Mention first and last macro in backtrace

compiler/rustc_errors/src/emitter.rs

@@ -399,11 +399,11 @@ pub trait Emitter {
     ) {
         // Check for spans in macros, before `fix_multispans_in_extern_macros`
         // has a chance to replace them.
-        let has_macro_spans = iter::once(&*span)
+        let has_macro_spans: Vec<_> = iter::once(&*span)
             .chain(children.iter().map(|child| &child.span))
             .flat_map(|span| span.primary_spans())
             .flat_map(|sp| sp.macro_backtrace())
-            .find_map(|expn_data| {
+            .filter_map(|expn_data| {
                 match expn_data.kind {
                     ExpnKind::Root => None,
 
@@ -413,7 +413,8 @@ pub trait Emitter {
 
                     ExpnKind::Macro(macro_kind, name) => Some((macro_kind, name)),
                 }
-            });
+            })
+            .collect();
 
         if !backtrace {
             self.fix_multispans_in_extern_macros(source_map, span, children);
@@ -422,11 +423,22 @@ pub trait Emitter {
         self.render_multispans_macro_backtrace(span, children, backtrace);
 
         if !backtrace {
-            if let Some((macro_kind, name)) = has_macro_spans {
+            if let Some((macro_kind, name)) = has_macro_spans.first() {
+                // Mark the actual macro this originates from
+                let and_then = if let Some((macro_kind, last_name)) = has_macro_spans.last()
+                    && last_name != name
+                {
                     let descr = macro_kind.descr();
+                    format!(
+                        " which comes from the expansion of the {descr} `{last_name}`",
+                    )
+                } else {
+                    "".to_string()
+                };
 
+                let descr = macro_kind.descr();
                 let msg = format!(
-                    "this {level} originates in the {descr} `{name}` \
+                    "this {level} originates in the {descr} `{name}`{and_then} \
                     (in Nightly builds, run with -Z macro-backtrace for more info)",
                 );
 

compiler/rustc_errors/src/lib.rs

@@ -6,6 +6,7 @@
 #![feature(drain_filter)]
 #![feature(backtrace)]
 #![feature(if_let_guard)]
+#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(let_else)]
 #![feature(never_type)]
 #![feature(adt_const_params)]

src/test/ui/borrowck/borrowck-and-init.stderr

@@ -9,7 +9,7 @@ LL |     println!("{}", false && { i = 5; true });
 LL |     println!("{}", i);
    |                    ^ `i` used here but it is possibly-uninitialized
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/borrowck/borrowck-break-uninit-2.stderr

@@ -7,7 +7,7 @@ LL |     let x: isize;
 LL |     println!("{}", x);
    |                    ^ `x` used here but it isn't initialized
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/borrowck/borrowck-break-uninit.stderr

@@ -7,7 +7,7 @@ LL |     let x: isize;
 LL |     println!("{}", x);
    |                    ^ `x` used here but it isn't initialized
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/borrowck/borrowck-or-init.stderr

@@ -9,7 +9,7 @@ LL |     println!("{}", false || { i = 5; true });
 LL |     println!("{}", i);
    |                    ^ `i` used here but it is possibly-uninitialized
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/borrowck/borrowck-while-break.stderr

@@ -9,7 +9,7 @@ LL |     while cond {
 LL |     println!("{}", v);
    |                    ^ `v` used here but it is possibly-uninitialized
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/borrowck/issue-24267-flow-exit.stderr

@@ -7,7 +7,7 @@ LL |     loop { x = break; }
 LL |     println!("{}", x);
    |                    ^ `x` used here but it isn't initialized
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0381]: used binding `x` isn't initialized
   --> $DIR/issue-24267-flow-exit.rs:18:20
@@ -18,7 +18,7 @@ LL |     for _ in 0..10 { x = continue; }
 LL |     println!("{}", x);
    |                    ^ `x` used here but it isn't initialized
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/borrowck/issue-64453.stderr

@@ -5,7 +5,7 @@ LL | static settings_dir: String = format!("");
    |                               ^^^^^^^^^^^
    |
    = help: add `#![feature(const_fmt_arguments_new)]` to the crate attributes to enable
-   = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0015]: cannot call non-const fn `format` in statics
   --> $DIR/issue-64453.rs:4:31

src/test/ui/borrowck/issue-81899.stderr

@@ -10,7 +10,7 @@ LL |     panic!()
    |     the evaluated program panicked at 'explicit panic', $DIR/issue-81899.rs:12:5
    |     inside `f::<[closure@$DIR/issue-81899.rs:4:31: 4:34]>` at $SRC_DIR/std/src/panic.rs:LL:COL
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/issue-81899.rs:4:23

src/test/ui/borrowck/issue-88434-minimal-example.stderr

@@ -10,7 +10,7 @@ LL |     panic!()
    |     the evaluated program panicked at 'explicit panic', $DIR/issue-88434-minimal-example.rs:11:5
    |     inside `f::<[closure@$DIR/issue-88434-minimal-example.rs:3:25: 3:28]>` at $SRC_DIR/std/src/panic.rs:LL:COL
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/issue-88434-minimal-example.rs:3:21

src/test/ui/borrowck/issue-88434-removal-index-should-be-less.stderr

@@ -10,7 +10,7 @@ LL |     panic!()
    |     the evaluated program panicked at 'explicit panic', $DIR/issue-88434-removal-index-should-be-less.rs:11:5
    |     inside `f::<[closure@$DIR/issue-88434-removal-index-should-be-less.rs:3:31: 3:34]>` at $SRC_DIR/std/src/panic.rs:LL:COL
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/issue-88434-removal-index-should-be-less.rs:3:23

src/test/ui/borrowck/move-error-snippets.stderr

@@ -12,7 +12,7 @@ LL |         let a = $c;
 LL | sss!();
    | ------ in this macro invocation
    |
-   = note: this error originates in the macro `aaa` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `aaa` which comes from the expansion of the macro `sss` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/closures/2229_closure_analysis/diagnostics/arrays.stderr

