5c8c0bb82a 100644
--- a/compiler/rustc_const_eval/src/const_eval/mod.rs
+++ b/compiler/rustc_const_eval/src/const_eval/mod.rs
@@ -1,5 +1,6 @@
 // Not in interpret to make sure we do not use private implementation details
 
+use rustc_middle::bug;
 use rustc_middle::mir;
 use rustc_middle::mir::interpret::InterpErrorInfo;
 use rustc_middle::query::{Key, TyCtxtAt};
diff --git a/compiler/rustc_const_eval/src/const_eval/valtrees.rs b/compiler/rustc_const_eval/src/const_eval/valtrees.rs
index dcfce4e35e0..fbf2ca5ab0a 100644
--- a/compiler/rustc_const_eval/src/const_eval/valtrees.rs
+++ b/compiler/rustc_const_eval/src/const_eval/valtrees.rs
@@ -1,4 +1,5 @@
 use rustc_data_structures::stack::ensure_sufficient_stack;
+use rustc_middle::bug;
 use rustc_middle::mir;
 use rustc_middle::mir::interpret::{EvalToValTreeResult, GlobalId};
 use rustc_middle::ty::layout::{LayoutCx, LayoutOf, TyAndLayout};
diff --git a/compiler/rustc_const_eval/src/interpret/cast.rs b/compiler/rustc_const_eval/src/interpret/cast.rs
index 76e59ea9055..799e12f9ac9 100644
--- a/compiler/rustc_const_eval/src/interpret/cast.rs
+++ b/compiler/rustc_const_eval/src/interpret/cast.rs
@@ -7,11 +7,13 @@ use rustc_middle::mir::CastKind;
 use rustc_middle::ty::adjustment::PointerCoercion;
 use rustc_middle::ty::layout::{IntegerExt, LayoutOf, TyAndLayout};
 use rustc_middle::ty::{self, FloatTy, Ty};
+use rustc_middle::{bug, span_bug};
 use rustc_target::abi::Integer;
 use rustc_type_ir::TyKind::*;
 
 use super::{
-    util::ensure_monomorphic_enough, FnVal, ImmTy, Immediate, InterpCx, Machine, OpTy, PlaceTy,
+    err_inval, throw_ub, throw_ub_custom, util::ensure_monomorphic_enough, FnVal, ImmTy, Immediate,
+    InterpCx, Machine, OpTy, PlaceTy,
 };
 
 use crate::fluent_generated as fluent;
diff --git a/compiler/rustc_const_eval/src/interpret/discriminant.rs b/compiler/rustc_const_eval/src/interpret/discriminant.rs
index caacc6f57d3..8ddc741de23 100644
--- a/compiler/rustc_const_eval/src/interpret/discriminant.rs
+++ b/compiler/rustc_const_eval/src/interpret/discriminant.rs
@@ -1,12 +1,15 @@
 //! Functions for reading and writing discriminants of multi-variant layouts (enums and coroutines).
 
 use rustc_middle::mir;
+use rustc_middle::span_bug;
 use rustc_middle::ty::layout::{LayoutOf, PrimitiveExt};
 use rustc_middle::ty::{self, ScalarInt, Ty};
 use rustc_target::abi::{self, TagEncoding};
 use rustc_target::abi::{VariantIdx, Variants};
 
-use super::{ImmTy, InterpCx, InterpResult, Machine, Readable, Scalar, Writeable};
+use super::{
+    err_ub, throw_ub, ImmTy, InterpCx, InterpResult, Machine, Readable, Scalar, Writeable,
+};
 
 impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
     /// Writes the discriminant of the given variant.
diff --git a/compiler/rustc_const_eval/src/interpret/eval_context.rs b/compiler/rustc_const_eval/src/interpret/eval_context.rs
index 126d64329f8..344bb7cd98b 100644
--- a/compiler/rustc_const_eval/src/interpret/eval_context.rs
+++ b/compiler/rustc_const_eval/src/interpret/eval_context.rs
@@ -17,15 +17,17 @@ use rustc_middle::ty::layout::{
     TyAndLayout,
 };
 use rustc_middle::ty::{self, GenericArgsRef, ParamEnv, Ty, TyCtxt, TypeFoldable, Variance};
+use rustc_middle::{bug, span_bug};
 use rustc_mir_dataflow::storage::always_storage_live_locals;
 use rustc_session::Limit;
 use rustc_span::Span;
 use rustc_target::abi::{call::FnAbi, Align, HasDataLayout, Size, TargetDataLayout};
 
 use super::{
-    GlobalId, Immediate, InterpErrorInfo, InterpResult, MPlaceTy, Machine, MemPlace, MemPlaceMeta,
-    Memory, MemoryKind, OpTy, Operand, Place, PlaceTy, Pointer, PointerArithmetic, Projectable,
-    Provenance, Scalar, StackPopJump,
+    err_inval, throw_inval, throw_ub, throw_ub_custom, throw_unsup, GlobalId, Immediate,
+    InterpErrorInfo, InterpResult, MPlaceTy, Machine, MemPlace, MemPlaceMeta, Memory, MemoryKind,
+    OpTy, Operand, Place, PlaceTy, Pointer, PointerArithmetic, Projectable, Provenance, Scalar,
+    StackPopJump,
 };
 use crate::errors;
 use crate::util;
diff --git a/compiler/rustc_const_eval/src/interpret/intern.rs b/compiler/rustc_const_eval/src/interpret/intern.rs
index d4168273f29..3565b4fb516 100644
--- a/compiler/rustc_const_eval/src/interpret/intern.rs
+++ b/compiler/rustc_const_eval/src/interpret/intern.rs
@@ -24,7 +24,7 @@ use rustc_middle::ty::layout::TyAndLayout;
 use rustc_span::def_id::LocalDefId;
 use rustc_span::sym;
 
-use super::{AllocId, Allocation, InterpCx, MPlaceTy, Machine, MemoryKind, PlaceTy};
+use super::{err_ub, AllocId, Allocation, InterpCx, MPlaceTy, Machine, MemoryKind, PlaceTy};
 use crate::const_eval;
 use crate::errors::NestedStaticInThreadLocal;
 
diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
index 52c31629d54..dce4d56f7e0 100644
--- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs
+++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
@@ -8,6 +8,7 @@ use rustc_middle::ty::layout::{LayoutOf as _, ValidityRequirement};
 use rustc_middle::ty::GenericArgsRef;
 use rustc_middle::ty::{Ty, TyCtxt};
 use rustc_middle::{
+    bug,
     mir::{self, BinOp, ConstValue, NonDivergingIntrinsic},
     ty::layout::TyAndLayout,
 };
@@ -15,9 +16,10 @@ use rustc_span::symbol::{sym, Symbol};
 use rustc_target::abi::Size;
 
 use super::{
-    memory::MemoryKind, util::ensure_monomorphic_enough, Allocation, CheckInAllocMsg,
-    ConstAllocation, GlobalId, ImmTy, InterpCx, InterpResult, MPlaceTy, Machine, OpTy, Pointer,
-    PointerArithmetic, Scalar,
+    err_inval, err_ub_custom, err_unsup_format, memory::MemoryKind, throw_inval, throw_ub_custom,
+    throw_ub_format, util::ensure_monomorphic_enough, Allocation, CheckInAllocMsg, ConstAllocation,
+    GlobalId, ImmTy, InterpCx, InterpResult, MPlaceTy, Machine, OpTy, Pointer, PointerArithmetic,
+    Scalar,
 };
 
 use crate::fluent_generated as fluent;
diff --git a/compiler/rustc_const_eval/src/interpret/machine.rs b/compiler/rustc_const_eval/src/interpret/machine.rs
index 8405d0746df..2eaebc1924b 100644
--- a/compiler/rustc_const_eval/src/interpret/machine.rs
+++ b/compiler/rustc_const_eval/src/interpret/machine.rs
@@ -18,9 +18,9 @@ use rustc_target::abi::{Align, Size};
 use rustc_target::spec::abi::Abi as CallAbi;
 
 use super::{
-    AllocBytes, AllocId, AllocKind, AllocRange, Allocation, ConstAllocation, CtfeProvenance, FnArg,
-    Frame, ImmTy, InterpCx, InterpResult, MPlaceTy, MemoryKind, Misalignment, OpTy, PlaceTy,
-    Pointer, Provenance,
+    throw_unsup, throw_unsup_format, AllocBytes, AllocId, AllocKind, AllocRange, Allocation,
+    ConstAllocation, CtfeProvenance, FnArg, Frame, ImmTy, InterpCx, InterpResult, MPlaceTy,
+    MemoryKind, Misalignment, OpTy, PlaceTy, Pointer, Provenance,
 };
 
 /// Data returned by Machine::stack_pop,
diff --git a/compiler/rustc_const_eval/src/interpret/memory.rs b/compiler/rustc_const_eval/src/interpret/memory.rs
index 594e3b3212f..350fd480fba 100644
--- a/compiler/rustc_const_eval/src/interpret/memory.rs
+++ b/compiler/rustc_const_eval/src/interpret/memory.rs
@@ -16,6 +16,7 @@ use std::ptr;
 use rustc_ast::Mutability;
 use rustc_data_structures::fx::{FxHashSet, FxIndexMap};
 use rustc_hir::def::DefKind;
+use rustc_middle::bug;
 use rustc_middle::mir::display_allocation;
 use rustc_middle::ty::{self, Instance, ParamEnv, Ty, TyCtxt};
 use rustc_target::abi::{Align, HasDataLayout, Size};
@@ -23,9 +24,10 @@ use rustc_target::abi::{Align, HasDataLayout, Size};
 use crate::fluent_generated as fluent;
 
 use super::{
-    alloc_range, AllocBytes, AllocId, AllocMap, AllocRange, Allocation, CheckAlignMsg,
-    CheckInAllocMsg, CtfeProvenance, GlobalAlloc, InterpCx, InterpResult, Machine, MayLeak,
-    Misalignment, Pointer, PointerArithmetic, Provenance, Scalar,
+    alloc_range, err_ub, err_ub_custom, throw_ub, throw_ub_custom, throw_unsup, throw_unsup_format,
+    AllocBytes, AllocId, AllocMap, AllocRange, Allocation, CheckAlignMsg, CheckInAllocMsg,
+    CtfeProvenance, GlobalAlloc, InterpCx, InterpResult, Machine, MayLeak, Misalignment, Pointer,
+    PointerArithmetic, Provenance, Scalar,
 };
 
 #[derive(Debug, PartialEq, Copy, Clone)]
diff --git a/compiler/rustc_const_eval/src/interpret/operand.rs b/compiler/rustc_const_eval/src/interpret/operand.rs
index 718c91b2f76..bad9732f483 100644
--- a/compiler/rustc_const_eval/src/interpret/operand.rs
+++ b/compiler/rustc_const_eval/src/interpret/operand.rs
@@ -10,13 +10,14 @@ use rustc_middle::mir::interpret::ScalarSizeMismatch;
 use rustc_middle::ty::layout::{LayoutOf, TyAndLayout};
 use rustc_middle::ty::print::{FmtPrinter, PrettyPrinter};
 use rustc_middle::ty::{ConstInt, ScalarInt, Ty, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_middle::{mir, ty};
 use rustc_target::abi::{self, Abi, HasDataLayout, Size};
 
 use super::{
-    alloc_range, from_known_layout, mir_assign_valid_types, CtfeProvenance, InterpCx, InterpResult,
-    MPlaceTy, Machine, MemPlace, MemPlaceMeta, OffsetMode, PlaceTy, Pointer, Projectable,
-    Provenance, Scalar,
+    alloc_range, err_ub, from_known_layout, mir_assign_valid_types, throw_ub, CtfeProvenance,
+    InterpCx, InterpResult, MPlaceTy, Machine, MemPlace, MemPlaceMeta, OffsetMode, PlaceTy,
+    Pointer, Projectable, Provenance, Scalar,
 };
 
 /// An `Immediate` represents a single immediate self-contained Rust value.
diff --git a/compiler/rustc_const_eval/src/interpret/operator.rs b/compiler/rustc_const_eval/src/interpret/operator.rs
index 2d5dbbd58b3..5f59e3d887e 100644
--- a/compiler/rustc_const_eval/src/interpret/operator.rs
+++ b/compiler/rustc_const_eval/src/interpret/operator.rs
@@ -3,10 +3,11 @@ use rustc_middle::mir;
 use rustc_middle::mir::interpret::{InterpResult, Scalar};
 use rustc_middle::ty::layout::{LayoutOf, TyAndLayout};
 use rustc_middle::ty::{self, FloatTy, ScalarInt, Ty};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::sym;
 use rustc_target::abi::Abi;
 
-use super::{ImmTy, Immediate, InterpCx, Machine, PlaceTy};
+use super::{err_ub, throw_ub, throw_ub_custom, ImmTy, Immediate, InterpCx, Machine, PlaceTy};
 
 use crate::fluent_generated as fluent;
 
diff --git a/compiler/rustc_const_eval/src/interpret/place.rs b/compiler/rustc_const_eval/src/interpret/place.rs
index 809aca18990..9ced825853b 100644
--- a/compiler/rustc_const_eval/src/interpret/place.rs
+++ b/compiler/rustc_const_eval/src/interpret/place.rs
@@ -11,12 +11,14 @@ use rustc_middle::mir;
 use rustc_middle::ty;
 use rustc_middle::ty::layout::{LayoutOf, TyAndLayout};
 use rustc_middle::ty::Ty;
+use rustc_middle::{bug, span_bug};
 use rustc_target::abi::{Abi, Align, HasDataLayout, Size};
 
 use super::{
-    alloc_range, mir_assign_valid_types, AllocRef, AllocRefMut, CheckAlignMsg, CtfeProvenance,
-    ImmTy, Immediate, InterpCx, InterpResult, Machine, MemoryKind, Misalignment, OffsetMode, OpTy,
-    Operand, Pointer, PointerArithmetic, Projectable, Provenance, Readable, Scalar,
+    alloc_range, mir_assign_valid_types, throw_ub, AllocRef, AllocRefMut, CheckAlignMsg,
+    CtfeProvenance, ImmTy, Immediate, InterpCx, InterpResult, Machine, MemoryKind, Misalignment,
+    OffsetMode, OpTy, Operand, Pointer, PointerArithmetic, Projectable, Provenance, Readable,
+    Scalar,
 };
 
 #[derive(Copy, Clone, Hash, PartialEq, Eq, Debug)]
diff --git a/compiler/rustc_const_eval/src/interpret/projection.rs b/compiler/rustc_const_eval/src/interpret/projection.rs
index 5ff78f7b8c9..0a2fedb4840 100644
--- a/compiler/rustc_const_eval/src/interpret/projection.rs
+++ b/compiler/rustc_const_eval/src/interpret/projection.rs
@@ -14,10 +14,14 @@ use rustc_middle::mir;
 use rustc_middle::ty;
 use rustc_middle::ty::layout::{LayoutOf, TyAndLayout};
 use rustc_middle::ty::Ty;
+use rustc_middle::{bug, span_bug};
 use rustc_target::abi::Size;
 use rustc_target::abi::{self, VariantIdx};
 
-use super::{InterpCx, InterpResult, MPlaceTy, Machine, MemPlaceMeta, OpTy, Provenance, Scalar};
+use super::{
+    throw_ub, throw_unsup_format, InterpCx, InterpResult, MPlaceTy, Machine, MemPlaceMeta, OpTy,
+    Provenance, Scalar,
+};
 
 /// Describes the constraints placed on offset-projections.
 #[derive(Copy, Clone, Debug)]
diff --git a/compiler/rustc_const_eval/src/interpret/step.rs b/compiler/rustc_const_eval/src/interpret/step.rs
index b29034e991e..ee415c380de 100644
--- a/compiler/rustc_const_eval/src/interpret/step.rs
+++ b/compiler/rustc_const_eval/src/interpret/step.rs
@@ -7,6 +7,7 @@ use either::Either;
 use rustc_index::IndexSlice;
 use rustc_middle::mir;
 use rustc_middle::ty::layout::LayoutOf;
+use rustc_middle::{bug, span_bug};
 use rustc_target::abi::{FieldIdx, FIRST_VARIANT};
 
 use super::{
diff --git a/compiler/rustc_const_eval/src/interpret/terminator.rs b/compiler/rustc_const_eval/src/interpret/terminator.rs
index b474003087b..b82c1857858 100644
--- a/compiler/rustc_const_eval/src/interpret/terminator.rs
+++ b/compiler/rustc_const_eval/src/interpret/terminator.rs
@@ -2,6 +2,7 @@ use std::borrow::Cow;
 
 use either::Either;
 
+use rustc_middle::span_bug;
 use rustc_middle::{
     mir,
     ty::{
@@ -19,8 +20,9 @@ use rustc_target::abi::{
 use rustc_target::spec::abi::Abi;
 
 use super::{
-    CtfeProvenance, FnVal, ImmTy, InterpCx, InterpResult, MPlaceTy, Machine, OpTy, PlaceTy,
-    Projectable, Provenance, Scalar, StackPopCleanup,
+    throw_ub, throw_ub_custom, throw_unsup_format, CtfeProvenance, FnVal, ImmTy, InterpCx,
+    InterpResult, MPlaceTy, Machine, OpTy, PlaceTy, Projectable, Provenance, Scalar,
+    StackPopCleanup,
 };
 use crate::fluent_generated as fluent;
 
diff --git a/compiler/rustc_const_eval/src/interpret/util.rs b/compiler/rustc_const_eval/src/interpret/util.rs
index c83ef14c03f..e304d1e1cc5 100644
--- a/compiler/rustc_const_eval/src/interpret/util.rs
+++ b/compiler/rustc_const_eval/src/interpret/util.rs
@@ -1,5 +1,4 @@
 use crate::const_eval::{CompileTimeEvalContext, CompileTimeInterpreter, InterpretationResult};
-use crate::interpret::{MemPlaceMeta, MemoryKind};
 use rustc_hir::def_id::LocalDefId;
 use rustc_middle::mir;
 use rustc_middle::mir::interpret::{Allocation, InterpResult, Pointer};
@@ -9,7 +8,7 @@ use rustc_middle::ty::{
 };
 use std::ops::ControlFlow;
 
-use super::{InterpCx, MPlaceTy};
+use super::{throw_inval, InterpCx, MPlaceTy, MemPlaceMeta, MemoryKind};
 
 /// Checks whether a type contains generic parameters which must be instantiated.
 ///
diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs
index 14566719ccd..2bd4d9dc07a 100644
--- a/compiler/rustc_const_eval/src/interpret/validity.rs
+++ b/compiler/rustc_const_eval/src/interpret/validity.rs
@@ -13,6 +13,7 @@ use hir::def::DefKind;
 use rustc_ast::Mutability;
 use rustc_data_structures::fx::FxHashSet;
 use rustc_hir as hir;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::{
     ExpectedKind, InterpError, InvalidMetaKind, Misalignment, PointerKind, Provenance,
     ValidationErrorInfo, ValidationErrorKind, ValidationErrorKind::*,
@@ -27,9 +28,9 @@ use rustc_target::abi::{
 use std::hash::Hash;
 
 use super::{
-    format_interp_error, machine::AllocMap, AllocId, CheckInAllocMsg, GlobalAlloc, ImmTy,
-    Immediate, InterpCx, InterpResult, MPlaceTy, Machine, MemPlaceMeta, OpTy, Pointer, Projectable,
-    Scalar, ValueVisitor,
+    err_ub, format_interp_error, machine::AllocMap, throw_ub, AllocId, CheckInAllocMsg,
+    GlobalAlloc, ImmTy, Immediate, InterpCx, InterpResult, MPlaceTy, Machine, MemPlaceMeta, OpTy,
+    Pointer, Projectable, Scalar, ValueVisitor,
 };
 
 // for the validation errors
diff --git a/compiler/rustc_const_eval/src/interpret/visitor.rs b/compiler/rustc_const_eval/src/interpret/visitor.rs
index 84557b8e2d6..59bcc5174cb 100644
--- a/compiler/rustc_const_eval/src/interpret/visitor.rs
+++ b/compiler/rustc_const_eval/src/interpret/visitor.rs
@@ -9,7 +9,7 @@ use rustc_target::abi::{FieldsShape, VariantIdx, Variants};
 
 use std::num::NonZero;
 
-use super::{InterpCx, MPlaceTy, Machine, Projectable};
+use super::{throw_inval, InterpCx, MPlaceTy, Machine, Projectable};
 
 /// How to traverse a value and what to do when we are at the leaves.
 pub trait ValueVisitor<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>>: Sized {
diff --git a/compiler/rustc_const_eval/src/lib.rs b/compiler/rustc_const_eval/src/lib.rs
index d27d42737cd..a525b838afa 100644
--- a/compiler/rustc_const_eval/src/lib.rs
+++ b/compiler/rustc_const_eval/src/lib.rs
@@ -22,8 +22,6 @@ Rust MIR: a lowered representation of Rust.
 
