Check drop is trivial before checking ty needs drop

compiler/rustc_const_eval/src/check_consts/qualifs.rs

@@ -175,6 +175,11 @@ impl Qualif for NeedsNonConstDrop {
             return false;
         }
 
+        // If this doesn't need drop at all, then don't select `~const Destruct`.
+        if !ty.needs_drop(cx.tcx, cx.typing_env) {
+            return false;
+        }
+
         // We check that the type is `~const Destruct` since that will verify that
         // the type is both `~const Drop` (if a drop impl exists for the adt), *and*
         // that the components of this type are also `~const Destruct`. This
@@ -203,7 +208,7 @@ impl Qualif for NeedsNonConstDrop {
         // in its value since:
         // 1. The destructor may have `~const` bounds which are not present on the type.
         //   Someone needs to check that those are satisfied.
-        //   While this could be done instead satisfied by checking that the `~const Drop`
+        //   While this could be instead satisfied by checking that the `~const Drop`
         //   impl holds (i.e. replicating part of the `in_any_value_of_ty` logic above),
         //   even in this case, we have another problem, which is,
         // 2. The destructor may *modify* the operand being dropped, so even if we

compiler/rustc_feature/src/unstable.rs

@@ -426,7 +426,7 @@ declare_features! (
     (unstable, const_async_blocks, "1.53.0", Some(85368)),
     /// Allows `const || {}` closures in const contexts.
     (incomplete, const_closures, "1.68.0", Some(106003)),
-    /// Uwu
+    /// Allows using `~const Destruct` bounds and calling drop impls in const contexts.
     (unstable, const_destruct, "CURRENT_RUSTC_VERSION", Some(133214)),
     /// Allows `for _ in _` loops in const contexts.
     (unstable, const_for, "1.56.0", Some(87575)),

compiler/rustc_middle/src/ty/context.rs

@@ -4,7 +4,7 @@
 
 pub mod tls;
 
-use std::assert_matches::assert_matches;
+use std::assert_matches::{assert_matches, debug_assert_matches};
 use std::borrow::Borrow;
 use std::cmp::Ordering;
 use std::hash::{Hash, Hasher};
@@ -377,14 +377,17 @@ impl<'tcx> Interner for TyCtxt<'tcx> {
     }
 
     fn impl_is_const(self, def_id: DefId) -> bool {
+        debug_assert_matches!(self.def_kind(def_id), DefKind::Impl { of_trait: true });
         self.is_conditionally_const(def_id)
     }
 
     fn fn_is_const(self, def_id: DefId) -> bool {
+        debug_assert_matches!(self.def_kind(def_id), DefKind::Fn | DefKind::AssocFn);
         self.is_conditionally_const(def_id)
     }
 
     fn alias_has_const_conditions(self, def_id: DefId) -> bool {
+        debug_assert_matches!(self.def_kind(def_id), DefKind::AssocTy | DefKind::OpaqueTy);
         self.is_conditionally_const(def_id)
     }
 

tests/ui/consts/const-block-const-bound.rs

@@ -1,7 +1,7 @@
 //@ known-bug: #103507
 
 #![allow(unused)]
-#![feature(const_trait_impl, negative_impls)]
+#![feature(const_trait_impl, negative_impls, const_destruct)]
 
 use std::marker::Destruct;
 

tests/ui/consts/const-block-const-bound.stderr

@@ -1,23 +1,3 @@
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/const-block-const-bound.rs:6:5
-   |
-LL | use std::marker::Destruct;
-   |     ^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/const-block-const-bound.rs:8:22
-   |
-LL | const fn f<T: ~const Destruct>(x: T) {}
-   |                      ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
 error: `~const` can only be applied to `#[const_trait]` traits
   --> $DIR/const-block-const-bound.rs:8:15
    |
@@ -40,7 +20,6 @@ LL | const fn f<T: ~const Destruct>(x: T) {}
    |                                |
    |                                the destructor for this type cannot be evaluated in constant functions
 
-error: aborting due to 5 previous errors
+error: aborting due to 3 previous errors
 
-Some errors have detailed explanations: E0493, E0658.
+For more information about this error, try `rustc --explain E0493`.
-For more information about an error, try `rustc --explain E0493`.