@@ -82,7 +82,7 @@ LL |     println!("{}", arr[3]);
 LL |     c();
    |     - mutable borrow later used here
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0502]: cannot borrow `arr` as immutable because it is also borrowed as mutable
   --> $DIR/arrays.rs:73:24

src/test/ui/closures/2229_closure_analysis/diagnostics/box.stderr

@@ -26,7 +26,7 @@ LL |
 LL |     c();
    |     - mutable borrow later used here
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0506]: cannot assign to `e.0.0.m.x` because it is borrowed
   --> $DIR/box.rs:55:5

src/test/ui/closures/2229_closure_analysis/diagnostics/repr_packed.stderr

@@ -9,7 +9,7 @@ LL |         println!("{}", foo.x);
    = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
    = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
    = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 
@@ -25,5 +25,5 @@ LL |         println!("{}", foo.x);
    = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
    = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
    = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 

src/test/ui/closures/2229_closure_analysis/diagnostics/simple-struct-min-capture.stderr

@@ -14,7 +14,7 @@ LL |
 LL |     c();
    |     - mutable borrow later used here
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/codemap_tests/bad-format-args.stderr

@@ -4,7 +4,7 @@ error: requires at least a format string argument
 LL |     format!();
    |     ^^^^^^^^^
    |
-   = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: expected `,`, found `1`
   --> $DIR/bad-format-args.rs:3:16

src/test/ui/codemap_tests/tab_3.stderr

@@ -14,7 +14,7 @@ note: this function takes ownership of the receiver `self`, which moves `some_ve
    |
 LL |     fn into_iter(self) -> Self::IntoIter;
    |                  ^^^^
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/consts/const-eval/conditional_array_execution.stderr

@@ -26,7 +26,7 @@ LL |     println!("{}", FOO);
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this warning originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error; 2 warnings emitted
 
@@ -60,5 +60,5 @@ LL | #![warn(const_err)]
    |         ^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this warning originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 

src/test/ui/consts/const-eval/const_panic.stderr

@@ -4,7 +4,7 @@ error[E0080]: evaluation of constant value failed
 LL | const Z: () = std::panic!("cheese");
    |               ^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'cheese', $DIR/const_panic.rs:6:15
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `std::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic.rs:9:16
@@ -12,7 +12,7 @@ error[E0080]: evaluation of constant value failed
 LL | const Z2: () = std::panic!();
    |                ^^^^^^^^^^^^^ the evaluated program panicked at 'explicit panic', $DIR/const_panic.rs:9:16
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `std::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic.rs:12:15
@@ -20,7 +20,7 @@ error[E0080]: evaluation of constant value failed
 LL | const Y: () = std::unreachable!();
    |               ^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:12:15
    |
-   = note: this error originates in the macro `$crate::panic::unreachable_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::unreachable_2015` which comes from the expansion of the macro `std::unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic.rs:15:15
@@ -36,7 +36,7 @@ error[E0080]: evaluation of constant value failed
 LL | const W: () = std::panic!(MSG);
    |               ^^^^^^^^^^^^^^^^ the evaluated program panicked at 'hello', $DIR/const_panic.rs:18:15
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `std::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic.rs:21:16
@@ -44,7 +44,7 @@ error[E0080]: evaluation of constant value failed
 LL | const W2: () = std::panic!("{}", MSG);
    |                ^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'hello', $DIR/const_panic.rs:21:16
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `std::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic.rs:24:20
@@ -52,7 +52,7 @@ error[E0080]: evaluation of constant value failed
 LL | const Z_CORE: () = core::panic!("cheese");
    |                    ^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'cheese', $DIR/const_panic.rs:24:20
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `core::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic.rs:27:21
@@ -60,7 +60,7 @@ error[E0080]: evaluation of constant value failed
 LL | const Z2_CORE: () = core::panic!();
    |                     ^^^^^^^^^^^^^^ the evaluated program panicked at 'explicit panic', $DIR/const_panic.rs:27:21
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `core::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic.rs:30:20
@@ -68,7 +68,7 @@ error[E0080]: evaluation of constant value failed
 LL | const Y_CORE: () = core::unreachable!();
    |                    ^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:30:20
    |
-   = note: this error originates in the macro `$crate::panic::unreachable_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::unreachable_2015` which comes from the expansion of the macro `core::unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic.rs:33:20
@@ -84,7 +84,7 @@ error[E0080]: evaluation of constant value failed
 LL | const W_CORE: () = core::panic!(MSG);
    |                    ^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'hello', $DIR/const_panic.rs:36:20
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `core::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic.rs:39:21
@@ -92,7 +92,7 @@ error[E0080]: evaluation of constant value failed
 LL | const W2_CORE: () = core::panic!("{}", MSG);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'hello', $DIR/const_panic.rs:39:21
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `core::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 12 previous errors
 