 #[macro_use]
 extern crate tracing;
-#[macro_use]
-extern crate rustc_middle;
 
 pub mod const_eval;
 mod errors;
diff --git a/compiler/rustc_const_eval/src/transform/check_consts/check.rs b/compiler/rustc_const_eval/src/transform/check_consts/check.rs
index 46cc9f69373..5edf5bb39dd 100644
--- a/compiler/rustc_const_eval/src/transform/check_consts/check.rs
+++ b/compiler/rustc_const_eval/src/transform/check_consts/check.rs
@@ -8,6 +8,7 @@ use rustc_infer::infer::TyCtxtInferExt;
 use rustc_infer::traits::ObligationCause;
 use rustc_middle::mir::visit::{MutatingUseContext, NonMutatingUseContext, PlaceContext, Visitor};
 use rustc_middle::mir::*;
+use rustc_middle::span_bug;
 use rustc_middle::ty::{self, adjustment::PointerCoercion, Ty, TyCtxt};
 use rustc_middle::ty::{Instance, InstanceDef, TypeVisitableExt};
 use rustc_mir_dataflow::Analysis;
diff --git a/compiler/rustc_const_eval/src/transform/check_consts/mod.rs b/compiler/rustc_const_eval/src/transform/check_consts/mod.rs
index 12e7ec15e32..308b90cd470 100644
--- a/compiler/rustc_const_eval/src/transform/check_consts/mod.rs
+++ b/compiler/rustc_const_eval/src/transform/check_consts/mod.rs
@@ -8,6 +8,7 @@ use rustc_attr as attr;
 use rustc_errors::DiagCtxt;
 use rustc_hir as hir;
 use rustc_hir::def_id::{DefId, LocalDefId};
+use rustc_middle::bug;
 use rustc_middle::mir;
 use rustc_middle::ty::{self, PolyFnSig, TyCtxt};
 use rustc_span::Symbol;
diff --git a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs
index 247a2889dc5..8775685e8c7 100644
--- a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs
+++ b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs
@@ -8,6 +8,7 @@ use rustc_hir::def_id::DefId;
 use rustc_infer::infer::TyCtxtInferExt;
 use rustc_infer::traits::{ImplSource, Obligation, ObligationCause};
 use rustc_middle::mir::{self, CallSource};
+use rustc_middle::span_bug;
 use rustc_middle::ty::print::{with_no_trimmed_paths, PrintTraitRefExt as _};
 use rustc_middle::ty::{
     self, suggest_constraining_type_param, Closure, FnDef, FnPtr, GenericArgKind, GenericArgsRef,
diff --git a/compiler/rustc_const_eval/src/transform/check_consts/qualifs.rs b/compiler/rustc_const_eval/src/transform/check_consts/qualifs.rs
index 1847847d9d2..eae0e2f27db 100644
--- a/compiler/rustc_const_eval/src/transform/check_consts/qualifs.rs
+++ b/compiler/rustc_const_eval/src/transform/check_consts/qualifs.rs
@@ -5,6 +5,7 @@
 use rustc_errors::ErrorGuaranteed;
 use rustc_hir::LangItem;
 use rustc_infer::infer::TyCtxtInferExt;
+use rustc_middle::bug;
 use rustc_middle::mir;
 use rustc_middle::mir::*;
 use rustc_middle::traits::BuiltinImplSource;
diff --git a/compiler/rustc_const_eval/src/transform/validate.rs b/compiler/rustc_const_eval/src/transform/validate.rs
index c95166d84e9..fdc7f6a69cb 100644
--- a/compiler/rustc_const_eval/src/transform/validate.rs
+++ b/compiler/rustc_const_eval/src/transform/validate.rs
@@ -9,6 +9,7 @@ use rustc_middle::mir::interpret::Scalar;
 use rustc_middle::mir::visit::{NonUseContext, PlaceContext, Visitor};
 use rustc_middle::mir::*;
 use rustc_middle::ty::{self, InstanceDef, ParamEnv, Ty, TyCtxt, TypeVisitableExt, Variance};
+use rustc_middle::{bug, span_bug};
 use rustc_target::abi::{Size, FIRST_VARIANT};
 use rustc_target::spec::abi::Abi;
 
diff --git a/compiler/rustc_const_eval/src/util/caller_location.rs b/compiler/rustc_const_eval/src/util/caller_location.rs
index af9a4a4271d..403bc1eca13 100644
--- a/compiler/rustc_const_eval/src/util/caller_location.rs
+++ b/compiler/rustc_const_eval/src/util/caller_location.rs
@@ -1,4 +1,5 @@
 use rustc_hir::LangItem;
+use rustc_middle::bug;
 use rustc_middle::mir;
 use rustc_middle::query::TyCtxtAt;
 use rustc_middle::ty::layout::LayoutOf;
diff --git a/compiler/rustc_const_eval/src/util/check_validity_requirement.rs b/compiler/rustc_const_eval/src/util/check_validity_requirement.rs
index 36597507f47..68fb122a765 100644
--- a/compiler/rustc_const_eval/src/util/check_validity_requirement.rs
+++ b/compiler/rustc_const_eval/src/util/check_validity_requirement.rs
@@ -1,3 +1,4 @@
+use rustc_middle::bug;
 use rustc_middle::ty::layout::{LayoutCx, LayoutError, LayoutOf, TyAndLayout, ValidityRequirement};
 use rustc_middle::ty::{ParamEnv, ParamEnvAnd, Ty, TyCtxt};
 use rustc_target::abi::{Abi, FieldsShape, Scalar, Variants};
diff --git a/compiler/rustc_const_eval/src/util/type_name.rs b/compiler/rustc_const_eval/src/util/type_name.rs
index e474b952938..01e517250f7 100644
--- a/compiler/rustc_const_eval/src/util/type_name.rs
+++ b/compiler/rustc_const_eval/src/util/type_name.rs
@@ -1,6 +1,7 @@
 use rustc_data_structures::intern::Interned;
 use rustc_hir::def_id::CrateNum;
 use rustc_hir::definitions::DisambiguatedDefPathData;
+use rustc_middle::bug;
 use rustc_middle::ty::{
     self,
     print::{PrettyPrinter, Print, PrintError, Printer},
diff --git a/compiler/rustc_error_codes/src/error_codes/E0457.md b/compiler/rustc_error_codes/src/error_codes/E0457.md
index e2dbf53a0f8..47bff4bc49f 100644
--- a/compiler/rustc_error_codes/src/error_codes/E0457.md
+++ b/compiler/rustc_error_codes/src/error_codes/E0457.md
@@ -1,4 +1,4 @@
-#### Note: this error code is no longer emitted by the compiler`
+#### Note: this error code is no longer emitted by the compiler
 
 Plugin `..` only found in rlib format, but must be available in dylib format.
 
diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs
index fb9d97ba08b..652c1885073 100644
--- a/compiler/rustc_hir_analysis/src/check/check.rs
+++ b/compiler/rustc_hir_analysis/src/check/check.rs
@@ -14,6 +14,7 @@ use rustc_infer::traits::Obligation;
 use rustc_lint_defs::builtin::REPR_TRANSPARENT_EXTERNAL_PRIVATE_FIELDS;
 use rustc_middle::middle::resolve_bound_vars::ResolvedArg;
 use rustc_middle::middle::stability::EvalResult;
+use rustc_middle::span_bug;
 use rustc_middle::ty::fold::BottomUpFolder;
 use rustc_middle::ty::layout::{LayoutError, MAX_SIMD_LANES};
 use rustc_middle::ty::util::{Discr, InspectCoroutineFields, IntTypeExt};
diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs
index db223f9d80f..8352d1d7a90 100644
--- a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs
+++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs
@@ -19,6 +19,7 @@ use rustc_middle::ty::{
     self, GenericArgs, Ty, TypeFoldable, TypeFolder, TypeSuperFoldable, TypeVisitableExt,
 };
 use rustc_middle::ty::{GenericParamDefKind, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::Span;
 use rustc_trait_selection::regions::InferCtxtRegionExt;
 use rustc_trait_selection::traits::error_reporting::TypeErrCtxtExt;
diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs
index a2a20082bb0..ca08eeea227 100644
--- a/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs
+++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs
@@ -3,6 +3,7 @@ use rustc_hir as hir;
 use rustc_hir::def_id::DefId;
 use rustc_infer::infer::{outlives::env::OutlivesEnvironment, TyCtxtInferExt};
 use rustc_lint_defs::builtin::{REFINING_IMPL_TRAIT_INTERNAL, REFINING_IMPL_TRAIT_REACHABLE};
+use rustc_middle::span_bug;
 use rustc_middle::traits::{ObligationCause, Reveal};
 use rustc_middle::ty::{
     self, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperVisitable, TypeVisitable, TypeVisitor,
diff --git a/compiler/rustc_hir_analysis/src/check/entry.rs b/compiler/rustc_hir_analysis/src/check/entry.rs
index d5908cf2851..e44e8e67da3 100644
--- a/compiler/rustc_hir_analysis/src/check/entry.rs
+++ b/compiler/rustc_hir_analysis/src/check/entry.rs
@@ -1,6 +1,7 @@
 use rustc_hir as hir;
 use rustc_hir::Node;
 use rustc_infer::infer::TyCtxtInferExt;
+use rustc_middle::span_bug;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_session::config::EntryFnType;
 use rustc_span::def_id::{DefId, LocalDefId, CRATE_DEF_ID};
diff --git a/compiler/rustc_hir_analysis/src/check/intrinsic.rs b/compiler/rustc_hir_analysis/src/check/intrinsic.rs
index eb1fa1baecc..00ff470a0a7 100644
--- a/compiler/rustc_hir_analysis/src/check/intrinsic.rs
+++ b/compiler/rustc_hir_analysis/src/check/intrinsic.rs
@@ -9,6 +9,7 @@ use crate::errors::{
 
 use rustc_errors::{codes::*, struct_span_code_err, DiagMessage};
 use rustc_hir as hir;
+use rustc_middle::bug;
 use rustc_middle::traits::{ObligationCause, ObligationCauseCode};
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_span::def_id::LocalDefId;
diff --git a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs
index 45ccd0fa2e0..b09de1a4a09 100644
--- a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs
+++ b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs
@@ -1,6 +1,7 @@
 use rustc_ast::InlineAsmTemplatePiece;
 use rustc_data_structures::fx::FxIndexSet;
 use rustc_hir as hir;
+use rustc_middle::bug;
 use rustc_middle::ty::{self, Article, FloatTy, IntTy, Ty, TyCtxt, TypeVisitableExt, UintTy};
 use rustc_session::lint;
 use rustc_span::def_id::LocalDefId;
diff --git a/compiler/rustc_hir_analysis/src/check/mod.rs b/compiler/rustc_hir_analysis/src/check/mod.rs
index eb0ffc19d45..9c5c0a766b4 100644
--- a/compiler/rustc_hir_analysis/src/check/mod.rs
+++ b/compiler/rustc_hir_analysis/src/check/mod.rs
@@ -90,6 +90,7 @@ use rustc_middle::query::Providers;
 use rustc_middle::ty::error::{ExpectedFound, TypeError};
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_middle::ty::{GenericArgs, GenericArgsRef};
+use rustc_middle::{bug, span_bug};
 use rustc_session::parse::feature_err;
 use rustc_span::symbol::{kw, sym, Ident};
 use rustc_span::{def_id::CRATE_DEF_ID, BytePos, Span, Symbol, DUMMY_SP};
diff --git a/compiler/rustc_hir_analysis/src/check/region.rs b/compiler/rustc_hir_analysis/src/check/region.rs
index d2ea51f65f9..4540310937d 100644
--- a/compiler/rustc_hir_analysis/src/check/region.rs
+++ b/compiler/rustc_hir_analysis/src/check/region.rs
@@ -13,6 +13,7 @@ use rustc_hir::def_id::DefId;
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::{Arm, Block, Expr, LetStmt, Pat, PatKind, Stmt};
 use rustc_index::Idx;
+use rustc_middle::bug;
 use rustc_middle::middle::region::*;
 use rustc_middle::ty::TyCtxt;
 use rustc_span::source_map;
diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs
index e50af9605fd..b918a8c32d8 100644
--- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs
+++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs
@@ -24,6 +24,7 @@ use rustc_middle::ty::{
     TypeVisitable, TypeVisitableExt, TypeVisitor,
 };
 use rustc_middle::ty::{GenericArgKind, GenericArgs};
+use rustc_middle::{bug, span_bug};
 use rustc_session::parse::feature_err;
 use rustc_span::symbol::{sym, Ident};
 use rustc_span::{Span, DUMMY_SP};
diff --git a/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs b/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs
index 4a85e9983f4..e2d3ff558cf 100644
--- a/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs
+++ b/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs
@@ -10,6 +10,7 @@
 use rustc_hir as hir;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::{DefId, LocalDefId};
+use rustc_middle::bug;
 use rustc_middle::ty::fast_reject::{simplify_type, SimplifiedType, TreatParams};
 use rustc_middle::ty::{self, CrateInherentImpls, Ty, TyCtxt};
 use rustc_span::symbol::sym;
diff --git a/compiler/rustc_hir_analysis/src/coherence/orphan.rs b/compiler/rustc_hir_analysis/src/coherence/orphan.rs
index 8e1b2e8e65c..bdac0d9b0b4 100644
--- a/compiler/rustc_hir_analysis/src/coherence/orphan.rs
+++ b/compiler/rustc_hir_analysis/src/coherence/orphan.rs
@@ -10,6 +10,7 @@ use rustc_lint_defs::builtin::UNCOVERED_PARAM_IN_PROJECTION;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_middle::ty::{TypeFoldable, TypeFolder, TypeSuperFoldable};
 use rustc_middle::ty::{TypeSuperVisitable, TypeVisitable, TypeVisitableExt, TypeVisitor};
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::{DefId, LocalDefId};
 use rustc_trait_selection::traits::{self, IsFirstInputType, UncoveredTyParams};
 use rustc_trait_selection::traits::{OrphanCheckErr, OrphanCheckMode};
diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs
index 566f818f899..0b9f7fd41fb 100644
--- a/compiler/rustc_hir_analysis/src/collect.rs
+++ b/compiler/rustc_hir_analysis/src/collect.rs
@@ -30,6 +30,7 @@ use rustc_middle::hir::nested_filter;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::util::{Discr, IntTypeExt};
 use rustc_middle::ty::{self, AdtKind, Const, IsSuggestable, ToPredicate, Ty, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::{kw, sym, Ident, Symbol};
 use rustc_span::{Span, DUMMY_SP};
 use rustc_target::abi::FieldIdx;
diff --git a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs
index 02291cc603e..3c89c2b23fc 100644
--- a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs
+++ b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs
@@ -5,6 +5,7 @@ use rustc_hir as hir;
 use rustc_infer::traits::util;
 use rustc_middle::ty::GenericArgs;
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperFoldable};
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::{DefId, LocalDefId};
 use rustc_span::Span;
 
diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs
index 7e82571d172..8e79b36060c 100644
--- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs
+++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs
@@ -10,6 +10,7 @@ use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_middle::ty::{GenericPredicates, ImplTraitInTraitData, ToPredicate};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::Ident;
 use rustc_span::{Span, DUMMY_SP};
 
diff --git a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs
index 3ef132a3e8c..5c7733065c6 100644
--- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs
+++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs
@@ -15,11 +15,11 @@ use rustc_hir::def_id::LocalDefId;
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::{GenericArg, GenericParam, GenericParamKind, HirId, HirIdMap, LifetimeName, Node};
 use rustc_macros::extension;
-use rustc_middle::bug;
 use rustc_middle::hir::nested_filter;
 use rustc_middle::middle::resolve_bound_vars::*;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::{self, TyCtxt, TypeSuperVisitable, TypeVisitor};
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::DefId;
 use rustc_span::symbol::{sym, Ident};
 use rustc_span::Span;
diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs
index 24a5349858a..1475e53c47c 100644
--- a/compiler/rustc_hir_analysis/src/collect/type_of.rs
+++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs
@@ -7,6 +7,7 @@ use rustc_middle::query::plumbing::CyclePlaceholder;
 use rustc_middle::ty::print::with_forced_trimmed_paths;
 use rustc_middle::ty::util::IntTypeExt;
 use rustc_middle::ty::{self, IsSuggestable, Ty, TyCtxt, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::Ident;
 use rustc_span::{Span, DUMMY_SP};
 