tests/ui/consts/fn_trait_refs.rs

@@ -5,6 +5,7 @@
 #![feature(unboxed_closures)]
 #![feature(const_trait_impl)]
 #![feature(const_cmp)]
+#![feature(const_destruct)]
 
 use std::marker::Destruct;
 

tests/ui/consts/fn_trait_refs.stderr

@@ -1,53 +1,3 @@
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/fn_trait_refs.rs:9:5
-   |
-LL | use std::marker::Destruct;
-   |     ^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/fn_trait_refs.rs:13:31
-   |
-LL |     T: ~const Fn<()> + ~const Destruct,
-   |                               ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/fn_trait_refs.rs:20:34
-   |
-LL |     T: ~const FnMut<()> + ~const Destruct,
-   |                                  ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/fn_trait_refs.rs:34:31
-   |
-LL |     T: ~const Fn<()> + ~const Destruct,
-   |                               ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/fn_trait_refs.rs:48:34
-   |
-LL |     T: ~const FnMut<()> + ~const Destruct,
-   |                                  ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
 error[E0635]: unknown feature `const_fn_trait_ref_impls`
   --> $DIR/fn_trait_refs.rs:3:12
    |
@@ -61,19 +11,19 @@ LL | #![feature(const_cmp)]
    |            ^^^^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:13:8
+  --> $DIR/fn_trait_refs.rs:14:8
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |        ^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:13:24
+  --> $DIR/fn_trait_refs.rs:14:24
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |                        ^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:13:8
+  --> $DIR/fn_trait_refs.rs:14:8
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |        ^^^^^^
@@ -81,7 +31,7 @@ LL |     T: ~const Fn<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:13:8
+  --> $DIR/fn_trait_refs.rs:14:8
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |        ^^^^^^
@@ -89,7 +39,7 @@ LL |     T: ~const Fn<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:13:24
+  --> $DIR/fn_trait_refs.rs:14:24
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |                        ^^^^^^
@@ -97,19 +47,19 @@ LL |     T: ~const Fn<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:20:8
+  --> $DIR/fn_trait_refs.rs:21:8
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |        ^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:20:27
+  --> $DIR/fn_trait_refs.rs:21:27
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |                           ^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:20:8
+  --> $DIR/fn_trait_refs.rs:21:8
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |        ^^^^^^
@@ -117,7 +67,7 @@ LL |     T: ~const FnMut<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:20:8
+  --> $DIR/fn_trait_refs.rs:21:8
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |        ^^^^^^
@@ -125,7 +75,7 @@ LL |     T: ~const FnMut<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:20:27
+  --> $DIR/fn_trait_refs.rs:21:27
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |                           ^^^^^^
@@ -133,13 +83,13 @@ LL |     T: ~const FnMut<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:27:8
+  --> $DIR/fn_trait_refs.rs:28:8
    |
 LL |     T: ~const FnOnce<()>,
    |        ^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:27:8
+  --> $DIR/fn_trait_refs.rs:28:8
    |
 LL |     T: ~const FnOnce<()>,
    |        ^^^^^^
@@ -147,7 +97,7 @@ LL |     T: ~const FnOnce<()>,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:27:8
+  --> $DIR/fn_trait_refs.rs:28:8
    |
 LL |     T: ~const FnOnce<()>,
    |        ^^^^^^
@@ -155,19 +105,19 @@ LL |     T: ~const FnOnce<()>,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:34:8
+  --> $DIR/fn_trait_refs.rs:35:8
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |        ^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:34:24
+  --> $DIR/fn_trait_refs.rs:35:24
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |                        ^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:34:8
+  --> $DIR/fn_trait_refs.rs:35:8
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |        ^^^^^^
@@ -175,7 +125,7 @@ LL |     T: ~const Fn<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:34:8
+  --> $DIR/fn_trait_refs.rs:35:8
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |        ^^^^^^
@@ -183,7 +133,7 @@ LL |     T: ~const Fn<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:34:24
+  --> $DIR/fn_trait_refs.rs:35:24
    |
 LL |     T: ~const Fn<()> + ~const Destruct,
    |                        ^^^^^^
@@ -191,19 +141,19 @@ LL |     T: ~const Fn<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:48:8
+  --> $DIR/fn_trait_refs.rs:49:8
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |        ^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:48:27
+  --> $DIR/fn_trait_refs.rs:49:27
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |                           ^^^^^^
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:48:8
+  --> $DIR/fn_trait_refs.rs:49:8
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |        ^^^^^^
@@ -211,7 +161,7 @@ LL |     T: ~const FnMut<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:48:8
+  --> $DIR/fn_trait_refs.rs:49:8
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |        ^^^^^^
@@ -219,7 +169,7 @@ LL |     T: ~const FnMut<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `~const` can only be applied to `#[const_trait]` traits
-  --> $DIR/fn_trait_refs.rs:48:27
+  --> $DIR/fn_trait_refs.rs:49:27
    |
 LL |     T: ~const FnMut<()> + ~const Destruct,
    |                           ^^^^^^
@@ -227,7 +177,7 @@ LL |     T: ~const FnMut<()> + ~const Destruct,
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error[E0015]: cannot call non-const operator in constants
-  --> $DIR/fn_trait_refs.rs:70:17
+  --> $DIR/fn_trait_refs.rs:71:17
    |
 LL |         assert!(test_one == (1, 1, 1));
    |                 ^^^^^^^^^^^^^^^^^^^^^
@@ -235,7 +185,7 @@ LL |         assert!(test_one == (1, 1, 1));
    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
 