src/test/ui/consts/const-eval/const_panic_2021.stderr

@@ -4,7 +4,7 @@ error[E0080]: evaluation of constant value failed
 LL | const A: () = std::panic!("blåhaj");
    |               ^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'blåhaj', $DIR/const_panic_2021.rs:6:15
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `std::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic_2021.rs:9:15
@@ -12,7 +12,7 @@ error[E0080]: evaluation of constant value failed
 LL | const B: () = std::panic!();
    |               ^^^^^^^^^^^^^ the evaluated program panicked at 'explicit panic', $DIR/const_panic_2021.rs:9:15
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `std::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic_2021.rs:12:15
@@ -20,7 +20,7 @@ error[E0080]: evaluation of constant value failed
 LL | const C: () = std::unreachable!();
    |               ^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic_2021.rs:12:15
    |
-   = note: this error originates in the macro `$crate::panic::unreachable_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::unreachable_2021` which comes from the expansion of the macro `std::unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic_2021.rs:15:15
@@ -36,7 +36,7 @@ error[E0080]: evaluation of constant value failed
 LL | const E: () = std::panic!("{}", MSG);
    |               ^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'hello', $DIR/const_panic_2021.rs:18:15
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `std::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic_2021.rs:21:20
@@ -44,7 +44,7 @@ error[E0080]: evaluation of constant value failed
 LL | const A_CORE: () = core::panic!("shark");
    |                    ^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'shark', $DIR/const_panic_2021.rs:21:20
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `core::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic_2021.rs:24:20
@@ -52,7 +52,7 @@ error[E0080]: evaluation of constant value failed
 LL | const B_CORE: () = core::panic!();
    |                    ^^^^^^^^^^^^^^ the evaluated program panicked at 'explicit panic', $DIR/const_panic_2021.rs:24:20
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `core::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic_2021.rs:27:20
@@ -60,7 +60,7 @@ error[E0080]: evaluation of constant value failed
 LL | const C_CORE: () = core::unreachable!();
    |                    ^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic_2021.rs:27:20
    |
-   = note: this error originates in the macro `$crate::panic::unreachable_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::unreachable_2021` which comes from the expansion of the macro `core::unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic_2021.rs:30:20
@@ -76,7 +76,7 @@ error[E0080]: evaluation of constant value failed
 LL | const E_CORE: () = core::panic!("{}", MSG);
    |                    ^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'hello', $DIR/const_panic_2021.rs:33:20
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `core::panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 10 previous errors
 

src/test/ui/consts/const-eval/const_panic_libcore_bin.stderr

@@ -4,7 +4,7 @@ error[E0080]: evaluation of constant value failed
 LL | const Z: () = panic!("cheese");
    |               ^^^^^^^^^^^^^^^^ the evaluated program panicked at 'cheese', $DIR/const_panic_libcore_bin.rs:8:15
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic_libcore_bin.rs:11:15
@@ -12,7 +12,7 @@ error[E0080]: evaluation of constant value failed
 LL | const Y: () = unreachable!();
    |               ^^^^^^^^^^^^^^ the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic_libcore_bin.rs:11:15
    |
-   = note: this error originates in the macro `$crate::panic::unreachable_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::unreachable_2015` which comes from the expansion of the macro `unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/const_panic_libcore_bin.rs:14:15

src/test/ui/consts/const-eval/format.stderr

@@ -5,7 +5,7 @@ LL |     panic!("{:?}", 0);
    |                    ^
    |
    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-   = note: this error originates in the macro `$crate::const_format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::const_format_args` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0015]: cannot call non-const formatting macro in constant functions
   --> $DIR/format.rs:11:22
@@ -14,7 +14,7 @@ LL |     println!("{:?}", 0);
    |                      ^
    |
    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `Arguments::<'a>::new_v1` is not yet stable as a const fn
   --> $DIR/format.rs:11:5
@@ -23,7 +23,7 @@ LL |     println!("{:?}", 0);
    |     ^^^^^^^^^^^^^^^^^^^
    |
    = help: add `#![feature(const_fmt_arguments_new)]` to the crate attributes to enable
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0015]: cannot call non-const fn `_print` in constant functions
   --> $DIR/format.rs:11:5
@@ -52,7 +52,7 @@ LL |     panic!("{:?}", 0);
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this error originates in the macro `$crate::const_format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::const_format_args` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: erroneous constant used
   --> $DIR/format.rs:11:14
@@ -71,7 +71,7 @@ LL |     println!("{:?}", 0);
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 8 previous errors
 
@@ -97,7 +97,7 @@ LL |     panic!("{:?}", 0);
    = note: `#[deny(const_err)]` on by default
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this error originates in the macro `$crate::const_format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::const_format_args` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 Future breakage diagnostic:
 error: erroneous constant used
@@ -120,5 +120,5 @@ LL |     println!("{:?}", 0);
    = note: `#[deny(const_err)]` on by default
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 

src/test/ui/consts/const-eval/issue-43197.stderr

@@ -35,7 +35,7 @@ LL |     println!("{} {}", X, Y);
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this warning originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/issue-43197.rs:16:26
@@ -51,7 +51,7 @@ LL |     println!("{} {}", X, Y);
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this warning originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors; 4 warnings emitted
 
@@ -100,7 +100,7 @@ LL | #![warn(const_err)]
    |         ^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this warning originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 Future breakage diagnostic:
 warning: erroneous constant used
@@ -116,5 +116,5 @@ LL | #![warn(const_err)]
    |         ^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this warning originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 

src/test/ui/consts/const-eval/issue-44578.stderr

@@ -36,5 +36,5 @@ LL | #![allow(const_err)]
    |          ^^^^^^^^^
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this warning originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 

src/test/ui/consts/const-eval/issue-85907.stderr

@@ -4,7 +4,7 @@ error: argument to `panic!()` in a const context must have type `&str`
 LL |     panic!(123);
    |     ^^^^^^^^^^^
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/consts/const-eval/panic-assoc-never-type.stderr