diff --git a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs
index b5765913cb8..1bec8c496ad 100644
--- a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs
+++ b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs
@@ -3,6 +3,7 @@ use rustc_hir::def::DefKind;
 use rustc_hir::def_id::{LocalDefId, CRATE_DEF_ID};
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::{self as hir, def, Expr, ImplItem, Item, Node, TraitItem};
+use rustc_middle::bug;
 use rustc_middle::hir::nested_filter;
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt};
 use rustc_span::{sym, ErrorGuaranteed, DUMMY_SP};
diff --git a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs
index 3b8bb0731fb..b50c11aaa9a 100644
--- a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs
+++ b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs
@@ -1,4 +1,5 @@
 use rustc_data_structures::fx::FxHashSet;
+use rustc_middle::bug;
 use rustc_middle::ty::visit::{TypeSuperVisitable, TypeVisitor};
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_span::Span;
diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs
index de12475678c..6786c9afd0d 100644
--- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs
+++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs
@@ -5,6 +5,7 @@ use rustc_errors::{codes::*, struct_span_code_err};
 use rustc_hir as hir;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::def_id::{DefId, LocalDefId};
+use rustc_middle::bug;
 use rustc_middle::ty::print::PrintTraitRefExt as _;
 use rustc_middle::ty::{self as ty, IsSuggestable, Ty, TyCtxt};
 use rustc_span::symbol::Ident;
diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs
index 38dfa8d57d3..211da237f8a 100644
--- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs
+++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs
@@ -16,6 +16,7 @@ use rustc_hir as hir;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_infer::traits::FulfillmentError;
+use rustc_middle::bug;
 use rustc_middle::query::Key;
 use rustc_middle::ty::print::PrintTraitRefExt as _;
 use rustc_middle::ty::GenericParamDefKind;
diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs
index 591d554d335..d16648b9e8f 100644
--- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs
+++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs
@@ -44,6 +44,7 @@ use rustc_middle::ty::{
     self, Const, GenericArgKind, GenericArgsRef, GenericParamDefKind, ParamEnv, Ty, TyCtxt,
     TypeVisitableExt,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_session::lint::builtin::AMBIGUOUS_ASSOCIATED_ITEMS;
 use rustc_span::edit_distance::find_best_match_for_name;
 use rustc_span::symbol::{kw, Ident, Symbol};
diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/object_safety.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/object_safety.rs
index 37d4d4ec355..b8d4ee58e2e 100644
--- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/object_safety.rs
+++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/object_safety.rs
@@ -6,6 +6,7 @@ use rustc_hir as hir;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::def_id::DefId;
 use rustc_lint_defs::builtin::UNUSED_ASSOCIATED_TYPE_BOUNDS;
+use rustc_middle::span_bug;
 use rustc_middle::ty::fold::BottomUpFolder;
 use rustc_middle::ty::{self, ExistentialPredicateStableCmpExt as _, Ty, TyCtxt, TypeFoldable};
 use rustc_middle::ty::{DynKind, ToPredicate};
diff --git a/compiler/rustc_hir_analysis/src/hir_wf_check.rs b/compiler/rustc_hir_analysis/src/hir_wf_check.rs
index d6ba5fa9b5b..10101aa046e 100644
--- a/compiler/rustc_hir_analysis/src/hir_wf_check.rs
+++ b/compiler/rustc_hir_analysis/src/hir_wf_check.rs
@@ -4,6 +4,7 @@ use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::{ForeignItem, ForeignItemKind};
 use rustc_infer::infer::TyCtxtInferExt;
 use rustc_infer::traits::{ObligationCause, WellFormedLoc};
+use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_span::def_id::LocalDefId;
diff --git a/compiler/rustc_hir_analysis/src/lib.rs b/compiler/rustc_hir_analysis/src/lib.rs
index e75740837f8..654ef4baeb3 100644
--- a/compiler/rustc_hir_analysis/src/lib.rs
+++ b/compiler/rustc_hir_analysis/src/lib.rs
@@ -75,9 +75,6 @@ This API is completely unstable and subject to change.
 #[macro_use]
 extern crate tracing;
 
-#[macro_use]
-extern crate rustc_middle;
-
 // These are used by Clippy.
 pub mod check;
 
diff --git a/compiler/rustc_hir_analysis/src/outlives/test.rs b/compiler/rustc_hir_analysis/src/outlives/test.rs
index 60cd8c39fa0..e9b6c679bd5 100644
--- a/compiler/rustc_hir_analysis/src/outlives/test.rs
+++ b/compiler/rustc_hir_analysis/src/outlives/test.rs
@@ -1,3 +1,4 @@
+use rustc_middle::bug;
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_span::{symbol::sym, ErrorGuaranteed};
 
diff --git a/compiler/rustc_hir_analysis/src/outlives/utils.rs b/compiler/rustc_hir_analysis/src/outlives/utils.rs
index d3bb22d715d..95290bbecf2 100644
--- a/compiler/rustc_hir_analysis/src/outlives/utils.rs
+++ b/compiler/rustc_hir_analysis/src/outlives/utils.rs
@@ -2,6 +2,7 @@ use rustc_data_structures::fx::FxIndexMap;
 use rustc_infer::infer::outlives::components::{push_outlives_components, Component};
 use rustc_middle::ty::{self, Region, Ty, TyCtxt};
 use rustc_middle::ty::{GenericArg, GenericArgKind};
+use rustc_middle::{bug, span_bug};
 use rustc_span::Span;
 use smallvec::smallvec;
 
diff --git a/compiler/rustc_hir_analysis/src/variance/constraints.rs b/compiler/rustc_hir_analysis/src/variance/constraints.rs
index eeb8b028505..730e989edae 100644
--- a/compiler/rustc_hir_analysis/src/variance/constraints.rs
+++ b/compiler/rustc_hir_analysis/src/variance/constraints.rs
@@ -8,6 +8,7 @@ use rustc_hir as hir;
 use rustc_hir::def::DefKind;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_middle::ty::{GenericArgKind, GenericArgsRef};
+use rustc_middle::{bug, span_bug};
 
 use super::terms::VarianceTerm::*;
 use super::terms::*;
diff --git a/compiler/rustc_hir_analysis/src/variance/mod.rs b/compiler/rustc_hir_analysis/src/variance/mod.rs
index 27fdea01c2b..c7e2050453d 100644
--- a/compiler/rustc_hir_analysis/src/variance/mod.rs
+++ b/compiler/rustc_hir_analysis/src/variance/mod.rs
@@ -8,6 +8,7 @@ use rustc_arena::DroplessArena;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_middle::query::Providers;
+use rustc_middle::span_bug;
 use rustc_middle::ty::{self, CrateVariancesMap, GenericArgsRef, Ty, TyCtxt};
 use rustc_middle::ty::{TypeSuperVisitable, TypeVisitable};
 
diff --git a/compiler/rustc_hir_typeck/src/callee.rs b/compiler/rustc_hir_typeck/src/callee.rs
index defb557867b..1347e850d6f 100644
--- a/compiler/rustc_hir_typeck/src/callee.rs
+++ b/compiler/rustc_hir_typeck/src/callee.rs
@@ -19,6 +19,7 @@ use rustc_middle::ty::adjustment::{
 };
 use rustc_middle::ty::GenericArgsRef;
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::symbol::{sym, Ident};
 use rustc_span::Span;
diff --git a/compiler/rustc_hir_typeck/src/cast.rs b/compiler/rustc_hir_typeck/src/cast.rs
index 92f74281ab9..316a2bf08cb 100644
--- a/compiler/rustc_hir_typeck/src/cast.rs
+++ b/compiler/rustc_hir_typeck/src/cast.rs
@@ -36,6 +36,7 @@ use hir::ExprKind;
 use rustc_errors::{codes::*, Applicability, Diag, ErrorGuaranteed};
 use rustc_hir as hir;
 use rustc_macros::{TypeFoldable, TypeVisitable};
+use rustc_middle::bug;
 use rustc_middle::mir::Mutability;
 use rustc_middle::ty::adjustment::AllowTwoPhase;
 use rustc_middle::ty::cast::{CastKind, CastTy};
diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs
index f52f95db6d3..2ff46689d4a 100644
--- a/compiler/rustc_hir_typeck/src/closure.rs
+++ b/compiler/rustc_hir_typeck/src/closure.rs
@@ -10,6 +10,7 @@ use rustc_infer::infer::{BoundRegionConversionTime, DefineOpaqueTypes};
 use rustc_infer::infer::{InferOk, InferResult};
 use rustc_infer::traits::ObligationCauseCode;
 use rustc_macros::{TypeFoldable, TypeVisitable};
+use rustc_middle::span_bug;
 use rustc_middle::ty::visit::{TypeVisitable, TypeVisitableExt};
 use rustc_middle::ty::GenericArgs;
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeSuperVisitable, TypeVisitor};
diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs
index 88ba937e4b5..8d93f402f10 100644
--- a/compiler/rustc_hir_typeck/src/coercion.rs
+++ b/compiler/rustc_hir_typeck/src/coercion.rs
@@ -45,6 +45,7 @@ use rustc_infer::infer::{Coercion, DefineOpaqueTypes, InferOk, InferResult};
 use rustc_infer::traits::{IfExpressionCause, MatchExpressionArmCause};
 use rustc_infer::traits::{Obligation, PredicateObligation};
 use rustc_middle::lint::in_external_macro;
+use rustc_middle::span_bug;
 use rustc_middle::traits::BuiltinImplSource;
 use rustc_middle::ty::adjustment::{
     Adjust, Adjustment, AllowTwoPhase, AutoBorrow, AutoBorrowMutability, PointerCoercion,
diff --git a/compiler/rustc_hir_typeck/src/demand.rs b/compiler/rustc_hir_typeck/src/demand.rs
index b2112491733..706f6f875bf 100644
--- a/compiler/rustc_hir_typeck/src/demand.rs
+++ b/compiler/rustc_hir_typeck/src/demand.rs
@@ -5,6 +5,7 @@ use rustc_hir as hir;
 use rustc_hir::def::Res;
 use rustc_hir::intravisit::Visitor;
 use rustc_infer::infer::{DefineOpaqueTypes, InferOk};
+use rustc_middle::bug;
 use rustc_middle::ty::adjustment::AllowTwoPhase;
 use rustc_middle::ty::error::{ExpectedFound, TypeError};
 use rustc_middle::ty::fold::BottomUpFolder;
diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs
index cdf17f3a113..f283c013805 100644
--- a/compiler/rustc_hir_typeck/src/expr.rs
+++ b/compiler/rustc_hir_typeck/src/expr.rs
@@ -45,6 +45,7 @@ use rustc_middle::ty::adjustment::{Adjust, Adjustment, AllowTwoPhase};
 use rustc_middle::ty::error::{ExpectedFound, TypeError::Sorts};
 use rustc_middle::ty::GenericArgsRef;
 use rustc_middle::ty::{self, AdtKind, Ty, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_session::errors::ExprParenthesesNeeded;
 use rustc_session::parse::feature_err;
 use rustc_span::edit_distance::find_best_match_for_name;
diff --git a/compiler/rustc_hir_typeck/src/expr_use_visitor.rs b/compiler/rustc_hir_typeck/src/expr_use_visitor.rs
index 589f41948de..1864c7e6ef8 100644
--- a/compiler/rustc_hir_typeck/src/expr_use_visitor.rs
+++ b/compiler/rustc_hir_typeck/src/expr_use_visitor.rs
@@ -18,6 +18,7 @@ use rustc_hir as hir;
 use rustc_hir::def::{CtorOf, Res};
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::{HirId, PatKind};
+use rustc_middle::{bug, span_bug};
 use rustc_middle::hir::place::ProjectionKind;
 use rustc_middle::mir::FakeReadCause;
 use rustc_middle::ty::{
diff --git a/compiler/rustc_hir_typeck/src/fallback.rs b/compiler/rustc_hir_typeck/src/fallback.rs
index f240a53a679..c79b6be6560 100644
--- a/compiler/rustc_hir_typeck/src/fallback.rs
+++ b/compiler/rustc_hir_typeck/src/fallback.rs
@@ -9,6 +9,7 @@ use rustc_hir as hir;
 use rustc_hir::intravisit::Visitor;
 use rustc_hir::HirId;
 use rustc_infer::infer::{DefineOpaqueTypes, InferOk};
+use rustc_middle::bug;
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable};
 use rustc_session::lint;
 use rustc_span::DUMMY_SP;
diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs
index b32cab6d3f7..6e8ef044452 100644
--- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs
+++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs
@@ -29,6 +29,7 @@ use rustc_middle::ty::{
     self, AdtKind, CanonicalUserType, GenericParamDefKind, IsIdentity, Ty, TyCtxt, UserType,
 };
 use rustc_middle::ty::{GenericArgKind, GenericArgsRef, UserArgs, UserSelfTy};
+use rustc_middle::{bug, span_bug};
 use rustc_session::lint;
 use rustc_span::def_id::LocalDefId;
 use rustc_span::hygiene::DesugaringKind;
diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
index 5fa715dc761..aea34407a2d 100644
--- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
+++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
@@ -36,6 +36,7 @@ use rustc_infer::infer::{DefineOpaqueTypes, InferOk};
 use rustc_middle::ty::adjustment::AllowTwoPhase;
 use rustc_middle::ty::visit::TypeVisitableExt;
 use rustc_middle::ty::{self, IsSuggestable, Ty, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_session::Session;
 use rustc_span::symbol::{kw, Ident};
 use rustc_span::{sym, BytePos, Span, DUMMY_SP};
diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs
index f1b719f24c7..11f288391c3 100644
--- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs
+++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs
@@ -25,6 +25,7 @@ use rustc_hir_analysis::hir_ty_lowering::HirTyLowerer;
 use rustc_infer::traits;
 use rustc_middle::lint::in_external_macro;
 use rustc_middle::middle::stability::EvalResult;
+use rustc_middle::span_bug;
 use rustc_middle::ty::print::with_no_trimmed_paths;
 use rustc_middle::ty::{
     self, suggest_constraining_type_params, Article, Binder, IsSuggestable, ToPredicate, Ty,
diff --git a/compiler/rustc_hir_typeck/src/intrinsicck.rs b/compiler/rustc_hir_typeck/src/intrinsicck.rs
index 62711e40049..fb8863c143f 100644
--- a/compiler/rustc_hir_typeck/src/intrinsicck.rs
+++ b/compiler/rustc_hir_typeck/src/intrinsicck.rs
@@ -2,6 +2,7 @@ use hir::HirId;
 use rustc_errors::{codes::*, struct_span_code_err};
 use rustc_hir as hir;
 use rustc_index::Idx;
+use rustc_middle::bug;
 use rustc_middle::ty::layout::{LayoutError, SizeSkeleton};
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt};
 use rustc_target::abi::{Pointer, VariantIdx};
diff --git a/compiler/rustc_hir_typeck/src/lib.rs b/compiler/rustc_hir_typeck/src/lib.rs
index 296560dd5ba..6892da7a5e2 100644
--- a/compiler/rustc_hir_typeck/src/lib.rs
+++ b/compiler/rustc_hir_typeck/src/lib.rs
@@ -10,9 +10,6 @@
 #[macro_use]
 extern crate tracing;
 
-#[macro_use]
-extern crate rustc_middle;
-
 mod _match;
 mod autoderef;
 mod callee;
@@ -62,6 +59,7 @@ use rustc_hir_analysis::hir_ty_lowering::HirTyLowerer;
 use rustc_infer::traits::{ObligationCauseCode, ObligationInspector, WellFormedLoc};
 use rustc_middle::query::Providers;
 use rustc_middle::ty::{self, Ty, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_session::config;
 use rustc_span::def_id::LocalDefId;
 use rustc_span::Span;
diff --git a/compiler/rustc_hir_typeck/src/method/confirm.rs b/compiler/rustc_hir_typeck/src/method/confirm.rs
index 007ec7ff378..74254058534 100644
--- a/compiler/rustc_hir_typeck/src/method/confirm.rs
+++ b/compiler/rustc_hir_typeck/src/method/confirm.rs
@@ -16,6 +16,7 @@ use rustc_middle::ty::fold::TypeFoldable;
 use rustc_middle::ty::{
     self, GenericArgs, GenericArgsRef, GenericParamDefKind, Ty, TyCtxt, UserArgs, UserType,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_span::{Span, DUMMY_SP};
 use rustc_trait_selection::traits;
 