 error[E0015]: cannot call non-const operator in constants
-  --> $DIR/fn_trait_refs.rs:73:17
+  --> $DIR/fn_trait_refs.rs:74:17
    |
 LL |         assert!(test_two == (2, 2));
    |                 ^^^^^^^^^^^^^^^^^^
@@ -243,7 +193,7 @@ LL |         assert!(test_two == (2, 2));
    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
 
 error[E0015]: cannot call non-const closure in constant functions
-  --> $DIR/fn_trait_refs.rs:15:5
+  --> $DIR/fn_trait_refs.rs:16:5
    |
 LL |     f()
    |     ^^^
@@ -255,7 +205,7 @@ LL |     T: ~const Fn<()> + ~const Destruct + ~const Fn(),
    |                                        +++++++++++++
 
 error[E0493]: destructor of `T` cannot be evaluated at compile-time
-  --> $DIR/fn_trait_refs.rs:11:23
+  --> $DIR/fn_trait_refs.rs:12:23
    |
 LL | const fn tester_fn<T>(f: T) -> T::Output
    |                       ^ the destructor for this type cannot be evaluated in constant functions
@@ -264,7 +214,7 @@ LL | }
    | - value is dropped here
 
 error[E0015]: cannot call non-const closure in constant functions
-  --> $DIR/fn_trait_refs.rs:22:5
+  --> $DIR/fn_trait_refs.rs:23:5
    |
 LL |     f()
    |     ^^^
@@ -276,7 +226,7 @@ LL |     T: ~const FnMut<()> + ~const Destruct + ~const FnMut(),
    |                                           ++++++++++++++++
 
 error[E0493]: destructor of `T` cannot be evaluated at compile-time
-  --> $DIR/fn_trait_refs.rs:18:27
+  --> $DIR/fn_trait_refs.rs:19:27
    |
 LL | const fn tester_fn_mut<T>(mut f: T) -> T::Output
    |                           ^^^^^ the destructor for this type cannot be evaluated in constant functions
@@ -285,7 +235,7 @@ LL | }
    | - value is dropped here
 
 error[E0015]: cannot call non-const closure in constant functions
-  --> $DIR/fn_trait_refs.rs:29:5
+  --> $DIR/fn_trait_refs.rs:30:5
    |
 LL |     f()
    |     ^^^
@@ -297,7 +247,7 @@ LL |     T: ~const FnOnce<()> + ~const FnOnce(),
    |                          +++++++++++++++++
 
 error[E0493]: destructor of `T` cannot be evaluated at compile-time
-  --> $DIR/fn_trait_refs.rs:32:21
+  --> $DIR/fn_trait_refs.rs:33:21
    |
 LL | const fn test_fn<T>(mut f: T) -> (T::Output, T::Output, T::Output)
    |                     ^^^^^ the destructor for this type cannot be evaluated in constant functions
@@ -306,7 +256,7 @@ LL | }
    | - value is dropped here
 
 error[E0493]: destructor of `T` cannot be evaluated at compile-time
-  --> $DIR/fn_trait_refs.rs:46:25
+  --> $DIR/fn_trait_refs.rs:47:25
    |
 LL | const fn test_fn_mut<T>(mut f: T) -> (T::Output, T::Output)
    |                         ^^^^^ the destructor for this type cannot be evaluated in constant functions
@@ -314,7 +264,7 @@ LL | const fn test_fn_mut<T>(mut f: T) -> (T::Output, T::Output)
 LL | }
    | - value is dropped here
 