@@ -4,7 +4,7 @@ error[E0080]: evaluation of constant value failed
 LL |     const VOID: ! = panic!();
    |                     ^^^^^^^^ the evaluated program panicked at 'explicit panic', $DIR/panic-assoc-never-type.rs:10:21
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: erroneous constant used
   --> $DIR/panic-assoc-never-type.rs:15:13

src/test/ui/consts/const-eval/panic-never-type.stderr

@@ -4,7 +4,7 @@ error[E0080]: evaluation of constant value failed
 LL | const VOID: ! = panic!();
    |                 ^^^^^^^^ the evaluated program panicked at 'explicit panic', $DIR/panic-never-type.rs:5:17
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/consts/const-eval/unwind-abort.stderr

@@ -10,7 +10,7 @@ LL |     panic!()
 LL | const _: () = foo();
    |               ----- inside `_` at $DIR/unwind-abort.rs:7:15
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/consts/const-float-bits-reject-conv.stderr

@@ -25,7 +25,7 @@ LL |     called_in_const.call_once(arg)
 LL |     const MASKED_NAN1: u32 = f32::NAN.to_bits() ^ 0x002A_AAAA;
    |                              ------------------ inside `f32::MASKED_NAN1` at $DIR/const-float-bits-reject-conv.rs:27:30
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $SRC_DIR/core/src/num/f32.rs:LL:COL
@@ -54,7 +54,7 @@ LL |     called_in_const.call_once(arg)
 LL |     const MASKED_NAN2: u32 = f32::NAN.to_bits() ^ 0x0055_5555;
    |                              ------------------ inside `f32::MASKED_NAN2` at $DIR/const-float-bits-reject-conv.rs:28:30
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/const-float-bits-reject-conv.rs:30:34
@@ -132,7 +132,7 @@ LL |     called_in_const.call_once(arg)
 LL |     const MASKED_NAN1: u64 = f64::NAN.to_bits() ^ 0x000A_AAAA_AAAA_AAAA;
    |                              ------------------ inside `f64::MASKED_NAN1` at $DIR/const-float-bits-reject-conv.rs:54:30
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $SRC_DIR/core/src/num/f64.rs:LL:COL
@@ -161,7 +161,7 @@ LL |     called_in_const.call_once(arg)
 LL |     const MASKED_NAN2: u64 = f64::NAN.to_bits() ^ 0x0005_5555_5555_5555;
    |                              ------------------ inside `f64::MASKED_NAN2` at $DIR/const-float-bits-reject-conv.rs:55:30
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/const-float-bits-reject-conv.rs:57:34

src/test/ui/consts/issue-32829.stderr

@@ -4,7 +4,7 @@ error[E0080]: could not evaluate static initializer
 LL | static S : u64 = { { panic!("foo"); 0 } };
    |                      ^^^^^^^^^^^^^ the evaluated program panicked at 'foo', $DIR/issue-32829.rs:1:22
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/consts/issue-66693-panic-in-array-len.stderr

@@ -4,7 +4,7 @@ error: argument to `panic!()` in a const context must have type `&str`
 LL |     let _ = [0i32; panic!(2f32)];
    |                    ^^^^^^^^^^^^
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/issue-66693-panic-in-array-len.rs:10:21
@@ -12,7 +12,7 @@ error[E0080]: evaluation of constant value failed
 LL |     let _ = [false; panic!()];
    |                     ^^^^^^^^ the evaluated program panicked at 'explicit panic', $DIR/issue-66693-panic-in-array-len.rs:10:21
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/consts/issue-66693.stderr

@@ -4,7 +4,7 @@ error: argument to `panic!()` in a const context must have type `&str`
 LL | const _: () = panic!(1);
    |               ^^^^^^^^^
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: argument to `panic!()` in a const context must have type `&str`
   --> $DIR/issue-66693.rs:7:19
@@ -12,7 +12,7 @@ error: argument to `panic!()` in a const context must have type `&str`
 LL | static _FOO: () = panic!(true);
    |                   ^^^^^^^^^^^^
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: argument to `panic!()` in a const context must have type `&str`
   --> $DIR/issue-66693.rs:11:5
@@ -20,7 +20,7 @@ error: argument to `panic!()` in a const context must have type `&str`
 LL |     panic!(&1);
    |     ^^^^^^^^^^
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: erroneous constant used
   --> $DIR/issue-66693.rs:11:12

src/test/ui/consts/issue-76064.stderr

@@ -4,7 +4,7 @@ error[E0080]: evaluation of constant value failed
 LL | struct Bug([u8; panic!("panic")]);
    |                 ^^^^^^^^^^^^^^^ the evaluated program panicked at 'panic', $DIR/issue-76064.rs:1:17
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/cross/cross-crate-macro-backtrace/main.stderr

@@ -4,7 +4,7 @@ error: 1 positional argument in format string, but no arguments were given
 LL |     myprintln!("{}");
    |     ^^^^^^^^^^^^^^^^
    |
-   = note: this error originates in the macro `concat` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `concat` which comes from the expansion of the macro `myprintln` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/expr/if/if-let.stderr