diff --git a/compiler/rustc_hir_typeck/src/method/mod.rs b/compiler/rustc_hir_typeck/src/method/mod.rs
index ec613f3d14e..f82182fa058 100644
--- a/compiler/rustc_hir_typeck/src/method/mod.rs
+++ b/compiler/rustc_hir_typeck/src/method/mod.rs
@@ -20,6 +20,7 @@ use rustc_middle::query::Providers;
 use rustc_middle::traits::ObligationCause;
 use rustc_middle::ty::{self, GenericParamDefKind, Ty, TypeVisitableExt};
 use rustc_middle::ty::{GenericArgs, GenericArgsRef};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::Ident;
 use rustc_span::Span;
 use rustc_trait_selection::traits::query::evaluate_obligation::InferCtxtExt;
diff --git a/compiler/rustc_hir_typeck/src/method/prelude2021.rs b/compiler/rustc_hir_typeck/src/method/prelude2021.rs
index 305aaf3b8dd..a305461344d 100644
--- a/compiler/rustc_hir_typeck/src/method/prelude2021.rs
+++ b/compiler/rustc_hir_typeck/src/method/prelude2021.rs
@@ -7,6 +7,7 @@ use hir::HirId;
 use hir::ItemKind;
 use rustc_errors::Applicability;
 use rustc_hir as hir;
+use rustc_middle::span_bug;
 use rustc_middle::ty::{self, Ty};
 use rustc_session::lint::builtin::RUST_2021_PRELUDE_COLLISIONS;
 use rustc_span::symbol::kw::{Empty, Underscore};
diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs
index e9446b862fa..81e179c9090 100644
--- a/compiler/rustc_hir_typeck/src/method/probe.rs
+++ b/compiler/rustc_hir_typeck/src/method/probe.rs
@@ -24,6 +24,7 @@ use rustc_middle::ty::GenericParamDefKind;
 use rustc_middle::ty::ToPredicate;
 use rustc_middle::ty::{self, ParamEnvAnd, Ty, TyCtxt, TypeVisitableExt};
 use rustc_middle::ty::{GenericArgs, GenericArgsRef};
+use rustc_middle::{bug, span_bug};
 use rustc_session::lint;
 use rustc_span::def_id::DefId;
 use rustc_span::def_id::LocalDefId;
diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs
index 0483bd03576..e8a15eb0ca3 100644
--- a/compiler/rustc_hir_typeck/src/method/suggest.rs
+++ b/compiler/rustc_hir_typeck/src/method/suggest.rs
@@ -23,6 +23,7 @@ use rustc_hir::PatKind::Binding;
 use rustc_hir::PathSegment;
 use rustc_hir::{ExprKind, Node, QPath};
 use rustc_infer::infer::{self, RegionVariableOrigin};
+use rustc_middle::bug;
 use rustc_middle::ty::fast_reject::DeepRejectCtxt;
 use rustc_middle::ty::fast_reject::{simplify_type, TreatParams};
 use rustc_middle::ty::print::{
diff --git a/compiler/rustc_hir_typeck/src/op.rs b/compiler/rustc_hir_typeck/src/op.rs
index dca1cda0694..e371775be0a 100644
--- a/compiler/rustc_hir_typeck/src/op.rs
+++ b/compiler/rustc_hir_typeck/src/op.rs
@@ -13,6 +13,7 @@ use rustc_middle::ty::adjustment::{
 };
 use rustc_middle::ty::print::with_no_trimmed_paths;
 use rustc_middle::ty::{self, IsSuggestable, Ty, TyCtxt, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_session::errors::ExprParenthesesNeeded;
 use rustc_span::source_map::Spanned;
 use rustc_span::symbol::{sym, Ident};
diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs
index b77f91dd544..b9b220d5af8 100644
--- a/compiler/rustc_hir_typeck/src/pat.rs
+++ b/compiler/rustc_hir_typeck/src/pat.rs
@@ -11,6 +11,7 @@ use rustc_hir::{self as hir, BindingMode, ByRef, HirId, Mutability, Pat, PatKind
 use rustc_infer::infer;
 use rustc_middle::mir::interpret::ErrorHandled;
 use rustc_middle::ty::{self, Ty, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_session::lint::builtin::NON_EXHAUSTIVE_OMITTED_PATTERNS;
 use rustc_span::edit_distance::find_best_match_for_name;
 use rustc_span::hygiene::DesugaringKind;
diff --git a/compiler/rustc_hir_typeck/src/place_op.rs b/compiler/rustc_hir_typeck/src/place_op.rs
index 374279722ba..515e1b5ed0e 100644
--- a/compiler/rustc_hir_typeck/src/place_op.rs
+++ b/compiler/rustc_hir_typeck/src/place_op.rs
@@ -5,6 +5,7 @@ use rustc_errors::Applicability;
 use rustc_hir as hir;
 use rustc_hir_analysis::autoderef::Autoderef;
 use rustc_infer::infer::InferOk;
+use rustc_middle::span_bug;
 use rustc_middle::ty::adjustment::{Adjust, Adjustment, OverloadedDeref, PointerCoercion};
 use rustc_middle::ty::adjustment::{AllowTwoPhase, AutoBorrow, AutoBorrowMutability};
 use rustc_middle::ty::{self, Ty};
diff --git a/compiler/rustc_hir_typeck/src/rvalue_scopes.rs b/compiler/rustc_hir_typeck/src/rvalue_scopes.rs
index 34ce0ab1f8b..805f36d9b97 100644
--- a/compiler/rustc_hir_typeck/src/rvalue_scopes.rs
+++ b/compiler/rustc_hir_typeck/src/rvalue_scopes.rs
@@ -2,6 +2,7 @@ use super::FnCtxt;
 use hir::def_id::DefId;
 use hir::Node;
 use rustc_hir as hir;
+use rustc_middle::bug;
 use rustc_middle::middle::region::{RvalueCandidateType, Scope, ScopeTree};
 use rustc_middle::ty::RvalueScopes;
 
diff --git a/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs b/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs
index 31ce271a5fc..19d6481cc1b 100644
--- a/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs
+++ b/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs
@@ -5,6 +5,7 @@ use rustc_hir as hir;
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::{HirId, HirIdMap};
 use rustc_infer::infer::{InferCtxt, InferOk, TyCtxtInferExt};
+use rustc_middle::span_bug;
 use rustc_middle::ty::visit::TypeVisitableExt;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_span::def_id::LocalDefIdMap;
diff --git a/compiler/rustc_hir_typeck/src/upvar.rs b/compiler/rustc_hir_typeck/src/upvar.rs
index 819a8b66116..d313c0eafe1 100644
--- a/compiler/rustc_hir_typeck/src/upvar.rs
+++ b/compiler/rustc_hir_typeck/src/upvar.rs
@@ -47,6 +47,7 @@ use rustc_middle::ty::{
     self, ClosureSizeProfileData, Ty, TyCtxt, TypeVisitableExt as _, TypeckResults, UpvarArgs,
     UpvarCapture,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_session::lint;
 use rustc_span::sym;
 use rustc_span::{BytePos, Pos, Span, Symbol};
diff --git a/compiler/rustc_hir_typeck/src/writeback.rs b/compiler/rustc_hir_typeck/src/writeback.rs
index 45f8fa77e56..f798deea207 100644
--- a/compiler/rustc_hir_typeck/src/writeback.rs
+++ b/compiler/rustc_hir_typeck/src/writeback.rs
@@ -9,6 +9,7 @@ use rustc_hir as hir;
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::HirId;
 use rustc_infer::infer::error_reporting::TypeAnnotationNeeded::E0282;
+use rustc_middle::span_bug;
 use rustc_middle::traits::ObligationCause;
 use rustc_middle::ty::adjustment::{Adjust, Adjustment, PointerCoercion};
 use rustc_middle::ty::fold::{TypeFoldable, TypeFolder};
diff --git a/compiler/rustc_infer/src/errors/note_and_explain.rs b/compiler/rustc_infer/src/errors/note_and_explain.rs
index c7f07ebed97..f0b336ca046 100644
--- a/compiler/rustc_infer/src/errors/note_and_explain.rs
+++ b/compiler/rustc_infer/src/errors/note_and_explain.rs
@@ -1,6 +1,7 @@
 use crate::fluent_generated as fluent;
 use crate::infer::error_reporting::nice_region_error::find_anon_type;
 use rustc_errors::{Diag, EmissionGuarantee, IntoDiagArg, SubdiagMessageOp, Subdiagnostic};
+use rustc_middle::bug;
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_span::{symbol::kw, Span};
 
diff --git a/compiler/rustc_infer/src/infer/at.rs b/compiler/rustc_infer/src/infer/at.rs
index 0f21d3966c4..57b58006e23 100644
--- a/compiler/rustc_infer/src/infer/at.rs
+++ b/compiler/rustc_infer/src/infer/at.rs
@@ -27,6 +27,7 @@
 
 use super::*;
 
+use rustc_middle::bug;
 use rustc_middle::ty::relate::{Relate, TypeRelation};
 use rustc_middle::ty::{Const, ImplSubject};
 
diff --git a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs
index 4d712e9ffd3..27b06c4b73e 100644
--- a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs
+++ b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs
@@ -9,6 +9,7 @@ use crate::infer::canonical::{
     Canonical, CanonicalTyVarKind, CanonicalVarInfo, CanonicalVarKind, OriginalQueryValues,
 };
 use crate::infer::InferCtxt;
+use rustc_middle::bug;
 use rustc_middle::ty::fold::{TypeFoldable, TypeFolder, TypeSuperFoldable};
 use rustc_middle::ty::GenericArg;
 use rustc_middle::ty::{self, BoundVar, InferConst, List, Ty, TyCtxt, TypeFlags, TypeVisitableExt};
diff --git a/compiler/rustc_infer/src/infer/canonical/instantiate.rs b/compiler/rustc_infer/src/infer/canonical/instantiate.rs
index f95cc13623c..de0e15ef3de 100644
--- a/compiler/rustc_infer/src/infer/canonical/instantiate.rs
+++ b/compiler/rustc_infer/src/infer/canonical/instantiate.rs
@@ -8,6 +8,7 @@
 
 use crate::infer::canonical::{Canonical, CanonicalVarValues};
 use rustc_macros::extension;
+use rustc_middle::bug;
 use rustc_middle::ty::fold::{FnMutDelegate, TypeFoldable};
 use rustc_middle::ty::GenericArgKind;
 use rustc_middle::ty::{self, TyCtxt};
diff --git a/compiler/rustc_infer/src/infer/canonical/query_response.rs b/compiler/rustc_infer/src/infer/canonical/query_response.rs
index b948067e750..1732913e191 100644
--- a/compiler/rustc_infer/src/infer/canonical/query_response.rs
+++ b/compiler/rustc_infer/src/infer/canonical/query_response.rs
@@ -25,6 +25,7 @@ use rustc_middle::mir::ConstraintCategory;
 use rustc_middle::ty::fold::TypeFoldable;
 use rustc_middle::ty::{self, BoundVar, Ty, TyCtxt};
 use rustc_middle::ty::{GenericArg, GenericArgKind};
+use rustc_middle::{bug, span_bug};
 use std::fmt::Debug;
 use std::iter;
 
diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs
index 3488517a4ef..4cb0bf83aac 100644
--- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs
+++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs
@@ -69,6 +69,7 @@ use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_hir::intravisit::Visitor;
 use rustc_hir::lang_items::LangItem;
 use rustc_macros::extension;
+use rustc_middle::bug;
 use rustc_middle::dep_graph::DepContext;
 use rustc_middle::ty::print::{with_forced_trimmed_paths, PrintError, PrintTraitRefExt as _};
 use rustc_middle::ty::relate::{self, RelateResult, TypeRelation};
diff --git a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs
index 415f0eee8c5..b4decbf14a2 100644
--- a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs
+++ b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs
@@ -11,6 +11,7 @@ use rustc_hir::def::{CtorOf, DefKind, Namespace};
 use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::{Body, Closure, Expr, ExprKind, FnRetTy, HirId, LetStmt, LocalSource};
+use rustc_middle::bug;
 use rustc_middle::hir::nested_filter;
 use rustc_middle::infer::unify_key::ConstVariableValue;
 use rustc_middle::ty::adjustment::{Adjust, Adjustment, AutoBorrow};
diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/mismatched_static_lifetime.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/mismatched_static_lifetime.rs
index fdfce7f8f73..45dce0a0e33 100644
--- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/mismatched_static_lifetime.rs
+++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/mismatched_static_lifetime.rs
@@ -13,6 +13,7 @@ use rustc_data_structures::fx::FxIndexSet;
 use rustc_errors::{ErrorGuaranteed, MultiSpan};
 use rustc_hir as hir;
 use rustc_hir::intravisit::Visitor;
+use rustc_middle::bug;
 use rustc_middle::ty::TypeVisitor;
 
 impl<'a, 'tcx> NiceRegionError<'a, 'tcx> {
diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs
index 31d45133eb0..8859772848f 100644
--- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs
+++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs
@@ -11,6 +11,7 @@ use rustc_data_structures::intern::Interned;
 use rustc_errors::{Diag, IntoDiagArg};
 use rustc_hir::def::Namespace;
 use rustc_hir::def_id::{DefId, CRATE_DEF_ID};
+use rustc_middle::bug;
 use rustc_middle::ty::error::ExpectedFound;
 use rustc_middle::ty::print::{FmtPrinter, Print, PrintTraitRefExt as _, RegionHighlightMode};
 use rustc_middle::ty::GenericArgsRef;
diff --git a/compiler/rustc_infer/src/infer/freshen.rs b/compiler/rustc_infer/src/infer/freshen.rs
index ef9c407acef..b2d89523ea8 100644
--- a/compiler/rustc_infer/src/infer/freshen.rs
+++ b/compiler/rustc_infer/src/infer/freshen.rs
@@ -32,6 +32,7 @@
 //! inferencer knows "so far".
 use super::InferCtxt;
 use rustc_data_structures::fx::FxHashMap;
+use rustc_middle::bug;
 use rustc_middle::infer::unify_key::ToType;
 use rustc_middle::ty::fold::TypeFolder;
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeFoldable, TypeSuperFoldable, TypeVisitableExt};
diff --git a/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs b/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs
index 5ae7f8bf504..72944c9c7de 100644
--- a/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs
+++ b/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs
@@ -20,6 +20,7 @@ use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_middle::ty::{ReBound, RePlaceholder, ReVar};
 use rustc_middle::ty::{ReEarlyParam, ReErased, ReError, ReLateParam, ReStatic};
 use rustc_middle::ty::{Region, RegionVid};
+use rustc_middle::{bug, span_bug};
 use rustc_span::Span;
 use std::fmt;
 
diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs
index ce82296a8aa..efd883d0d83 100644
--- a/compiler/rustc_infer/src/infer/mod.rs
+++ b/compiler/rustc_infer/src/infer/mod.rs
@@ -44,6 +44,7 @@ use rustc_middle::ty::visit::TypeVisitableExt;
 use rustc_middle::ty::{self, GenericParamDefKind, InferConst, InferTy, Ty, TyCtxt};
 use rustc_middle::ty::{ConstVid, EffectVid, FloatVid, IntVid, TyVid};
 use rustc_middle::ty::{GenericArg, GenericArgKind, GenericArgs, GenericArgsRef};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::Symbol;
 use rustc_span::Span;
 use snapshot::undo_log::InferCtxtUndoLogs;
diff --git a/compiler/rustc_infer/src/infer/opaque_types/table.rs b/compiler/rustc_infer/src/infer/opaque_types/table.rs
index a7ddf475436..e07d181e4e0 100644
--- a/compiler/rustc_infer/src/infer/opaque_types/table.rs
+++ b/compiler/rustc_infer/src/infer/opaque_types/table.rs
@@ -1,4 +1,5 @@
 use rustc_data_structures::undo_log::UndoLogs;
+use rustc_middle::bug;
 use rustc_middle::ty::{self, OpaqueHiddenType, OpaqueTypeKey, Ty};
 
 use crate::infer::snapshot::undo_log::{InferCtxtUndoLogs, UndoLog};
diff --git a/compiler/rustc_infer/src/infer/outlives/env.rs b/compiler/rustc_infer/src/infer/outlives/env.rs
index f8dbfdde30c..c44a5082f68 100644
--- a/compiler/rustc_infer/src/infer/outlives/env.rs
+++ b/compiler/rustc_infer/src/infer/outlives/env.rs
@@ -3,6 +3,7 @@ use crate::infer::GenericKind;
 use crate::traits::query::OutlivesBound;
 use rustc_data_structures::fx::FxIndexSet;
 use rustc_data_structures::transitive_relation::TransitiveRelationBuilder;
+use rustc_middle::bug;
 use rustc_middle::ty::{self, Region};
 
 use super::explicit_outlives_bounds;
diff --git a/compiler/rustc_infer/src/infer/outlives/obligations.rs b/compiler/rustc_infer/src/infer/outlives/obligations.rs
index e0d23d7629f..32c790523b6 100644
--- a/compiler/rustc_infer/src/infer/outlives/obligations.rs
+++ b/compiler/rustc_infer/src/infer/outlives/obligations.rs
@@ -67,6 +67,7 @@ use crate::infer::snapshot::undo_log::UndoLog;
 use crate::infer::{self, GenericKind, InferCtxt, RegionObligation, SubregionOrigin, VerifyBound};
 use crate::traits::{ObligationCause, ObligationCauseCode};
 use rustc_data_structures::undo_log::UndoLogs;
+use rustc_middle::bug;
 use rustc_middle::mir::ConstraintCategory;
 use rustc_middle::traits::query::NoSolution;
 use rustc_middle::ty::{
diff --git a/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs b/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs
index 6e8efa3e7c1..255ca52d3e9 100644
--- a/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs
+++ b/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs
@@ -3,6 +3,7 @@ use crate::infer::snapshot::CombinedSnapshot;
 use rustc_data_structures::fx::FxIndexMap;
 use rustc_data_structures::graph::{scc::Sccs, vec_graph::VecGraph};
 use rustc_index::Idx;
+use rustc_middle::span_bug;
 use rustc_middle::ty::error::TypeError;
 use rustc_middle::ty::relate::RelateResult;
 
diff --git a/compiler/rustc_infer/src/infer/region_constraints/mod.rs b/compiler/rustc_infer/src/infer/region_constraints/mod.rs
index 223e6e3d344..6f755e07ff1 100644
--- a/compiler/rustc_infer/src/infer/region_constraints/mod.rs
+++ b/compiler/rustc_infer/src/infer/region_constraints/mod.rs
@@ -17,6 +17,7 @@ use rustc_middle::ty::ReStatic;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_middle::ty::{ReBound, ReVar};
 use rustc_middle::ty::{Region, RegionVid};
+use rustc_middle::{bug, span_bug};
 use rustc_span::Span;
 
 use std::ops::Range;
diff --git a/compiler/rustc_infer/src/infer/relate/combine.rs b/compiler/rustc_infer/src/infer/relate/combine.rs
index 8a3125f9ded..c1baadfa8df 100644
--- a/compiler/rustc_infer/src/infer/relate/combine.rs
+++ b/compiler/rustc_infer/src/infer/relate/combine.rs
@@ -24,6 +24,7 @@ use super::type_relating::TypeRelating;
 use super::StructurallyRelateAliases;
 use crate::infer::{DefineOpaqueTypes, InferCtxt, TypeTrace};
 use crate::traits::{Obligation, PredicateObligations};
+use rustc_middle::bug;
 use rustc_middle::infer::canonical::OriginalQueryValues;
 use rustc_middle::infer::unify_key::EffectVarValue;
 use rustc_middle::ty::error::{ExpectedFound, TypeError};
diff --git a/compiler/rustc_infer/src/infer/relate/generalize.rs b/compiler/rustc_infer/src/infer/relate/generalize.rs
index 5880ca788bc..104c16eac02 100644
--- a/compiler/rustc_infer/src/infer/relate/generalize.rs
+++ b/compiler/rustc_infer/src/infer/relate/generalize.rs
@@ -6,6 +6,7 @@ use crate::infer::{InferCtxt, ObligationEmittingRelation, RegionVariableOrigin};
 use rustc_data_structures::sso::SsoHashMap;
 use rustc_data_structures::stack::ensure_sufficient_stack;
 use rustc_hir::def_id::DefId;
+use rustc_middle::bug;
 use rustc_middle::infer::unify_key::ConstVariableValue;
 use rustc_middle::ty::error::TypeError;
 use rustc_middle::ty::relate::{self, Relate, RelateResult, TypeRelation};
diff --git a/compiler/rustc_infer/src/infer/resolve.rs b/compiler/rustc_infer/src/infer/resolve.rs
index 758aac004dc..61b13dd9a54 100644
--- a/compiler/rustc_infer/src/infer/resolve.rs
+++ b/compiler/rustc_infer/src/infer/resolve.rs
@@ -1,4 +1,5 @@
 use super::{FixupError, FixupResult, InferCtxt};
+use rustc_middle::bug;
 use rustc_middle::ty::fold::{FallibleTypeFolder, TypeFolder, TypeSuperFoldable};
 use rustc_middle::ty::visit::TypeVisitableExt;
 use rustc_middle::ty::{self, Const, InferConst, Ty, TyCtxt, TypeFoldable};
diff --git a/compiler/rustc_infer/src/infer/type_variable.rs b/compiler/rustc_infer/src/infer/type_variable.rs
index 96afa257ebb..b56b39e61f0 100644
--- a/compiler/rustc_infer/src/infer/type_variable.rs
+++ b/compiler/rustc_infer/src/infer/type_variable.rs
@@ -1,6 +1,7 @@
 use rustc_data_structures::undo_log::Rollback;
 use rustc_hir::def_id::DefId;
 use rustc_index::IndexVec;
+use rustc_middle::bug;
 use rustc_middle::ty::{self, Ty, TyVid};
 use rustc_span::Span;
 
diff --git a/compiler/rustc_infer/src/lib.rs b/compiler/rustc_infer/src/lib.rs
index 0299af61d45..28d908abf83 100644
--- a/compiler/rustc_infer/src/lib.rs
+++ b/compiler/rustc_infer/src/lib.rs
@@ -31,8 +31,6 @@
 