-error: aborting due to 39 previous errors
+error: aborting due to 34 previous errors
 
-Some errors have detailed explanations: E0015, E0493, E0635, E0658.
+Some errors have detailed explanations: E0015, E0493, E0635.
 For more information about an error, try `rustc --explain E0015`.

tests/ui/traits/const-traits/const-drop-bound.rs

@@ -2,7 +2,7 @@
 // FIXME check-pass
 
 #![feature(const_trait_impl)]
-#![feature(const_precise_live_drops)]
+#![feature(const_precise_live_drops, const_destruct)]
 
 use std::marker::Destruct;
 

tests/ui/traits/const-traits/const-drop-bound.stderr

@@ -1,43 +1,3 @@
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/const-drop-bound.rs:7:5
-   |
-LL | use std::marker::Destruct;
-   |     ^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/const-drop-bound.rs:9:68
-   |
-LL | const fn foo<T, E>(res: Result<T, E>) -> Option<T> where E: ~const Destruct {
-   |                                                                    ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/const-drop-bound.rs:20:15
-   |
-LL |     T: ~const Destruct,
-   |               ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/const-drop-bound.rs:21:15
-   |
-LL |     E: ~const Destruct,
-   |               ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
 error: `~const` can only be applied to `#[const_trait]` traits
   --> $DIR/const-drop-bound.rs:9:61
    |
@@ -88,7 +48,6 @@ LL |         Err(_e) => None,
    |             |
    |             the destructor for this type cannot be evaluated in constant functions
 
-error: aborting due to 11 previous errors
+error: aborting due to 7 previous errors
 
-Some errors have detailed explanations: E0493, E0658.
+For more information about this error, try `rustc --explain E0493`.
-For more information about an error, try `rustc --explain E0493`.

tests/ui/traits/const-traits/const-drop-fail-2.rs

@@ -1,5 +1,5 @@
 //@ known-bug: #110395
-#![feature(const_trait_impl)]
+#![feature(const_trait_impl, const_destruct)]
 // #![cfg_attr(precise, feature(const_precise_live_drops))]
 
 use std::marker::{Destruct, PhantomData};

tests/ui/traits/const-traits/const-drop-fail-2.stderr

@@ -1,23 +1,3 @@
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/const-drop-fail-2.rs:5:19
-   |
-LL | use std::marker::{Destruct, PhantomData};
-   |                   ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error[E0658]: use of unstable library feature `const_destruct`
-  --> $DIR/const-drop-fail-2.rs:20:26
-   |
-LL | const fn check<T: ~const Destruct>(_: T) {}
-   |                          ^^^^^^^^
-   |
-   = note: see issue #133214 <https://github.com/rust-lang/rust/issues/133214> for more information
-   = help: add `#![feature(const_destruct)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
 error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   --> $DIR/const-drop-fail-2.rs:39:25
    |
@@ -55,7 +35,7 @@ LL | const fn check<T: ~const Destruct>(_: T) {}
    |                                    |
    |                                    the destructor for this type cannot be evaluated in constant functions
 
-error: aborting due to 7 previous errors
+error: aborting due to 5 previous errors
 
-Some errors have detailed explanations: E0277, E0493, E0658.
+Some errors have detailed explanations: E0277, E0493.
 For more information about an error, try `rustc --explain E0277`.

tests/ui/traits/const-traits/effects/auxiliary/minicore.rs

@@ -12,7 +12,7 @@
     fundamental,
     marker_trait_attr,
     const_trait_impl,
-    const_destruct,
+    const_destruct
 )]
 #![allow(internal_features, incomplete_features)]
 #![no_std]
@@ -450,7 +450,7 @@ pub trait Clone: Sized {
     fn clone(&self) -> Self;
     fn clone_from(&mut self, source: &Self)
     where
-    Self: ~const Destruct,
+        Self: ~const Destruct,
     {
         *self = source.clone()
     }