@@ -27,7 +27,7 @@ LL | |     });
    |
    = note: this pattern will always match, so the `if let` is useless
    = help: consider replacing the `if let` with a `let`
-   = note: this warning originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in the macro `foo` which comes from the expansion of the macro `bar` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 warning: irrefutable `if let` pattern
   --> $DIR/if-let.rs:26:8

src/test/ui/fmt/ifmt-bad-arg.stderr

@@ -308,7 +308,7 @@ note: associated function defined here
    |
 LL |     pub fn from_usize(x: &usize) -> ArgumentV1<'_> {
    |            ^^^^^^^^^^
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0308]: mismatched types
   --> $DIR/ifmt-bad-arg.rs:81:35
@@ -326,7 +326,7 @@ note: associated function defined here
    |
 LL |     pub fn from_usize(x: &usize) -> ArgumentV1<'_> {
    |            ^^^^^^^^^^
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 36 previous errors
 

src/test/ui/fmt/ifmt-unimpl.stderr

@@ -20,7 +20,7 @@ note: required by a bound in `ArgumentV1::<'a>::new_upper_hex`
    |
 LL |     arg_new!(new_upper_hex, UpperHex);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `ArgumentV1::<'a>::new_upper_hex`
-   = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `arg_new` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/for-loop-while/while-let-2.stderr

@@ -27,7 +27,7 @@ LL | |     });
    |
    = note: this pattern will always match, so the loop will never exit
    = help: consider instead using a `loop { ... }` with a `let` inside it
-   = note: this warning originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in the macro `foo` which comes from the expansion of the macro `bar` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 warning: irrefutable `while let` pattern
   --> $DIR/while-let-2.rs:27:11

src/test/ui/generator/yield-while-ref-reborrowed.stderr

@@ -11,7 +11,7 @@ LL |     println!("{}", x);
 LL |     Pin::new(&mut b).resume(());
    |              ------ first borrow later used here
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/internal/internal-unstable.stderr

@@ -40,7 +40,7 @@ LL |     bar!(internal_unstable::unstable());
    |     ----------------------------------- in this macro invocation
    |
    = help: add `#![feature(function)]` to the crate attributes to enable
-   = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `foo` which comes from the expansion of the macro `bar` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 5 previous errors
 

src/test/ui/issues/issue-16966.stderr

@@ -4,7 +4,7 @@ error[E0282]: type annotations needed
 LL |     panic!(std::default::Default::default());
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `M` declared on the function `begin_panic`
    |
-   = note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider specifying the generic argument
   --> $SRC_DIR/std/src/panic.rs:LL:COL
    |

src/test/ui/issues/issue-42796.stderr

@@ -9,7 +9,7 @@ LL |     let mut s_copy = s;
 LL |     println!("{}", s);
    |                    ^ value borrowed here after move
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/issues/issue-47646.stderr

@@ -13,7 +13,7 @@ LL |             println!("{:?}", heap);
 LL |     };
    |      - ... and the mutable borrow might be used here, when that temporary is dropped and runs the destructor for type `(Option<PeekMut<'_, i32>>, ())`
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/issues/issue-69455.stderr

@@ -4,7 +4,7 @@ error[E0282]: type annotations needed
 LL |     println!("{}", 23u64.test(xs.iter().sum()));
    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the associated function `new_display`
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider specifying the generic argument
    |
 LL |     println!("{}", 23u64.test(xs.iter().sum())::<T>);

src/test/ui/limits/issue-55878.stderr

@@ -18,7 +18,7 @@ LL |     println!("Size: {}", std::mem::size_of::<[u8; u64::MAX as usize]>());
    = note: `#[deny(const_err)]` on by default
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 
@@ -33,5 +33,5 @@ LL |     println!("Size: {}", std::mem::size_of::<[u8; u64::MAX as usize]>());
    = note: `#[deny(const_err)]` on by default
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 

src/test/ui/liveness/liveness-move-in-while.stderr

@@ -29,7 +29,7 @@ LL |         println!("{}", y);
 LL |         while true { while true { while true { x = y; x.clone(); } } }
    |                                                    - value moved here, in previous iteration of loop
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error; 3 warnings emitted
 

src/test/ui/liveness/liveness-use-after-move.stderr

@@ -9,7 +9,7 @@ LL |
 LL |     println!("{}", *x);
    |                    ^^ value borrowed here after move
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/liveness/liveness-use-after-send.stderr

@@ -8,7 +8,7 @@ LL |     send(ch, message);
 LL |     println!("{}", message);
    |                    ^^^^^^^ value borrowed here after move
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/loops/loop-proper-liveness.stderr

@@ -7,7 +7,7 @@ LL |     let x: i32;
 LL |     println!("{:?}", x);
    |                      ^ `x` used here but it isn't initialized
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/macro_backtrace/main.default.stderr

@@ -18,7 +18,7 @@ LL |     () => { syntax error };
 LL |     ping!();
    |     ------- in this macro invocation
    |
-   = note: this error originates in the macro `pong` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `pong` which comes from the expansion of the macro `ping` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `error`
   --> $DIR/main.rs:10:20
@@ -29,7 +29,7 @@ LL |     () => { syntax error };
 LL |     deep!();
    |     ------- in this macro invocation
    |
-   = note: this error originates in the macro `pong` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `pong` which comes from the expansion of the macro `deep` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 3 previous errors
 

src/test/ui/macros/format-parse-errors.stderr

@@ -4,7 +4,7 @@ error: requires at least a format string argument
 LL |     format!();
    |     ^^^^^^^^^
    |
-   = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: expected expression, found keyword `struct`
   --> $DIR/format-parse-errors.rs:5:13

src/test/ui/macros/macro-backtrace-nested.stderr

@@ -7,7 +7,7 @@ LL |     () => (fake)
 LL |     1 + call_nested_expr!();
    |         ------------------- in this macro invocation
    |
-   = note: this error originates in the macro `nested_expr` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `nested_expr` which comes from the expansion of the macro `call_nested_expr` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0425]: cannot find value `fake` in this scope
   --> $DIR/macro-backtrace-nested.rs:5:12
@@ -18,7 +18,7 @@ LL |     () => (fake)
 LL |     call_nested_expr_sum!();
    |     ----------------------- in this macro invocation
    |
-   = note: this error originates in the macro `nested_expr` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `nested_expr` which comes from the expansion of the macro `call_nested_expr_sum` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/macros/macro-backtrace-println.stderr