 #[macro_use]
 extern crate tracing;
-#[macro_use]
-extern crate rustc_middle;
 
 mod errors;
 pub mod infer;
diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs
index 888c2427d8f..e3205fc1d30 100644
--- a/compiler/rustc_metadata/src/creader.rs
+++ b/compiler/rustc_metadata/src/creader.rs
@@ -16,6 +16,7 @@ use rustc_fs_util::try_canonicalize;
 use rustc_hir::def_id::{CrateNum, LocalDefId, StableCrateId, LOCAL_CRATE};
 use rustc_hir::definitions::Definitions;
 use rustc_index::IndexVec;
+use rustc_middle::bug;
 use rustc_middle::ty::{TyCtxt, TyCtxtFeed};
 use rustc_session::config::{self, CrateType, ExternLocation};
 use rustc_session::cstore::{CrateDepKind, CrateSource, ExternCrate, ExternCrateSource};
diff --git a/compiler/rustc_metadata/src/dependency_format.rs b/compiler/rustc_metadata/src/dependency_format.rs
index 4d1bd455412..99181f9c860 100644
--- a/compiler/rustc_metadata/src/dependency_format.rs
+++ b/compiler/rustc_metadata/src/dependency_format.rs
@@ -59,6 +59,7 @@ use crate::errors::{
 
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir::def_id::CrateNum;
+use rustc_middle::bug;
 use rustc_middle::middle::dependency_format::{Dependencies, DependencyList, Linkage};
 use rustc_middle::ty::TyCtxt;
 use rustc_session::config::CrateType;
diff --git a/compiler/rustc_metadata/src/lib.rs b/compiler/rustc_metadata/src/lib.rs
index c8162a1f0ee..99584845e49 100644
--- a/compiler/rustc_metadata/src/lib.rs
+++ b/compiler/rustc_metadata/src/lib.rs
@@ -19,9 +19,6 @@
 
 extern crate proc_macro;
 
-#[macro_use]
-extern crate rustc_middle;
-
 #[macro_use]
 extern crate tracing;
 
diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs
index 2a33088513b..bb68c6eaf09 100644
--- a/compiler/rustc_metadata/src/rmeta/decoder.rs
+++ b/compiler/rustc_metadata/src/rmeta/decoder.rs
@@ -21,6 +21,7 @@ use rustc_middle::middle::lib_features::LibFeatures;
 use rustc_middle::mir::interpret::{AllocDecodingSession, AllocDecodingState};
 use rustc_middle::ty::codec::TyDecoder;
 use rustc_middle::ty::Visibility;
+use rustc_middle::{bug, implement_ty_decoder};
 use rustc_serialize::opaque::MemDecoder;
 use rustc_serialize::{Decodable, Decoder};
 use rustc_session::cstore::{CrateSource, ExternCrate};
diff --git a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs
index 531b2e05411..c783149a695 100644
--- a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs
+++ b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs
@@ -11,6 +11,7 @@ use rustc_hir::def::{CtorKind, DefKind, Res};
 use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LOCAL_CRATE};
 use rustc_hir::definitions::{DefKey, DefPath, DefPathHash};
 use rustc_middle::arena::ArenaAllocatable;
+use rustc_middle::bug;
 use rustc_middle::metadata::ModChild;
 use rustc_middle::middle::exported_symbols::ExportedSymbol;
 use rustc_middle::middle::stability::DeprecationEntry;
diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs
index 7c96a6fa9a9..db0dc6d9064 100644
--- a/compiler/rustc_metadata/src/rmeta/encoder.rs
+++ b/compiler/rustc_metadata/src/rmeta/encoder.rs
@@ -20,6 +20,7 @@ use rustc_middle::ty::codec::TyEncoder;
 use rustc_middle::ty::fast_reject::{self, TreatParams};
 use rustc_middle::ty::{AssocItemContainer, SymbolName};
 use rustc_middle::util::common::to_readable_str;
+use rustc_middle::{bug, span_bug};
 use rustc_serialize::{opaque, Decodable, Decoder, Encodable, Encoder};
 use rustc_session::config::{CrateType, OptLevel};
 use rustc_span::hygiene::HygieneEncodeContext;
diff --git a/compiler/rustc_metadata/src/rmeta/mod.rs b/compiler/rustc_metadata/src/rmeta/mod.rs
index c9cb2f5a240..79e4ff81093 100644
--- a/compiler/rustc_metadata/src/rmeta/mod.rs
+++ b/compiler/rustc_metadata/src/rmeta/mod.rs
@@ -24,6 +24,7 @@ use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs;
 use rustc_middle::middle::exported_symbols::{ExportedSymbol, SymbolExportInfo};
 use rustc_middle::middle::resolve_bound_vars::ObjectLifetimeDefault;
 use rustc_middle::mir;
+use rustc_middle::trivially_parameterized_over_tcx;
 use rustc_middle::ty::fast_reject::SimplifiedType;
 use rustc_middle::ty::{self, ReprOptions, Ty, UnusedGenericParams};
 use rustc_middle::ty::{DeducedParamAttrs, ParameterizedOverTcx, TyCtxt};
diff --git a/compiler/rustc_middle/src/mir/interpret/mod.rs b/compiler/rustc_middle/src/mir/interpret/mod.rs
index 38cb1d5f9a0..20afe52c1f3 100644
--- a/compiler/rustc_middle/src/mir/interpret/mod.rs
+++ b/compiler/rustc_middle/src/mir/interpret/mod.rs
@@ -8,11 +8,13 @@ macro_rules! err_unsup {
         )
     };
 }
+pub use err_unsup;
 
 #[macro_export]
 macro_rules! err_unsup_format {
-    ($($tt:tt)*) => { err_unsup!(Unsupported(format!($($tt)*))) };
+    ($($tt:tt)*) => { $crate::err_unsup!(Unsupported(format!($($tt)*))) };
 }
+pub use err_unsup_format;
 
 #[macro_export]
 macro_rules! err_inval {
@@ -22,6 +24,7 @@ macro_rules! err_inval {
         )
     };
 }
+pub use err_inval;
 
 #[macro_export]
 macro_rules! err_ub {
@@ -31,11 +34,13 @@ macro_rules! err_ub {
         )
     };
 }
+pub use err_ub;
 
 #[macro_export]
 macro_rules! err_ub_format {
     ($($tt:tt)*) => { err_ub!(Ub(format!($($tt)*))) };
 }
+pub use err_ub_format;
 
 #[macro_export]
 macro_rules! err_exhaust {
@@ -45,6 +50,7 @@ macro_rules! err_exhaust {
         )
     };
 }
+pub use err_exhaust;
 
 #[macro_export]
 macro_rules! err_machine_stop {
@@ -52,42 +58,50 @@ macro_rules! err_machine_stop {
         $crate::mir::interpret::InterpError::MachineStop(Box::new($($tt)*))
     };
 }
+pub use err_machine_stop;
 
 // In the `throw_*` macros, avoid `return` to make them work with `try {}`.
 #[macro_export]
 macro_rules! throw_unsup {
-    ($($tt:tt)*) => { do yeet err_unsup!($($tt)*) };
+    ($($tt:tt)*) => { do yeet $crate::err_unsup!($($tt)*) };
 }
+pub use throw_unsup;
 
 #[macro_export]
 macro_rules! throw_unsup_format {
-    ($($tt:tt)*) => { throw_unsup!(Unsupported(format!($($tt)*))) };
+    ($($tt:tt)*) => { $crate::throw_unsup!(Unsupported(format!($($tt)*))) };
 }
+pub use throw_unsup_format;
 
 #[macro_export]
 macro_rules! throw_inval {
-    ($($tt:tt)*) => { do yeet err_inval!($($tt)*) };
+    ($($tt:tt)*) => { do yeet $crate::err_inval!($($tt)*) };
 }
+pub use throw_inval;
 
 #[macro_export]
 macro_rules! throw_ub {
-    ($($tt:tt)*) => { do yeet err_ub!($($tt)*) };
+    ($($tt:tt)*) => { do yeet $crate::err_ub!($($tt)*) };
 }
+pub use throw_ub;
 
 #[macro_export]
 macro_rules! throw_ub_format {
-    ($($tt:tt)*) => { throw_ub!(Ub(format!($($tt)*))) };
+    ($($tt:tt)*) => { $crate::throw_ub!(Ub(format!($($tt)*))) };
 }
+pub use throw_ub_format;
 
 #[macro_export]
 macro_rules! throw_exhaust {
-    ($($tt:tt)*) => { do yeet err_exhaust!($($tt)*) };
+    ($($tt:tt)*) => { do yeet $crate::err_exhaust!($($tt)*) };
 }
+pub use throw_exhaust;
 
 #[macro_export]
 macro_rules! throw_machine_stop {
-    ($($tt:tt)*) => { do yeet err_machine_stop!($($tt)*) };
+    ($($tt:tt)*) => { do yeet $crate::err_machine_stop!($($tt)*) };
 }
+pub use throw_machine_stop;
 
 #[macro_export]
 macro_rules! err_ub_custom {
@@ -95,8 +109,8 @@ macro_rules! err_ub_custom {
         $(
             let ($($name,)*) = ($($value,)*);
         )?
-        err_ub!(Custom(
-            rustc_middle::error::CustomSubdiagnostic {
+        $crate::err_ub!(Custom(
+            $crate::error::CustomSubdiagnostic {
                 msg: || $msg,
                 add_args: Box::new(move |mut set_arg| {
                     $($(
@@ -107,11 +121,13 @@ macro_rules! err_ub_custom {
         ))
     }};
 }
+pub use err_ub_custom;
 
 #[macro_export]
 macro_rules! throw_ub_custom {
-    ($($tt:tt)*) => { do yeet err_ub_custom!($($tt)*) };
+    ($($tt:tt)*) => { do yeet $crate::err_ub_custom!($($tt)*) };
 }
+pub use throw_ub_custom;
 
 mod allocation;
 mod error;
diff --git a/compiler/rustc_mir_build/src/build/block.rs b/compiler/rustc_mir_build/src/build/block.rs
index 00e99f330f7..6ae98e15946 100644
--- a/compiler/rustc_mir_build/src/build/block.rs
+++ b/compiler/rustc_mir_build/src/build/block.rs
@@ -1,6 +1,7 @@
 use crate::build::ForGuard::OutsideGuard;
 use crate::build::{BlockAnd, BlockAndExtension, BlockFrame, Builder};
 use rustc_middle::middle::region::Scope;
+use rustc_middle::span_bug;
 use rustc_middle::thir::*;
 use rustc_middle::{mir::*, ty};
 use rustc_span::Span;
diff --git a/compiler/rustc_mir_build/src/build/coverageinfo/mcdc.rs b/compiler/rustc_mir_build/src/build/coverageinfo/mcdc.rs
index 566dba460d4..9cfb25e663d 100644
--- a/compiler/rustc_mir_build/src/build/coverageinfo/mcdc.rs
+++ b/compiler/rustc_mir_build/src/build/coverageinfo/mcdc.rs
@@ -1,5 +1,6 @@
 use std::collections::VecDeque;
 
+use rustc_middle::bug;
 use rustc_middle::mir::coverage::{
     BlockMarkerId, ConditionId, ConditionInfo, MCDCBranchSpan, MCDCDecisionSpan,
 };
diff --git a/compiler/rustc_mir_build/src/build/custom/mod.rs b/compiler/rustc_mir_build/src/build/custom/mod.rs
index 30877e38318..a0a512a2eff 100644
--- a/compiler/rustc_mir_build/src/build/custom/mod.rs
+++ b/compiler/rustc_mir_build/src/build/custom/mod.rs
@@ -24,6 +24,7 @@ use rustc_hir::HirId;
 use rustc_index::{IndexSlice, IndexVec};
 use rustc_middle::{
     mir::*,
+    span_bug,
     thir::*,
     ty::{ParamEnv, Ty, TyCtxt},
 };
diff --git a/compiler/rustc_mir_build/src/build/expr/as_constant.rs b/compiler/rustc_mir_build/src/build/expr/as_constant.rs
index a557f61b016..817f5f787b1 100644
--- a/compiler/rustc_mir_build/src/build/expr/as_constant.rs
+++ b/compiler/rustc_mir_build/src/build/expr/as_constant.rs
@@ -9,6 +9,7 @@ use rustc_middle::thir::*;
 use rustc_middle::ty::{
     self, CanonicalUserType, CanonicalUserTypeAnnotation, TyCtxt, UserTypeAnnotationIndex,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_target::abi::Size;
 
 impl<'a, 'tcx> Builder<'a, 'tcx> {
diff --git a/compiler/rustc_mir_build/src/build/expr/as_place.rs b/compiler/rustc_mir_build/src/build/expr/as_place.rs
index 060b328ef48..9963629fc52 100644
--- a/compiler/rustc_mir_build/src/build/expr/as_place.rs
+++ b/compiler/rustc_mir_build/src/build/expr/as_place.rs
@@ -4,6 +4,7 @@ use crate::build::expr::category::Category;
 use crate::build::ForGuard::{OutsideGuard, RefWithinGuard};
 use crate::build::{BlockAnd, BlockAndExtension, Builder, Capture, CaptureMap};
 use rustc_hir::def_id::LocalDefId;
+use rustc_middle::bug;
 use rustc_middle::hir::place::Projection as HirProjection;
 use rustc_middle::hir::place::ProjectionKind as HirProjectionKind;
 use rustc_middle::middle::region;
diff --git a/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs b/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs
index 260ab058e60..0b2248d049a 100644
--- a/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs
+++ b/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs
@@ -9,6 +9,7 @@ use crate::build::expr::as_place::PlaceBase;
 use crate::build::expr::category::{Category, RvalueFunc};
 use crate::build::{BlockAnd, BlockAndExtension, Builder, NeedsTemporary};
 use rustc_hir::lang_items::LangItem;
+use rustc_middle::bug;
 use rustc_middle::middle::region;
 use rustc_middle::mir::interpret::Scalar;
 use rustc_middle::mir::*;
diff --git a/compiler/rustc_mir_build/src/build/expr/into.rs b/compiler/rustc_mir_build/src/build/expr/into.rs
index c8360b6a5fd..f8c91073045 100644
--- a/compiler/rustc_mir_build/src/build/expr/into.rs
+++ b/compiler/rustc_mir_build/src/build/expr/into.rs
@@ -7,6 +7,7 @@ use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::stack::ensure_sufficient_stack;
 use rustc_hir as hir;
 use rustc_middle::mir::*;
+use rustc_middle::span_bug;
 use rustc_middle::thir::*;
 use rustc_middle::ty::CanonicalUserTypeAnnotation;
 use rustc_span::source_map::Spanned;
diff --git a/compiler/rustc_mir_build/src/build/matches/mod.rs b/compiler/rustc_mir_build/src/build/matches/mod.rs
index 7cf4fac731b..3fc719394bf 100644
--- a/compiler/rustc_mir_build/src/build/matches/mod.rs
+++ b/compiler/rustc_mir_build/src/build/matches/mod.rs
@@ -12,6 +12,7 @@ use crate::build::{BlockAnd, BlockAndExtension, Builder};
 use crate::build::{GuardFrame, GuardFrameLocal, LocalsForNode};
 use rustc_data_structures::{fx::FxIndexMap, stack::ensure_sufficient_stack};
 use rustc_hir::{BindingMode, ByRef};
+use rustc_middle::bug;
 use rustc_middle::middle::region;
 use rustc_middle::mir::{self, *};
 use rustc_middle::thir::{self, *};
diff --git a/compiler/rustc_mir_build/src/build/matches/test.rs b/compiler/rustc_mir_build/src/build/matches/test.rs
index 7f65697fa4b..f3faeb4158e 100644
--- a/compiler/rustc_mir_build/src/build/matches/test.rs
+++ b/compiler/rustc_mir_build/src/build/matches/test.rs
@@ -13,6 +13,7 @@ use rustc_middle::mir::*;
 use rustc_middle::ty::util::IntTypeExt;
 use rustc_middle::ty::GenericArg;
 use rustc_middle::ty::{self, adjustment::PointerCoercion, Ty, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::DefId;
 use rustc_span::source_map::Spanned;
 use rustc_span::symbol::{sym, Symbol};
diff --git a/compiler/rustc_mir_build/src/build/mod.rs b/compiler/rustc_mir_build/src/build/mod.rs
index 794e7ebb7b4..92cd7f75d62 100644
--- a/compiler/rustc_mir_build/src/build/mod.rs
+++ b/compiler/rustc_mir_build/src/build/mod.rs
@@ -20,6 +20,7 @@ use rustc_middle::mir::*;
 use rustc_middle::query::TyCtxtAt;
 use rustc_middle::thir::{self, ExprId, LintLevel, LocalVarId, Param, ParamId, PatKind, Thir};
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::sym;
 use rustc_span::Span;
 use rustc_span::Symbol;
diff --git a/compiler/rustc_mir_build/src/build/scope.rs b/compiler/rustc_mir_build/src/build/scope.rs
index 2d31e84aba7..be32363fec5 100644
--- a/compiler/rustc_mir_build/src/build/scope.rs
+++ b/compiler/rustc_mir_build/src/build/scope.rs
@@ -90,6 +90,7 @@ use rustc_index::{IndexSlice, IndexVec};
 use rustc_middle::middle::region;
 use rustc_middle::mir::*;
 use rustc_middle::thir::{ExprId, LintLevel};
+use rustc_middle::{bug, span_bug};
 use rustc_session::lint::Level;
 use rustc_span::source_map::Spanned;
 use rustc_span::{Span, DUMMY_SP};
diff --git a/compiler/rustc_mir_build/src/check_unsafety.rs b/compiler/rustc_mir_build/src/check_unsafety.rs
index 227d19c3e43..b9990d65ec7 100644
--- a/compiler/rustc_mir_build/src/check_unsafety.rs
+++ b/compiler/rustc_mir_build/src/check_unsafety.rs
@@ -4,6 +4,7 @@ use crate::errors::*;
 use rustc_errors::DiagArgValue;
 use rustc_hir::{self as hir, BindingMode, ByRef, HirId, Mutability};
 use rustc_middle::mir::BorrowKind;
+use rustc_middle::span_bug;
 use rustc_middle::thir::visit::Visitor;
 use rustc_middle::thir::*;
 use rustc_middle::ty::print::with_no_trimmed_paths;
diff --git a/compiler/rustc_mir_build/src/lib.rs b/compiler/rustc_mir_build/src/lib.rs
index e79e3b887fb..2e1cb0e1b5e 100644
--- a/compiler/rustc_mir_build/src/lib.rs
+++ b/compiler/rustc_mir_build/src/lib.rs
@@ -12,8 +12,6 @@
 
 #[macro_use]
 extern crate tracing;
-#[macro_use]
-extern crate rustc_middle;
 
 mod build;
 mod check_unsafety;
diff --git a/compiler/rustc_mir_build/src/thir/constant.rs b/compiler/rustc_mir_build/src/thir/constant.rs
index 65cc13286af..03c7c1fd6ec 100644
--- a/compiler/rustc_mir_build/src/thir/constant.rs
+++ b/compiler/rustc_mir_build/src/thir/constant.rs
@@ -1,4 +1,5 @@
 use rustc_ast as ast;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::{LitToConstError, LitToConstInput};
 use rustc_middle::ty::{self, ParamEnv, ScalarInt, TyCtxt};
 
diff --git a/compiler/rustc_mir_build/src/thir/cx/expr.rs b/compiler/rustc_mir_build/src/thir/cx/expr.rs
index c697e16217b..b7766666960 100644
--- a/compiler/rustc_mir_build/src/thir/cx/expr.rs
+++ b/compiler/rustc_mir_build/src/thir/cx/expr.rs
@@ -21,6 +21,7 @@ use rustc_middle::ty::GenericArgs;
 use rustc_middle::ty::{
     self, AdtKind, InlineConstArgs, InlineConstArgsParts, ScalarInt, Ty, UpvarArgs, UserType,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_span::source_map::Spanned;
 use rustc_span::{sym, Span, DUMMY_SP};
 use rustc_target::abi::{FieldIdx, FIRST_VARIANT};
diff --git a/compiler/rustc_mir_build/src/thir/cx/mod.rs b/compiler/rustc_mir_build/src/thir/cx/mod.rs
index 79738b54035..d1d21f88aef 100644
--- a/compiler/rustc_mir_build/src/thir/cx/mod.rs
+++ b/compiler/rustc_mir_build/src/thir/cx/mod.rs
@@ -13,6 +13,7 @@ use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_hir::lang_items::LangItem;
 use rustc_hir::HirId;
 use rustc_hir::Node;
+use rustc_middle::bug;
 use rustc_middle::middle::region;
 use rustc_middle::thir::*;
 use rustc_middle::ty::{self, RvalueScopes, TyCtxt};
diff --git a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs
index 25ab9046706..592f0dcf4ef 100644
--- a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs
+++ b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs
@@ -1,9 +1,3 @@
-use rustc_pattern_analysis::errors::Uncovered;
-use rustc_pattern_analysis::rustc::{
-    Constructor, DeconstructedPat, MatchArm, RustcPatCtxt as PatCtxt, Usefulness, UsefulnessReport,
-    WitnessPat,
-};
-
 use crate::errors::*;
 
 use rustc_arena::{DroplessArena, TypedArena};
@@ -14,11 +8,17 @@ use rustc_errors::{codes::*, struct_span_code_err, Applicability, ErrorGuarantee
 use rustc_hir::def::*;
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::{self as hir, BindingMode, ByRef, HirId};
+use rustc_middle::bug;
 use rustc_middle::middle::limits::get_limit_size;
 use rustc_middle::thir::visit::Visitor;
 use rustc_middle::thir::*;
 use rustc_middle::ty::print::with_no_trimmed_paths;
 use rustc_middle::ty::{self, AdtDef, Ty, TyCtxt};
+use rustc_pattern_analysis::errors::Uncovered;
+use rustc_pattern_analysis::rustc::{
+    Constructor, DeconstructedPat, MatchArm, RustcPatCtxt as PatCtxt, Usefulness, UsefulnessReport,
+    WitnessPat,
+};
 use rustc_session::lint::builtin::{
     BINDINGS_WITH_VARIANT_NAME, IRREFUTABLE_LET_PATTERNS, UNREACHABLE_PATTERNS,
 };
diff --git a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs
index 65c53be8ddd..c6f81c3cb99 100644
--- a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs
+++ b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs
@@ -4,6 +4,7 @@ use rustc_index::Idx;
 use rustc_infer::infer::{InferCtxt, TyCtxtInferExt};
 use rustc_infer::traits::Obligation;
 use rustc_middle::mir;
+use rustc_middle::span_bug;
 use rustc_middle::thir::{FieldPat, Pat, PatKind};
 use rustc_middle::ty::{self, Ty, TyCtxt, ValTree};
 use rustc_session::lint;
diff --git a/compiler/rustc_mir_build/src/thir/pattern/mod.rs b/compiler/rustc_mir_build/src/thir/pattern/mod.rs
index 48fc0293f40..dc845b3d4ac 100644
--- a/compiler/rustc_mir_build/src/thir/pattern/mod.rs
+++ b/compiler/rustc_mir_build/src/thir/pattern/mod.rs
@@ -21,6 +21,7 @@ use rustc_middle::thir::{
 };
 use rustc_middle::ty::layout::IntegerExt;
 use rustc_middle::ty::{self, CanonicalUserTypeAnnotation, Ty, TyCtxt, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::{ErrorGuaranteed, Span};
 use rustc_target::abi::{FieldIdx, Integer};
diff --git a/compiler/rustc_mir_build/src/thir/util.rs b/compiler/rustc_mir_build/src/thir/util.rs
index 52c9cf14ac8..340eb3c2eea 100644
--- a/compiler/rustc_mir_build/src/thir/util.rs
+++ b/compiler/rustc_mir_build/src/thir/util.rs
@@ -1,4 +1,5 @@
 use rustc_hir as hir;
+use rustc_middle::bug;
 use rustc_middle::ty::{self, CanonicalUserType, TyCtxt, UserType};
 
 pub(crate) trait UserAnnotatedTyHelpers<'tcx> {
diff --git a/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs b/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs
index ba70a4453d6..d43fca3dc7e 100644
--- a/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs
+++ b/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs
@@ -1,5 +1,6 @@
 use rustc_ast::InlineAsmOptions;
 use rustc_middle::mir::*;
+use rustc_middle::span_bug;
 use rustc_middle::ty::layout;
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_target::spec::abi::Abi;
diff --git a/compiler/rustc_mir_transform/src/check_packed_ref.rs b/compiler/rustc_mir_transform/src/check_packed_ref.rs
index a405ed6088d..5f67bd75c48 100644
--- a/compiler/rustc_mir_transform/src/check_packed_ref.rs
+++ b/compiler/rustc_mir_transform/src/check_packed_ref.rs
@@ -1,5 +1,6 @@
 use rustc_middle::mir::visit::{PlaceContext, Visitor};
 use rustc_middle::mir::*;
+use rustc_middle::span_bug;
 use rustc_middle::ty::{self, TyCtxt};
 
 use crate::MirLint;
diff --git a/compiler/rustc_mir_transform/src/coroutine.rs b/compiler/rustc_mir_transform/src/coroutine.rs
index 3008016863e..a3e6e5a5a91 100644
--- a/compiler/rustc_mir_transform/src/coroutine.rs
+++ b/compiler/rustc_mir_transform/src/coroutine.rs
@@ -70,6 +70,7 @@ use rustc_middle::mir::*;
 use rustc_middle::ty::CoroutineArgs;
 use rustc_middle::ty::InstanceDef;
 use rustc_middle::ty::{self, Ty, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_mir_dataflow::impls::{
     MaybeBorrowedLocals, MaybeLiveLocals, MaybeRequiresStorage, MaybeStorageLive,
 };
diff --git a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
index 3d6c1a95204..10c0567eb4b 100644
--- a/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
+++ b/compiler/rustc_mir_transform/src/coroutine/by_move_body.rs
@@ -71,6 +71,7 @@
 
 use rustc_data_structures::unord::UnordMap;
 use rustc_hir as hir;
+use rustc_middle::bug;
 use rustc_middle::hir::place::{Projection, ProjectionKind};
 use rustc_middle::mir::visit::MutVisitor;
 use rustc_middle::mir::{self, dump_mir, MirPass};
diff --git a/compiler/rustc_mir_transform/src/coverage/counters.rs b/compiler/rustc_mir_transform/src/coverage/counters.rs
index 6e73a476421..b98554ec00f 100644
--- a/compiler/rustc_mir_transform/src/coverage/counters.rs
+++ b/compiler/rustc_mir_transform/src/coverage/counters.rs
@@ -4,6 +4,7 @@ use rustc_data_structures::captures::Captures;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::graph::DirectedGraph;
 use rustc_index::IndexVec;
+use rustc_middle::bug;
 use rustc_middle::mir::coverage::{CounterId, CovTerm, Expression, ExpressionId, Op};
 
 use crate::coverage::graph::{BasicCoverageBlock, CoverageGraph, TraverseCoverageGraphWithLoops};
diff --git a/compiler/rustc_mir_transform/src/coverage/graph.rs b/compiler/rustc_mir_transform/src/coverage/graph.rs
index 1895735ab35..fd74a2a97e2 100644
--- a/compiler/rustc_mir_transform/src/coverage/graph.rs
+++ b/compiler/rustc_mir_transform/src/coverage/graph.rs
@@ -4,6 +4,7 @@ use rustc_data_structures::graph::dominators::{self, Dominators};
 use rustc_data_structures::graph::{self, DirectedGraph, StartNode};
 use rustc_index::bit_set::BitSet;
 use rustc_index::IndexVec;
+use rustc_middle::bug;
 use rustc_middle::mir::{self, BasicBlock, Terminator, TerminatorKind};
 
 use std::cmp::Ordering;
diff --git a/compiler/rustc_mir_transform/src/coverage/spans.rs b/compiler/rustc_mir_transform/src/coverage/spans.rs
index a0570c45f96..f2f76ac70c2 100644
--- a/compiler/rustc_mir_transform/src/coverage/spans.rs
+++ b/compiler/rustc_mir_transform/src/coverage/spans.rs
@@ -1,3 +1,4 @@
+use rustc_middle::bug;
 use rustc_middle::mir;
 use rustc_span::{BytePos, Span};
 
diff --git a/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs b/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs
index 4ce37b5defc..d1727a94a35 100644
--- a/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs
+++ b/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs
@@ -1,5 +1,6 @@
 use rustc_data_structures::captures::Captures;
 use rustc_data_structures::fx::FxHashSet;
+use rustc_middle::bug;
 use rustc_middle::mir::coverage::CoverageKind;
 use rustc_middle::mir::{
     self, AggregateKind, FakeReadCause, Rvalue, Statement, StatementKind, Terminator,
diff --git a/compiler/rustc_mir_transform/src/coverage/tests.rs b/compiler/rustc_mir_transform/src/coverage/tests.rs
index cf1a2b399f9..ca64688e6b8 100644
--- a/compiler/rustc_mir_transform/src/coverage/tests.rs
+++ b/compiler/rustc_mir_transform/src/coverage/tests.rs
@@ -30,6 +30,7 @@ use super::graph::{self, BasicCoverageBlock};
 use itertools::Itertools;
 use rustc_data_structures::graph::{DirectedGraph, Successors};
 use rustc_index::{Idx, IndexVec};
+use rustc_middle::bug;
 use rustc_middle::mir::*;
 use rustc_middle::ty;
 use rustc_span::{BytePos, Pos, Span, DUMMY_SP};
diff --git a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs
index 3019b275fb2..a42d64f86be 100644
--- a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs
+++ b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs
@@ -6,6 +6,7 @@ use rustc_const_eval::const_eval::{throw_machine_stop_str, DummyMachine};
 use rustc_const_eval::interpret::{ImmTy, Immediate, InterpCx, OpTy, PlaceTy, Projectable};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir::def::DefKind;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::{InterpResult, Scalar};
 use rustc_middle::mir::visit::{MutVisitor, PlaceContext, Visitor};
 use rustc_middle::mir::*;
diff --git a/compiler/rustc_mir_transform/src/dead_store_elimination.rs b/compiler/rustc_mir_transform/src/dead_store_elimination.rs
index e6317e5469c..08dba1de500 100644
--- a/compiler/rustc_mir_transform/src/dead_store_elimination.rs
+++ b/compiler/rustc_mir_transform/src/dead_store_elimination.rs
@@ -13,6 +13,7 @@
 //!
 
 use crate::util::is_within_packed;
+use rustc_middle::bug;
 use rustc_middle::mir::visit::Visitor;
 use rustc_middle::mir::*;
 use rustc_middle::ty::TyCtxt;
diff --git a/compiler/rustc_mir_transform/src/dest_prop.rs b/compiler/rustc_mir_transform/src/dest_prop.rs
index 10fea09531a..1bc383fccc7 100644
--- a/compiler/rustc_mir_transform/src/dest_prop.rs
+++ b/compiler/rustc_mir_transform/src/dest_prop.rs
@@ -135,6 +135,7 @@ use crate::MirPass;
 use rustc_data_structures::fx::{FxIndexMap, IndexEntry, IndexOccupiedEntry};
 use rustc_index::bit_set::BitSet;
 use rustc_index::interval::SparseIntervalMatrix;
+use rustc_middle::bug;
 use rustc_middle::mir::visit::{MutVisitor, PlaceContext, Visitor};
 use rustc_middle::mir::HasLocalDecls;
 use rustc_middle::mir::{dump_mir, PassWhere};
diff --git a/compiler/rustc_mir_transform/src/elaborate_box_derefs.rs b/compiler/rustc_mir_transform/src/elaborate_box_derefs.rs
index 318674f24e7..d955b96d06a 100644
--- a/compiler/rustc_mir_transform/src/elaborate_box_derefs.rs
+++ b/compiler/rustc_mir_transform/src/elaborate_box_derefs.rs
@@ -6,6 +6,7 @@ use rustc_hir::def_id::DefId;
 use rustc_middle::mir::patch::MirPatch;
 use rustc_middle::mir::visit::MutVisitor;
 use rustc_middle::mir::*;
+use rustc_middle::span_bug;
 use rustc_middle::ty::{Ty, TyCtxt};
 use rustc_target::abi::FieldIdx;
 
diff --git a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs
index 0970c4de19f..5e3cd853675 100644
--- a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs
+++ b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs
@@ -4,6 +4,7 @@ use rustc_middle::query::LocalCrate;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::layout;
 use rustc_middle::ty::{self, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_session::lint::builtin::FFI_UNWIND_CALLS;
 use rustc_target::spec::abi::Abi;
 use rustc_target::spec::PanicStrategy;
diff --git a/compiler/rustc_mir_transform/src/gvn.rs b/compiler/rustc_mir_transform/src/gvn.rs
index 342d1a1cd5b..123166a764d 100644
--- a/compiler/rustc_mir_transform/src/gvn.rs
+++ b/compiler/rustc_mir_transform/src/gvn.rs
@@ -91,6 +91,7 @@ use rustc_hir::def::DefKind;
 use rustc_index::bit_set::BitSet;
 use rustc_index::newtype_index;
 use rustc_index::IndexVec;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::GlobalAlloc;
 use rustc_middle::mir::visit::*;
 use rustc_middle::mir::*;
diff --git a/compiler/rustc_mir_transform/src/inline.rs b/compiler/rustc_mir_transform/src/inline.rs
index 7a3b08f82f6..401056cd496 100644
--- a/compiler/rustc_mir_transform/src/inline.rs
+++ b/compiler/rustc_mir_transform/src/inline.rs
@@ -6,6 +6,7 @@ use rustc_hir::def::DefKind;
 use rustc_hir::def_id::DefId;
 use rustc_index::bit_set::BitSet;
 use rustc_index::Idx;
+use rustc_middle::bug;
 use rustc_middle::middle::codegen_fn_attrs::{CodegenFnAttrFlags, CodegenFnAttrs};
 use rustc_middle::mir::visit::*;
 use rustc_middle::mir::*;
diff --git a/compiler/rustc_mir_transform/src/instsimplify.rs b/compiler/rustc_mir_transform/src/instsimplify.rs
index fd768cc96ae..f1adeab3f88 100644
--- a/compiler/rustc_mir_transform/src/instsimplify.rs
+++ b/compiler/rustc_mir_transform/src/instsimplify.rs
@@ -2,6 +2,7 @@
 
 use crate::simplify::simplify_duplicate_switch_targets;
 use rustc_ast::attr;
+use rustc_middle::bug;
 use rustc_middle::mir::*;
 use rustc_middle::ty::layout;
 use rustc_middle::ty::layout::ValidityRequirement;
diff --git a/compiler/rustc_mir_transform/src/jump_threading.rs b/compiler/rustc_mir_transform/src/jump_threading.rs
index a458297210d..ae807655b68 100644
--- a/compiler/rustc_mir_transform/src/jump_threading.rs
+++ b/compiler/rustc_mir_transform/src/jump_threading.rs
@@ -41,6 +41,7 @@ use rustc_const_eval::interpret::{ImmTy, Immediate, InterpCx, OpTy, Projectable}
 use rustc_data_structures::fx::FxHashSet;
 use rustc_index::bit_set::BitSet;
 use rustc_index::IndexVec;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::Scalar;
 use rustc_middle::mir::visit::Visitor;
 use rustc_middle::mir::*;
diff --git a/compiler/rustc_mir_transform/src/known_panics_lint.rs b/compiler/rustc_mir_transform/src/known_panics_lint.rs
index 90c1c7ba63b..d0a5a6cada8 100644
--- a/compiler/rustc_mir_transform/src/known_panics_lint.rs
+++ b/compiler/rustc_mir_transform/src/known_panics_lint.rs
@@ -14,6 +14,7 @@ use rustc_data_structures::fx::FxHashSet;
 use rustc_hir::def::DefKind;
 use rustc_hir::HirId;
 use rustc_index::{bit_set::BitSet, IndexVec};
+use rustc_middle::bug;
 use rustc_middle::mir::visit::{MutatingUseContext, NonMutatingUseContext, PlaceContext, Visitor};
 use rustc_middle::mir::*;
 use rustc_middle::ty::layout::{LayoutError, LayoutOf, LayoutOfHelpers, TyAndLayout};
diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs
index e69c5da757e..9af48f0bad2 100644
--- a/compiler/rustc_mir_transform/src/lib.rs
+++ b/compiler/rustc_mir_transform/src/lib.rs
@@ -16,8 +16,6 @@
 