@@ -7,7 +7,7 @@ LL |     ($fmt:expr) => (myprint!(concat!($fmt, "\n")));
 LL |     myprintln!("{}");
    |     ---------------- in this macro invocation
    |
-   = note: this error originates in the macro `concat` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `concat` which comes from the expansion of the macro `myprintln` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/macros/macro-local-data-key-priv.stderr

@@ -9,7 +9,7 @@ note: the constant `baz` is defined here
    |
 LL |     thread_local!(static baz: f64 = 0.0);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   = note: this error originates in the macro `$crate::__thread_local_inner` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__thread_local_inner` which comes from the expansion of the macro `thread_local` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/macros/restricted-shadowing-legacy.stderr

@@ -24,7 +24,7 @@ LL |         macro_rules! m { () => {} }
 ...
 LL | include!();
    | ---------- in this macro invocation
-   = note: this error originates in the macro `gen_gen_inner_invoc` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `gen_gen_inner_invoc` which comes from the expansion of the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0659]: `m` is ambiguous
   --> $DIR/restricted-shadowing-legacy.rs:139:42
@@ -52,7 +52,7 @@ LL |         macro_rules! m { () => {} }
 ...
 LL | include!();
    | ---------- in this macro invocation
-   = note: this error originates in the macro `gen_invoc` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `gen_invoc` which comes from the expansion of the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0659]: `m` is ambiguous
   --> $DIR/restricted-shadowing-legacy.rs:148:9
@@ -136,7 +136,7 @@ LL |         macro_rules! m { () => { Wrong } }
 ...
 LL | include!();
    | ---------- in this macro invocation
-   = note: this error originates in the macro `gen_gen_inner_invoc` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `gen_gen_inner_invoc` which comes from the expansion of the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0659]: `m` is ambiguous
   --> $DIR/restricted-shadowing-legacy.rs:218:42
@@ -164,7 +164,7 @@ LL |         macro_rules! m { () => { Wrong } }
 ...
 LL | include!();
    | ---------- in this macro invocation
-   = note: this error originates in the macro `gen_invoc` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `gen_invoc` which comes from the expansion of the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0659]: `m` is ambiguous
   --> $DIR/restricted-shadowing-legacy.rs:232:9
@@ -220,7 +220,7 @@ LL |             macro_rules! m { () => {} }
 ...
 LL | include!();
    | ---------- in this macro invocation
-   = note: this error originates in the macro `gen_invoc` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `gen_invoc` which comes from the expansion of the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 8 previous errors
 

src/test/ui/macros/restricted-shadowing-modern.stderr

@@ -24,7 +24,7 @@ LL |         macro m() {}
 ...
 LL | include!();
    | ---------- in this macro invocation
-   = note: this error originates in the macro `gen_gen_inner_invoc` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `gen_gen_inner_invoc` which comes from the expansion of the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0659]: `m` is ambiguous
   --> $DIR/restricted-shadowing-modern.rs:147:33
@@ -52,7 +52,7 @@ LL |         macro m() {}
 ...
 LL | include!();
    | ---------- in this macro invocation
-   = note: this error originates in the macro `gen_invoc` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `gen_invoc` which comes from the expansion of the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0659]: `m` is ambiguous
   --> $DIR/restricted-shadowing-modern.rs:156:13
@@ -136,7 +136,7 @@ LL |         macro m() { Wrong }
 ...
 LL | include!();
    | ---------- in this macro invocation
-   = note: this error originates in the macro `gen_gen_inner_invoc` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `gen_gen_inner_invoc` which comes from the expansion of the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0659]: `m` is ambiguous
   --> $DIR/restricted-shadowing-modern.rs:233:33
@@ -164,7 +164,7 @@ LL |         macro m() { Wrong }
 ...
 LL | include!();
    | ---------- in this macro invocation
-   = note: this error originates in the macro `gen_invoc` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `gen_invoc` which comes from the expansion of the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 6 previous errors
 

src/test/ui/macros/unreachable-format-args.edition_2015.stderr

@@ -6,7 +6,7 @@ LL |     unreachable!("x is {x} and y is {y}", y = 0);
    |
    = note: did you intend to capture a variable `x` from the surrounding scope?
    = note: to avoid ambiguity, `format_args!` cannot capture variables when the format string is expanded from a macro
-   = note: this error originates in the macro `$crate::concat` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::concat` which comes from the expansion of the macro `unreachable` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/moves/moves-based-on-type-capture-clause-bad.stderr

@@ -11,7 +11,7 @@ LL |     });
 LL |     println!("{}", x);
    |                    ^ value borrowed here after move
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/on-unimplemented/no-debug.stderr