 #[macro_use]
 extern crate tracing;
-#[macro_use]
-extern crate rustc_middle;
 
 use hir::ConstContext;
 use required_consts::RequiredConstsVisitor;
@@ -38,6 +36,7 @@ use rustc_middle::mir::{
 use rustc_middle::query;
 use rustc_middle::ty::{self, TyCtxt, TypeVisitableExt};
 use rustc_middle::util::Providers;
+use rustc_middle::{bug, span_bug};
 use rustc_span::{source_map::Spanned, sym, DUMMY_SP};
 use rustc_trait_selection::traits;
 
diff --git a/compiler/rustc_mir_transform/src/lower_intrinsics.rs b/compiler/rustc_mir_transform/src/lower_intrinsics.rs
index da63fcf23d9..43d8c45bb2d 100644
--- a/compiler/rustc_mir_transform/src/lower_intrinsics.rs
+++ b/compiler/rustc_mir_transform/src/lower_intrinsics.rs
@@ -2,6 +2,7 @@
 
 use rustc_middle::mir::*;
 use rustc_middle::ty::{self, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::sym;
 
 pub struct LowerIntrinsics;
diff --git a/compiler/rustc_mir_transform/src/nrvo.rs b/compiler/rustc_mir_transform/src/nrvo.rs
index 232c290e0fb..885dbd5f339 100644
--- a/compiler/rustc_mir_transform/src/nrvo.rs
+++ b/compiler/rustc_mir_transform/src/nrvo.rs
@@ -2,6 +2,7 @@
 
 use rustc_hir::Mutability;
 use rustc_index::bit_set::BitSet;
+use rustc_middle::bug;
 use rustc_middle::mir::visit::{MutVisitor, NonUseContext, PlaceContext, Visitor};
 use rustc_middle::mir::{self, BasicBlock, Local, Location};
 use rustc_middle::ty::TyCtxt;
diff --git a/compiler/rustc_mir_transform/src/promote_consts.rs b/compiler/rustc_mir_transform/src/promote_consts.rs
index 689a547689a..b3116c002d3 100644
--- a/compiler/rustc_mir_transform/src/promote_consts.rs
+++ b/compiler/rustc_mir_transform/src/promote_consts.rs
@@ -20,6 +20,7 @@ use rustc_middle::mir::visit::{MutVisitor, MutatingUseContext, PlaceContext, Vis
 use rustc_middle::mir::*;
 use rustc_middle::ty::GenericArgs;
 use rustc_middle::ty::{self, List, Ty, TyCtxt, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::Span;
 
 use rustc_index::{Idx, IndexSlice, IndexVec};
diff --git a/compiler/rustc_mir_transform/src/ref_prop.rs b/compiler/rustc_mir_transform/src/ref_prop.rs
index 044ae32c1d4..801ef14c9cd 100644
--- a/compiler/rustc_mir_transform/src/ref_prop.rs
+++ b/compiler/rustc_mir_transform/src/ref_prop.rs
@@ -1,6 +1,7 @@
 use rustc_data_structures::fx::FxHashSet;
 use rustc_index::bit_set::BitSet;
 use rustc_index::IndexVec;
+use rustc_middle::bug;
 use rustc_middle::mir::visit::*;
 use rustc_middle::mir::*;
 use rustc_middle::ty::TyCtxt;
diff --git a/compiler/rustc_mir_transform/src/shim.rs b/compiler/rustc_mir_transform/src/shim.rs
index 1c85a604053..cd8a43d6e6c 100644
--- a/compiler/rustc_mir_transform/src/shim.rs
+++ b/compiler/rustc_mir_transform/src/shim.rs
@@ -5,6 +5,7 @@ use rustc_middle::mir::*;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::GenericArgs;
 use rustc_middle::ty::{self, CoroutineArgs, EarlyBinder, Ty, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_target::abi::{FieldIdx, VariantIdx, FIRST_VARIANT};
 
 use rustc_index::{Idx, IndexVec};
diff --git a/compiler/rustc_mir_transform/src/shim/async_destructor_ctor.rs b/compiler/rustc_mir_transform/src/shim/async_destructor_ctor.rs
index 80eadb9abdc..0d023c62683 100644
--- a/compiler/rustc_mir_transform/src/shim/async_destructor_ctor.rs
+++ b/compiler/rustc_mir_transform/src/shim/async_destructor_ctor.rs
@@ -14,6 +14,7 @@ use rustc_middle::mir::{
 use rustc_middle::ty::adjustment::PointerCoercion;
 use rustc_middle::ty::util::Discr;
 use rustc_middle::ty::{self, Ty, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::source_map::respan;
 use rustc_span::{Span, Symbol};
 use rustc_target::abi::{FieldIdx, VariantIdx};
diff --git a/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs b/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs
index 1a8cfc41178..03907babf2b 100644
--- a/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs
+++ b/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs
@@ -2,6 +2,7 @@ use std::iter;
 
 use super::MirPass;
 use rustc_middle::{
+    bug,
     mir::{
         interpret::Scalar, BasicBlock, BinOp, Body, Operand, Place, Rvalue, Statement,
         StatementKind, SwitchTargets, TerminatorKind,
diff --git a/compiler/rustc_mir_transform/src/sroa.rs b/compiler/rustc_mir_transform/src/sroa.rs
index 06d5e17fdd6..cdf3305b560 100644
--- a/compiler/rustc_mir_transform/src/sroa.rs
+++ b/compiler/rustc_mir_transform/src/sroa.rs
@@ -1,6 +1,7 @@
 use rustc_data_structures::flat_map_in_place::FlatMapInPlace;
 use rustc_index::bit_set::{BitSet, GrowableBitSet};
 use rustc_index::IndexVec;
+use rustc_middle::bug;
 use rustc_middle::mir::patch::MirPatch;
 use rustc_middle::mir::visit::*;
 use rustc_middle::mir::*;
diff --git a/compiler/rustc_mir_transform/src/ssa.rs b/compiler/rustc_mir_transform/src/ssa.rs
index 55fed7d9da2..fb870425f6e 100644
--- a/compiler/rustc_mir_transform/src/ssa.rs
+++ b/compiler/rustc_mir_transform/src/ssa.rs
@@ -9,6 +9,7 @@
 use rustc_data_structures::graph::dominators::Dominators;
 use rustc_index::bit_set::BitSet;
 use rustc_index::{IndexSlice, IndexVec};
+use rustc_middle::bug;
 use rustc_middle::middle::resolve_bound_vars::Set1;
 use rustc_middle::mir::visit::*;
 use rustc_middle::mir::*;
diff --git a/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs b/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs
index 66b6235eb93..1404a45f4d2 100644
--- a/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs
+++ b/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs
@@ -2,6 +2,7 @@
 
 use crate::MirPass;
 use rustc_data_structures::fx::FxHashSet;
+use rustc_middle::bug;
 use rustc_middle::mir::patch::MirPatch;
 use rustc_middle::mir::{
     BasicBlock, BasicBlockData, BasicBlocks, Body, Local, Operand, Rvalue, StatementKind,
diff --git a/compiler/rustc_mir_transform/src/unreachable_prop.rs b/compiler/rustc_mir_transform/src/unreachable_prop.rs
index 8ad7bc394c5..a6c3c3b189e 100644
--- a/compiler/rustc_mir_transform/src/unreachable_prop.rs
+++ b/compiler/rustc_mir_transform/src/unreachable_prop.rs
@@ -3,6 +3,7 @@
 //! post-order traversal of the blocks.
 
 use rustc_data_structures::fx::FxHashSet;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::Scalar;
 use rustc_middle::mir::patch::MirPatch;
 use rustc_middle::mir::*;
diff --git a/compiler/rustc_query_impl/src/lib.rs b/compiler/rustc_query_impl/src/lib.rs
index 914481d712e..85f55553af3 100644
--- a/compiler/rustc_query_impl/src/lib.rs
+++ b/compiler/rustc_query_impl/src/lib.rs
@@ -8,9 +8,6 @@
 #![allow(rustc::potential_query_instability, unused_parens)]
 #![allow(internal_features)]
 
-#[macro_use]
-extern crate rustc_middle;
-
 use crate::plumbing::{__rust_begin_short_backtrace, encode_all_query_results, try_mark_green};
 use crate::profiling_support::QueryKeyStringCache;
 use field_offset::offset_of;
@@ -222,4 +219,4 @@ pub fn query_system<'tcx>(
     }
 }
 
-rustc_query_append! { define_queries! }
+rustc_middle::rustc_query_append! { define_queries! }
diff --git a/compiler/rustc_query_impl/src/plumbing.rs b/compiler/rustc_query_impl/src/plumbing.rs
index a7696b1fbaf..86531bd9590 100644
--- a/compiler/rustc_query_impl/src/plumbing.rs
+++ b/compiler/rustc_query_impl/src/plumbing.rs
@@ -7,8 +7,8 @@ use rustc_data_structures::stable_hasher::{Hash64, HashStable, StableHasher};
 use rustc_data_structures::sync::Lock;
 use rustc_data_structures::unord::UnordMap;
 use rustc_errors::DiagInner;
-
 use rustc_index::Idx;
+use rustc_middle::bug;
 use rustc_middle::dep_graph::dep_kinds;
 use rustc_middle::dep_graph::{
     self, DepContext, DepKind, DepKindStruct, DepNode, DepNodeIndex, SerializedDepNodeIndex,
@@ -781,6 +781,7 @@ macro_rules! define_queries {
         #[allow(nonstandard_style)]
         mod query_callbacks {
             use super::*;
+            use rustc_middle::bug;
             use rustc_query_system::dep_graph::FingerprintStyle;
 
             // We use this for most things when incr. comp. is turned off.
@@ -849,7 +850,7 @@ macro_rules! define_queries {
         }
 
         pub fn query_callbacks<'tcx>(arena: &'tcx Arena<'tcx>) -> &'tcx [DepKindStruct<'tcx>] {
-            arena.alloc_from_iter(make_dep_kind_array!(query_callbacks))
+            arena.alloc_from_iter(rustc_middle::make_dep_kind_array!(query_callbacks))
         }
     }
 }
diff --git a/compiler/rustc_trait_selection/src/lib.rs b/compiler/rustc_trait_selection/src/lib.rs
index f1f03b810a9..521e4ef0c9e 100644
--- a/compiler/rustc_trait_selection/src/lib.rs
+++ b/compiler/rustc_trait_selection/src/lib.rs
@@ -30,8 +30,6 @@
 
 #[macro_use]
 extern crate tracing;
-#[macro_use]
-extern crate rustc_middle;
 
 pub mod errors;
 pub mod infer;
diff --git a/compiler/rustc_trait_selection/src/solve/assembly/mod.rs b/compiler/rustc_trait_selection/src/solve/assembly/mod.rs
index 938bd80b9eb..9a027d7f937 100644
--- a/compiler/rustc_trait_selection/src/solve/assembly/mod.rs
+++ b/compiler/rustc_trait_selection/src/solve/assembly/mod.rs
@@ -4,6 +4,7 @@ use crate::solve::GoalSource;
 use crate::solve::{inspect, EvalCtxt, SolverMode};
 use rustc_hir::def_id::DefId;
 use rustc_infer::traits::query::NoSolution;
+use rustc_middle::bug;
 use rustc_middle::traits::solve::inspect::ProbeKind;
 use rustc_middle::traits::solve::{
     CandidateSource, CanonicalResponse, Certainty, Goal, MaybeCause, QueryResult,
diff --git a/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs b/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs
index eeaef028cdb..f1115c3504e 100644
--- a/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs
+++ b/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs
@@ -5,6 +5,7 @@ use rustc_hir::LangItem;
 use rustc_hir::{def_id::DefId, Movability, Mutability};
 use rustc_infer::traits::query::NoSolution;
 use rustc_macros::{TypeFoldable, TypeVisitable};
+use rustc_middle::bug;
 use rustc_middle::traits::solve::Goal;
 use rustc_middle::ty::{
     self, ToPredicate, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperFoldable,
diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs
index d5176dc321c..2058650f288 100644
--- a/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs
+++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs
@@ -22,6 +22,7 @@ use rustc_infer::infer::resolve::EagerResolver;
 use rustc_infer::infer::RegionVariableOrigin;
 use rustc_infer::infer::{InferCtxt, InferOk};
 use rustc_infer::traits::solve::NestedNormalizationGoals;
+use rustc_middle::bug;
 use rustc_middle::infer::canonical::Canonical;
 use rustc_middle::traits::query::NoSolution;
 use rustc_middle::traits::solve::{
diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs
index 8614c17cabf..144197b0bec 100644
--- a/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs
+++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs
@@ -9,6 +9,7 @@ use rustc_infer::traits::query::NoSolution;
 use rustc_infer::traits::solve::{MaybeCause, NestedNormalizationGoals};
 use rustc_infer::traits::ObligationCause;
 use rustc_macros::{extension, HashStable};
+use rustc_middle::bug;
 use rustc_middle::infer::canonical::CanonicalVarInfos;
 use rustc_middle::traits::solve::inspect;
 use rustc_middle::traits::solve::{
diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt/select.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt/select.rs
index 7efc951135b..6fda5f4af25 100644
--- a/compiler/rustc_trait_selection/src/solve/eval_ctxt/select.rs
+++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt/select.rs
@@ -8,6 +8,7 @@ use rustc_infer::traits::{
     PolyTraitObligation, Selection, SelectionError, SelectionResult,
 };
 use rustc_macros::extension;
+use rustc_middle::{bug, span_bug};
 use rustc_span::Span;
 
 use crate::solve::inspect::{self, ProofTreeInferCtxtExt};
diff --git a/compiler/rustc_trait_selection/src/solve/fulfill.rs b/compiler/rustc_trait_selection/src/solve/fulfill.rs
index 586d2095d9c..3323f1bbf39 100644
--- a/compiler/rustc_trait_selection/src/solve/fulfill.rs
+++ b/compiler/rustc_trait_selection/src/solve/fulfill.rs
@@ -9,6 +9,7 @@ use rustc_infer::traits::{
     self, FulfillmentError, FulfillmentErrorCode, MismatchedProjectionTypes, Obligation,
     ObligationCause, ObligationCauseCode, PredicateObligation, SelectionError, TraitEngine,
 };
+use rustc_middle::bug;
 use rustc_middle::ty::error::{ExpectedFound, TypeError};
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_span::symbol::sym;
diff --git a/compiler/rustc_trait_selection/src/solve/inspect/build.rs b/compiler/rustc_trait_selection/src/solve/inspect/build.rs
index 3c5505055a4..9dd681f09e7 100644
--- a/compiler/rustc_trait_selection/src/solve/inspect/build.rs
+++ b/compiler/rustc_trait_selection/src/solve/inspect/build.rs
@@ -6,6 +6,7 @@
 use std::mem;
 
 use rustc_infer::infer::InferCtxt;
+use rustc_middle::bug;
 use rustc_middle::infer::canonical::CanonicalVarValues;
 use rustc_middle::traits::query::NoSolution;
 use rustc_middle::traits::solve::{
diff --git a/compiler/rustc_trait_selection/src/solve/mod.rs b/compiler/rustc_trait_selection/src/solve/mod.rs
index 80ae4b6022d..6c912db975a 100644
--- a/compiler/rustc_trait_selection/src/solve/mod.rs
+++ b/compiler/rustc_trait_selection/src/solve/mod.rs
@@ -17,6 +17,7 @@ use rustc_hir::def_id::DefId;
 use rustc_infer::infer::canonical::{Canonical, CanonicalVarValues};
 use rustc_infer::traits::query::NoSolution;
 use rustc_macros::extension;
+use rustc_middle::bug;
 use rustc_middle::infer::canonical::CanonicalVarInfos;
 use rustc_middle::traits::solve::{
     CanonicalResponse, Certainty, ExternalConstraintsData, Goal, GoalSource, QueryResult, Response,
diff --git a/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs b/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs
index 8d5c5d2a063..906cf149750 100644
--- a/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs
+++ b/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs
@@ -17,6 +17,7 @@ use rustc_middle::ty::fast_reject::{DeepRejectCtxt, TreatParams};
 use rustc_middle::ty::NormalizesTo;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_middle::ty::{ToPredicate, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::{sym, ErrorGuaranteed, DUMMY_SP};
 
 mod anon_const;
diff --git a/compiler/rustc_trait_selection/src/solve/trait_goals.rs b/compiler/rustc_trait_selection/src/solve/trait_goals.rs
index 2f1b7d60df3..1cafa970b68 100644
--- a/compiler/rustc_trait_selection/src/solve/trait_goals.rs
+++ b/compiler/rustc_trait_selection/src/solve/trait_goals.rs
@@ -10,6 +10,7 @@ use rustc_hir::def_id::DefId;
 use rustc_hir::{LangItem, Movability};
 use rustc_infer::traits::query::NoSolution;
 use rustc_infer::traits::solve::MaybeCause;
+use rustc_middle::bug;
 use rustc_middle::traits::solve::inspect::ProbeKind;
 use rustc_middle::traits::solve::{CandidateSource, Certainty, Goal, QueryResult};
 use rustc_middle::traits::{BuiltinImplSource, Reveal};
diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs
index 59725ce9de0..2cc972cb98e 100644
--- a/compiler/rustc_trait_selection/src/traits/coherence.rs
+++ b/compiler/rustc_trait_selection/src/traits/coherence.rs
@@ -20,6 +20,7 @@ use rustc_hir::def::DefKind;
 use rustc_hir::def_id::DefId;
 use rustc_infer::infer::{DefineOpaqueTypes, InferCtxt, TyCtxtInferExt};
 use rustc_infer::traits::{util, FulfillmentErrorCode};
+use rustc_middle::bug;
 use rustc_middle::traits::query::NoSolution;
 use rustc_middle::traits::solve::{CandidateSource, Certainty, Goal};
 use rustc_middle::traits::specialization_graph::OverlapMode;
diff --git a/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs b/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
index a8be5627fed..8348482386f 100644
--- a/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
+++ b/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs
@@ -11,6 +11,7 @@
 