@@ -6,7 +6,7 @@ LL |     println!("{:?} {:?}", Foo, Bar);
    |
    = help: the trait `Debug` is not implemented for `Foo`
    = note: add `#[derive(Debug)]` to `Foo` or manually `impl Debug for Foo`
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider annotating `Foo` with `#[derive(Debug)]`
    |
 LL | #[derive(Debug)]
@@ -19,7 +19,7 @@ LL |     println!("{:?} {:?}", Foo, Bar);
    |                                ^^^ `Bar` cannot be formatted using `{:?}` because it doesn't implement `Debug`
    |
    = help: the trait `Debug` is not implemented for `Bar`
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: `Foo` doesn't implement `std::fmt::Display`
   --> $DIR/no-debug.rs:11:23
@@ -29,7 +29,7 @@ LL |     println!("{} {}", Foo, Bar);
    |
    = help: the trait `std::fmt::Display` is not implemented for `Foo`
    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: `Bar` doesn't implement `std::fmt::Display`
   --> $DIR/no-debug.rs:11:28
@@ -39,7 +39,7 @@ LL |     println!("{} {}", Foo, Bar);
    |
    = help: the trait `std::fmt::Display` is not implemented for `Bar`
    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 4 previous errors
 

src/test/ui/parser/macro/pub-item-macro.stderr

@@ -24,7 +24,7 @@ LL |         static x: u32 = 0;
 ...
 LL |     pub_x!();
    |     -------- in this macro invocation
-   = note: this error originates in the macro `priv_x` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `priv_x` which comes from the expansion of the macro `pub_x` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/proc-macro/mixed-site-span.stderr

@@ -26,7 +26,7 @@ error[E0412]: cannot find type `ItemUse` in crate `$crate`
 LL | pass_dollar_crate!();
    | ^^^^^^^^^^^^^^^^^^^^ not found in `$crate`
    |
-   = note: this error originates in the macro `proc_macro_rules` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `proc_macro_rules` which comes from the expansion of the macro `pass_dollar_crate` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 4 previous errors
 

src/test/ui/proc-macro/parent-source-spans.stderr

@@ -7,7 +7,7 @@ LL |     three!($a, $b);
 LL |     one!("hello", "world");
    |     ---------------------- in this macro invocation
    |
-   = note: this error originates in the macro `two` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `two` which comes from the expansion of the macro `one` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: second final: "world"
   --> $DIR/parent-source-spans.rs:16:16
@@ -18,7 +18,7 @@ LL |     three!($a, $b);
 LL |     one!("hello", "world");
    |     ---------------------- in this macro invocation
    |
-   = note: this error originates in the macro `two` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `two` which comes from the expansion of the macro `one` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: first parent: "hello"
   --> $DIR/parent-source-spans.rs:10:5
@@ -150,7 +150,7 @@ LL |     one!("hello", "world");
 LL |     Ok(#[stable(feature = "rust1", since = "1.0.0")] T),
    |     -- similarly named tuple variant `Ok` defined here
    |
-   = note: this error originates in the macro `parent_source_spans` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `parent_source_spans` which comes from the expansion of the macro `one` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0425]: cannot find value `ok` in this scope
   --> $DIR/parent-source-spans.rs:29:5
@@ -166,7 +166,7 @@ LL |     two!("yay", "rust");
 LL |     Ok(#[stable(feature = "rust1", since = "1.0.0")] T),
    |     -- similarly named tuple variant `Ok` defined here
    |
-   = note: this error originates in the macro `parent_source_spans` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `parent_source_spans` which comes from the expansion of the macro `two` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0425]: cannot find value `ok` in this scope
   --> $DIR/parent-source-spans.rs:29:5
@@ -182,7 +182,7 @@ LL |     three!("hip", "hop");
 LL |     Ok(#[stable(feature = "rust1", since = "1.0.0")] T),
    |     -- similarly named tuple variant `Ok` defined here
    |
-   = note: this error originates in the macro `parent_source_spans` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `parent_source_spans` which comes from the expansion of the macro `three` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 21 previous errors
 

src/test/ui/proc-macro/weird-hygiene.stderr

@@ -7,7 +7,7 @@ LL |             Value = (stringify!($tokens + hidden_ident), 1).1
 LL |     other!(50);
    |     ---------- in this macro invocation
    |
-   = note: this error originates in the macro `inner` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `inner` which comes from the expansion of the macro `other` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0425]: cannot find value `hidden_ident` in this scope
   --> $DIR/weird-hygiene.rs:34:13

src/test/ui/rfc-2361-dbg-macro/dbg-macro-requires-debug.stderr

@@ -6,7 +6,7 @@ LL |     let _: NotDebug = dbg!(NotDebug);
    |
    = help: the trait `Debug` is not implemented for `NotDebug`
    = note: add `#[derive(Debug)]` to `NotDebug` or manually `impl Debug for NotDebug`
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider annotating `NotDebug` with `#[derive(Debug)]`
    |
 LL | #[derive(Debug)]

src/test/ui/suggestions/bound-suggestions.stderr

@@ -4,7 +4,7 @@ error[E0277]: `impl Sized` doesn't implement `Debug`
 LL |     println!("{:?}", t);
    |                      ^ `impl Sized` cannot be formatted using `{:?}` because it doesn't implement `Debug`
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider further restricting this bound
    |
 LL | fn test_impl(t: impl Sized + std::fmt::Debug) {
@@ -16,7 +16,7 @@ error[E0277]: `T` doesn't implement `Debug`
 LL |     println!("{:?}", t);
    |                      ^ `T` cannot be formatted using `{:?}` because it doesn't implement `Debug`
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider restricting type parameter `T`
    |
 LL | fn test_no_bounds<T: std::fmt::Debug>(t: T) {
@@ -28,7 +28,7 @@ error[E0277]: `T` doesn't implement `Debug`
 LL |     println!("{:?}", t);
    |                      ^ `T` cannot be formatted using `{:?}` because it doesn't implement `Debug`
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider further restricting this bound
    |
 LL | fn test_one_bound<T: Sized + std::fmt::Debug>(t: T) {
@@ -40,7 +40,7 @@ error[E0277]: `Y` doesn't implement `Debug`
 LL |     println!("{:?} {:?}", x, y);
    |                              ^ `Y` cannot be formatted using `{:?}` because it doesn't implement `Debug`
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider further restricting type parameter `Y`
    |
 LL | fn test_no_bounds_where<X, Y>(x: X, y: Y) where X: std::fmt::Debug, Y: std::fmt::Debug {
@@ -52,7 +52,7 @@ error[E0277]: `X` doesn't implement `Debug`
 LL |     println!("{:?}", x);
    |                      ^ `X` cannot be formatted using `{:?}` because it doesn't implement `Debug`
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider further restricting this bound
    |
 LL | fn test_one_bound_where<X>(x: X) where X: Sized + std::fmt::Debug {
@@ -64,7 +64,7 @@ error[E0277]: `X` doesn't implement `Debug`
 LL |     println!("{:?}", x);
    |                      ^ `X` cannot be formatted using `{:?}` because it doesn't implement `Debug`
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider further restricting this bound
    |
 LL | fn test_many_bounds_where<X>(x: X) where X: Sized + std::fmt::Debug, X: Sized {