 use rustc_hir::def::DefKind;
 use rustc_infer::infer::InferCtxt;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::ErrorHandled;
 use rustc_middle::traits::ObligationCause;
 use rustc_middle::ty::abstract_const::NotConstEvaluatable;
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs
index 040ce450aaf..7fc94b31b3b 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs
@@ -10,6 +10,7 @@ use rustc_errors::{codes::*, struct_span_code_err, ErrorGuaranteed};
 use rustc_hir as hir;
 use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_macros::{extension, LintDiagnostic};
+use rustc_middle::bug;
 use rustc_middle::ty::print::PrintTraitRefExt as _;
 use rustc_middle::ty::GenericArgsRef;
 use rustc_middle::ty::{self, GenericParamDefKind, TyCtxt};
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
index ea1752a6e98..f1088626f5b 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
@@ -34,6 +34,7 @@ use rustc_middle::ty::{
     InferTy, IsSuggestable, ToPredicate, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperFoldable,
     TypeVisitableExt, TypeckResults,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::symbol::{kw, sym, Ident, Symbol};
 use rustc_span::{BytePos, DesugaringKind, ExpnKind, MacroKind, Span, DUMMY_SP};
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs
index 08ffe37b8b4..4092022d531 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs
@@ -45,6 +45,7 @@ use rustc_middle::ty::{
     self, SubtypePredicate, ToPolyTraitRef, ToPredicate, TraitRef, Ty, TyCtxt, TypeFoldable,
     TypeVisitable, TypeVisitableExt,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_session::config::DumpSolverProofTree;
 use rustc_session::Limit;
 use rustc_span::def_id::LOCAL_CRATE;
diff --git a/compiler/rustc_trait_selection/src/traits/fulfill.rs b/compiler/rustc_trait_selection/src/traits/fulfill.rs
index e3497c646db..bb4067804aa 100644
--- a/compiler/rustc_trait_selection/src/traits/fulfill.rs
+++ b/compiler/rustc_trait_selection/src/traits/fulfill.rs
@@ -8,6 +8,7 @@ use rustc_data_structures::obligation_forest::{ObligationForest, ObligationProce
 use rustc_infer::infer::DefineOpaqueTypes;
 use rustc_infer::traits::ProjectionCacheKey;
 use rustc_infer::traits::{PolyTraitObligation, SelectionError, TraitEngine};
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::ErrorHandled;
 use rustc_middle::ty::abstract_const::NotConstEvaluatable;
 use rustc_middle::ty::error::{ExpectedFound, TypeError};
diff --git a/compiler/rustc_trait_selection/src/traits/mod.rs b/compiler/rustc_trait_selection/src/traits/mod.rs
index 56f8b4b9cdb..4b42496c2e2 100644
--- a/compiler/rustc_trait_selection/src/traits/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/mod.rs
@@ -31,6 +31,7 @@ use crate::traits::error_reporting::TypeErrCtxtExt as _;
 use crate::traits::query::evaluate_obligation::InferCtxtExt as _;
 use rustc_errors::ErrorGuaranteed;
 use rustc_middle::query::Providers;
+use rustc_middle::span_bug;
 use rustc_middle::ty::fold::TypeFoldable;
 use rustc_middle::ty::visit::{TypeVisitable, TypeVisitableExt};
 use rustc_middle::ty::{self, ToPredicate, Ty, TyCtxt, TypeFolder, TypeSuperVisitable};
diff --git a/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs b/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs
index 1dd2ada3356..1dc2ebfaa7a 100644
--- a/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs
+++ b/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs
@@ -5,6 +5,7 @@ use rustc_infer::infer::resolve::OpportunisticRegionResolver;
 use rustc_infer::infer::InferOk;
 use rustc_macros::extension;
 use rustc_middle::infer::canonical::{OriginalQueryValues, QueryRegionConstraints};
+use rustc_middle::span_bug;
 use rustc_middle::ty::{self, ParamEnv, Ty, TypeFolder, TypeVisitableExt};
 use rustc_span::def_id::LocalDefId;
 
diff --git a/compiler/rustc_trait_selection/src/traits/project.rs b/compiler/rustc_trait_selection/src/traits/project.rs
index f092f42dacf..d2ffd13cba4 100644
--- a/compiler/rustc_trait_selection/src/traits/project.rs
+++ b/compiler/rustc_trait_selection/src/traits/project.rs
@@ -17,6 +17,7 @@ use rustc_infer::traits::ObligationCauseCode;
 use rustc_middle::traits::BuiltinImplSource;
 use rustc_middle::traits::ImplSource;
 use rustc_middle::traits::ImplSourceUserDefinedData;
+use rustc_middle::{bug, span_bug};
 
 use crate::errors::InherentProjectionNormalizationOverflow;
 use crate::infer::{BoundRegionConversionTime, InferOk};
diff --git a/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs b/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs
index 87d240cf8ac..692feee7395 100644
--- a/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs
+++ b/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs
@@ -1,4 +1,5 @@
 use rustc_macros::extension;
+use rustc_middle::span_bug;
 
 use crate::infer::canonical::OriginalQueryValues;
 use crate::infer::InferCtxt;
diff --git a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
index 40d206b92b8..a0260324da0 100644
--- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
@@ -16,6 +16,7 @@ use rustc_infer::traits::ObligationCause;
 use rustc_infer::traits::{Obligation, PolyTraitObligation, SelectionError};
 use rustc_middle::ty::fast_reject::{DeepRejectCtxt, TreatParams};
 use rustc_middle::ty::{self, ToPolyTraitRef, Ty, TypeVisitableExt};
+use rustc_middle::{bug, span_bug};
 
 use crate::traits;
 use crate::traits::query::evaluate_obligation::InferCtxtExt;
diff --git a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs
index 69d11b45e60..24c6951a014 100644
--- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs
@@ -17,6 +17,7 @@ use rustc_middle::ty::{
     self, GenericArgs, GenericArgsRef, GenericParamDefKind, ToPolyTraitRef, ToPredicate,
     TraitPredicate, Ty, TyCtxt,
 };
+use rustc_middle::{bug, span_bug};
 use rustc_span::def_id::DefId;
 
 use crate::traits::normalize::{normalize_with_depth, normalize_with_depth_to};
diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs
index 7aa2aabed7f..3cf47e0f98e 100644
--- a/compiler/rustc_trait_selection/src/traits/select/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs
@@ -36,6 +36,7 @@ use rustc_infer::infer::BoundRegionConversionTime;
 use rustc_infer::infer::BoundRegionConversionTime::HigherRankedType;
 use rustc_infer::infer::DefineOpaqueTypes;
 use rustc_infer::traits::TraitObligation;
+use rustc_middle::bug;
 use rustc_middle::dep_graph::dep_kinds;
 use rustc_middle::dep_graph::DepNodeIndex;
 use rustc_middle::mir::interpret::ErrorHandled;
diff --git a/compiler/rustc_trait_selection/src/traits/specialize/mod.rs b/compiler/rustc_trait_selection/src/traits/specialize/mod.rs
index fe3f66f3a3f..826bb706f48 100644
--- a/compiler/rustc_trait_selection/src/traits/specialize/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/specialize/mod.rs
@@ -23,6 +23,7 @@ use crate::traits::{
 use rustc_data_structures::fx::FxIndexSet;
 use rustc_errors::{codes::*, DelayDm, Diag, EmissionGuarantee};
 use rustc_hir::def_id::{DefId, LocalDefId};
+use rustc_middle::bug;
 use rustc_middle::ty::{self, ImplSubject, Ty, TyCtxt, TypeVisitableExt};
 use rustc_middle::ty::{GenericArgs, GenericArgsRef};
 use rustc_session::lint::builtin::COHERENCE_LEAK_CHECK;
diff --git a/compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs b/compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs
index b6c2fcb46eb..90f2c7ad213 100644
--- a/compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs
+++ b/compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs
@@ -4,6 +4,7 @@ use crate::traits;
 use rustc_errors::ErrorGuaranteed;
 use rustc_hir::def_id::DefId;
 use rustc_macros::extension;
+use rustc_middle::bug;
 use rustc_middle::ty::fast_reject::{self, SimplifiedType, TreatParams};
 use rustc_middle::ty::{self, TyCtxt, TypeVisitableExt};
 
diff --git a/compiler/rustc_trait_selection/src/traits/structural_match.rs b/compiler/rustc_trait_selection/src/traits/structural_match.rs
index 6778ac81aea..d4535db951e 100644
--- a/compiler/rustc_trait_selection/src/traits/structural_match.rs
+++ b/compiler/rustc_trait_selection/src/traits/structural_match.rs
@@ -1,5 +1,6 @@
 use rustc_data_structures::fx::FxHashSet;
 use rustc_hir as hir;
+use rustc_middle::bug;
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor};
 use std::ops::ControlFlow;
 
diff --git a/compiler/rustc_trait_selection/src/traits/util.rs b/compiler/rustc_trait_selection/src/traits/util.rs
index b2ba7854f18..83edddb9a96 100644
--- a/compiler/rustc_trait_selection/src/traits/util.rs
+++ b/compiler/rustc_trait_selection/src/traits/util.rs
@@ -6,6 +6,7 @@ use rustc_data_structures::fx::{FxHashSet, FxIndexMap};
 use rustc_errors::Diag;
 use rustc_hir::def_id::DefId;
 use rustc_infer::infer::{InferCtxt, InferOk};
+use rustc_middle::bug;
 use rustc_middle::ty::GenericArgsRef;
 use rustc_middle::ty::{self, ImplSubject, ToPredicate, Ty, TyCtxt, TypeVisitableExt};
 use rustc_middle::ty::{TypeFoldable, TypeFolder, TypeSuperFoldable};
diff --git a/compiler/rustc_trait_selection/src/traits/vtable.rs b/compiler/rustc_trait_selection/src/traits/vtable.rs
index 3f1ba80acd3..8fd9889b4ea 100644
--- a/compiler/rustc_trait_selection/src/traits/vtable.rs
+++ b/compiler/rustc_trait_selection/src/traits/vtable.rs
@@ -4,6 +4,7 @@ use rustc_hir::def_id::DefId;
 use rustc_hir::lang_items::LangItem;
 use rustc_infer::traits::util::PredicateSet;
 use rustc_infer::traits::ImplSource;
+use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::traits::BuiltinImplSource;
 use rustc_middle::ty::visit::TypeVisitableExt;
diff --git a/compiler/rustc_trait_selection/src/traits/wf.rs b/compiler/rustc_trait_selection/src/traits/wf.rs
index 562a82cc73d..31eae3926ee 100644
--- a/compiler/rustc_trait_selection/src/traits/wf.rs
+++ b/compiler/rustc_trait_selection/src/traits/wf.rs
@@ -3,6 +3,7 @@ use crate::traits;
 use rustc_hir as hir;
 use rustc_hir::lang_items::LangItem;
 use rustc_infer::traits::ObligationCauseCode;
+use rustc_middle::bug;
 use rustc_middle::ty::{
     self, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitableExt, TypeVisitor,
 };
diff --git a/compiler/rustc_ty_utils/src/abi.rs b/compiler/rustc_ty_utils/src/abi.rs
index c6b83628506..fd7e2fec389 100644
--- a/compiler/rustc_ty_utils/src/abi.rs
+++ b/compiler/rustc_ty_utils/src/abi.rs
@@ -1,5 +1,6 @@
 use rustc_hir as hir;
 use rustc_hir::lang_items::LangItem;
+use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::layout::{
     fn_can_unwind, FnAbiError, HasParamEnv, HasTyCtxt, LayoutCx, LayoutOf, TyAndLayout,
diff --git a/compiler/rustc_ty_utils/src/assoc.rs b/compiler/rustc_ty_utils/src/assoc.rs
index d3fe8291e03..4395eb57cd6 100644
--- a/compiler/rustc_ty_utils/src/assoc.rs
+++ b/compiler/rustc_ty_utils/src/assoc.rs
@@ -5,6 +5,7 @@ use rustc_hir::def_id::{DefId, DefIdMap, LocalDefId};
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_middle::query::Providers;
 use rustc_middle::ty::{self, ImplTraitInTraitData, TyCtxt};
+use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::kw;
 
 pub(crate) fn provide(providers: &mut Providers) {
diff --git a/compiler/rustc_ty_utils/src/consts.rs b/compiler/rustc_ty_utils/src/consts.rs
index acbcc3918b2..fec02f515ca 100644
--- a/compiler/rustc_ty_utils/src/consts.rs
+++ b/compiler/rustc_ty_utils/src/consts.rs
@@ -1,6 +1,7 @@
 use rustc_errors::ErrorGuaranteed;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::LocalDefId;
+use rustc_middle::bug;
 use rustc_middle::mir::interpret::{LitToConstError, LitToConstInput};
 use rustc_middle::query::Providers;
 use rustc_middle::thir::visit;
diff --git a/compiler/rustc_ty_utils/src/implied_bounds.rs b/compiler/rustc_ty_utils/src/implied_bounds.rs
index 862fb2e1663..e87058f9ba4 100644
--- a/compiler/rustc_ty_utils/src/implied_bounds.rs
+++ b/compiler/rustc_ty_utils/src/implied_bounds.rs
@@ -2,6 +2,7 @@ use rustc_data_structures::fx::FxHashMap;
 use rustc_hir as hir;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::LocalDefId;
+use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_span::Span;
diff --git a/compiler/rustc_ty_utils/src/instance.rs b/compiler/rustc_ty_utils/src/instance.rs
index d0aa4eb2e71..41f482d8a70 100644
--- a/compiler/rustc_ty_utils/src/instance.rs
+++ b/compiler/rustc_ty_utils/src/instance.rs
@@ -1,6 +1,7 @@
 use rustc_errors::ErrorGuaranteed;
 use rustc_hir::def_id::DefId;
 use rustc_infer::infer::TyCtxtInferExt;
+use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::traits::{BuiltinImplSource, CodegenObligationError};
 use rustc_middle::ty::GenericArgsRef;
diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs
index f78a28d16fd..1ef22497a8f 100644
--- a/compiler/rustc_ty_utils/src/layout.rs
+++ b/compiler/rustc_ty_utils/src/layout.rs
@@ -2,6 +2,7 @@ use hir::def_id::DefId;
 use rustc_hir as hir;
 use rustc_index::bit_set::BitSet;
 use rustc_index::{IndexSlice, IndexVec};
+use rustc_middle::bug;
 use rustc_middle::mir::{CoroutineLayout, CoroutineSavedLocal};
 use rustc_middle::query::Providers;
 use rustc_middle::ty::layout::{
diff --git a/compiler/rustc_ty_utils/src/layout_sanity_check.rs b/compiler/rustc_ty_utils/src/layout_sanity_check.rs
index 6332c614a90..ab7d1be226b 100644
--- a/compiler/rustc_ty_utils/src/layout_sanity_check.rs
+++ b/compiler/rustc_ty_utils/src/layout_sanity_check.rs
@@ -1,3 +1,4 @@
+use rustc_middle::bug;
 use rustc_middle::ty::{
     layout::{LayoutCx, TyAndLayout},
     TyCtxt,
diff --git a/compiler/rustc_ty_utils/src/lib.rs b/compiler/rustc_ty_utils/src/lib.rs
index fd392d11e83..e8c5c54d3a0 100644
--- a/compiler/rustc_ty_utils/src/lib.rs
+++ b/compiler/rustc_ty_utils/src/lib.rs
@@ -16,8 +16,6 @@
 #![feature(let_chains)]
 #![feature(never_type)]
 
-#[macro_use]
-extern crate rustc_middle;
 #[macro_use]
 extern crate tracing;
 
diff --git a/compiler/rustc_ty_utils/src/needs_drop.rs b/compiler/rustc_ty_utils/src/needs_drop.rs
index ee930a78e77..4e23fb30383 100644
--- a/compiler/rustc_ty_utils/src/needs_drop.rs
+++ b/compiler/rustc_ty_utils/src/needs_drop.rs
@@ -2,6 +2,7 @@
 
 use rustc_data_structures::fx::FxHashSet;
 use rustc_hir::def_id::DefId;
+use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::util::{needs_drop_components, AlwaysRequiresDrop};
 use rustc_middle::ty::GenericArgsRef;
diff --git a/compiler/rustc_ty_utils/src/opaque_types.rs b/compiler/rustc_ty_utils/src/opaque_types.rs
index d7d31a88c9b..be227ec8b9a 100644
--- a/compiler/rustc_ty_utils/src/opaque_types.rs
+++ b/compiler/rustc_ty_utils/src/opaque_types.rs
@@ -2,6 +2,7 @@ use rustc_data_structures::fx::FxHashSet;
 use rustc_hir::intravisit::Visitor;
 use rustc_hir::{def::DefKind, def_id::LocalDefId};
 use rustc_hir::{intravisit, CRATE_HIR_ID};
+use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::util::{CheckRegions, NotUniqueParam};
 use rustc_middle::ty::{self, Ty, TyCtxt};
diff --git a/compiler/rustc_ty_utils/src/representability.rs b/compiler/rustc_ty_utils/src/representability.rs
index 446f16b4125..0ffb7f62496 100644
--- a/compiler/rustc_ty_utils/src/representability.rs
+++ b/compiler/rustc_ty_utils/src/representability.rs
@@ -1,5 +1,6 @@
 use rustc_hir::def::DefKind;
 use rustc_index::bit_set::BitSet;
+use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::{self, Representability, Ty, TyCtxt};
 use rustc_span::def_id::LocalDefId;
diff --git a/compiler/rustc_ty_utils/src/sig_types.rs b/compiler/rustc_ty_utils/src/sig_types.rs
index 19c092c5ddf..2d8c78267d9 100644
--- a/compiler/rustc_ty_utils/src/sig_types.rs
+++ b/compiler/rustc_ty_utils/src/sig_types.rs
@@ -4,6 +4,7 @@
 use rustc_ast_ir::try_visit;
 use rustc_ast_ir::visit::VisitorResult;
 use rustc_hir::{def::DefKind, def_id::LocalDefId};
+use rustc_middle::span_bug;
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_span::Span;
 use rustc_type_ir::visit::TypeVisitable;
diff --git a/compiler/rustc_ty_utils/src/ty.rs b/compiler/rustc_ty_utils/src/ty.rs
index fa1085c7cd7..d98b46dfb93 100644
--- a/compiler/rustc_ty_utils/src/ty.rs
+++ b/compiler/rustc_ty_utils/src/ty.rs
@@ -3,6 +3,7 @@ use rustc_hir as hir;
 use rustc_hir::def::DefKind;
 use rustc_hir::LangItem;
 use rustc_index::bit_set::BitSet;
+use rustc_middle::bug;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::{self, EarlyBinder, Ty, TyCtxt, TypeVisitableExt, TypeVisitor};
 use rustc_middle::ty::{ToPredicate, TypeSuperVisitable, TypeVisitable};