src/test/ui/suggestions/dont-suggest-deref-inside-macro-issue-58298.stderr

@@ -6,7 +6,7 @@ LL | |         "abc"
 LL | |     };
    | |_____^ expected `&str`, found struct `String`
    |
-   = note: this error originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `format` which comes from the expansion of the macro `intrinsic_match` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/suggestions/issue-97760.stderr

@@ -6,7 +6,7 @@ LL |         println!("{x}");
    |
    = help: the trait `std::fmt::Display` is not implemented for `<impl IntoIterator as IntoIterator>::Item`
    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: introduce a type parameter with a trait bound instead of using `impl Trait`
    |
 LL ~ pub fn print_values<I: IntoIterator>(values: &I)

src/test/ui/suggestions/path-display.stderr

@@ -6,7 +6,7 @@ LL |     println!("{}", path);
    |
    = help: the trait `std::fmt::Display` is not implemented for `Path`
    = note: call `.display()` or `.to_string_lossy()` to safely print paths, as they may contain non-Unicode data
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: `PathBuf` doesn't implement `std::fmt::Display`
   --> $DIR/path-display.rs:9:20
@@ -16,7 +16,7 @@ LL |     println!("{}", path);
    |
    = help: the trait `std::fmt::Display` is not implemented for `PathBuf`
    = note: call `.display()` or `.to_string_lossy()` to safely print paths, as they may contain non-Unicode data
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/try-block/try-block-maybe-bad-lifetime.stderr

@@ -22,7 +22,7 @@ LL |         };
 LL |         println!("{}", x);
    |                        ^ value borrowed here after move
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0506]: cannot assign to `i` because it is borrowed
   --> $DIR/try-block-maybe-bad-lifetime.rs:40:9

src/test/ui/type-alias-impl-trait/nested.stderr

@@ -5,7 +5,7 @@ LL |     println!("{:?}", bar());
    |                      ^^^^^ `Bar` cannot be formatted using `{:?}` because it doesn't implement `Debug`
    |
    = help: the trait `Debug` is not implemented for `Bar`
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/type/ascription/issue-47666.stderr

@@ -10,7 +10,7 @@ LL |     let _ = Option:Some(vec![0, 1]);
    |                   help: maybe write a path separator here: `::`
    |
    = note: `#![feature(type_ascription)]` lets you annotate an expression with a type: `<expr>: <type>`
-   = note: this error originates in the macro `$crate::__rust_force_expr` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__rust_force_expr` which comes from the expansion of the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/use/use-after-move-based-on-type.stderr

@@ -8,7 +8,7 @@ LL |     let _y = x;
 LL |     println!("{}", x);
    |                    ^ value borrowed here after move
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/walk-struct-literal-with.stderr

@@ -13,7 +13,7 @@ note: this function takes ownership of the receiver `self`, which moves `start`
    |
 LL |     fn make_string_bar(mut self) -> Mine{
    |                            ^^^^
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/tools/clippy/tests/ui/diverging_sub_expression.stderr

@@ -36,7 +36,7 @@ error: sub-expression diverges
 LL |                 _ => true || panic!("boo"),
    |                              ^^^^^^^^^^^^^
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: sub-expression diverges
   --> $DIR/diverging_sub_expression.rs:38:26

src/tools/clippy/tests/ui/fallible_impl_from.stderr

@@ -38,7 +38,7 @@ note: potential failure(s)
    |
 LL |             panic!();
    |             ^^^^^^^^
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: consider implementing `TryFrom` instead
   --> $DIR/fallible_impl_from.rs:35:1
@@ -65,7 +65,7 @@ LL |         } else if s.parse::<u32>().unwrap() != 42 {
    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
 LL |             panic!("{:?}", s);
    |             ^^^^^^^^^^^^^^^^^
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: consider implementing `TryFrom` instead
   --> $DIR/fallible_impl_from.rs:53:1
@@ -87,7 +87,7 @@ LL |         if s.parse::<u32>().ok().unwrap() != 42 {
    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 LL |             panic!("{:?}", s);
    |             ^^^^^^^^^^^^^^^^^
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 4 previous errors
 

src/tools/clippy/tests/ui/issue-7447.stderr

@@ -5,7 +5,7 @@ LL |     byte_view(panic!());
    |               ^^^^^^^^
    |
    = note: `-D clippy::diverging-sub-expression` implied by `-D warnings`
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: sub-expression diverges
   --> $DIR/issue-7447.rs:24:19
@@ -13,7 +13,7 @@ error: sub-expression diverges
 LL |     group_entries(panic!());
    |                   ^^^^^^^^
    |
-   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::panic::panic_2021` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors