rustc_macros: don't limit the -Zmacro-backtrace suggestion to extern macros.

src/librustc_errors/emitter.rs

@@ -26,6 +26,7 @@ use std::borrow::Cow;
 use std::cmp::{max, min, Reverse};
 use std::io;
 use std::io::prelude::*;
+use std::iter;
 use std::path::Path;
 use termcolor::{Ansi, BufferWriter, ColorChoice, ColorSpec, StandardStream};
 use termcolor::{Buffer, Color, WriteColor};
@@ -279,20 +280,41 @@ pub trait Emitter {
         level: &Level,
         backtrace: bool,
     ) {
-        let mut external_spans_updated = false;
+        // Check for spans in macros, before `fix_multispans_in_extern_macros`
+        // has a chance to replace them.
+        let has_macro_spans = iter::once(&*span)
+            .chain(children.iter().map(|child| &child.span))
+            .flat_map(|span| span.primary_spans())
+            .copied()
+            .flat_map(|sp| {
+                sp.macro_backtrace().filter_map(|expn_data| {
+                    match expn_data.kind {
+                        ExpnKind::Root => None,
+
+                        // Skip past non-macro entries, just in case there
+                        // are some which do actually involve macros.
+                        ExpnKind::Desugaring(..) | ExpnKind::AstPass(..) => None,
+
+                        ExpnKind::Macro(macro_kind, _) => Some(macro_kind),
+                    }
+                })
+            })
+            .next();
+
         if !backtrace {
-            external_spans_updated =
+            self.fix_multispans_in_extern_macros(source_map, span, children);
-                self.fix_multispans_in_extern_macros(source_map, span, children);
         }
 
         self.render_multispans_macro_backtrace(span, children, backtrace);
 
         if !backtrace {
-            if external_spans_updated {
+            if let Some(macro_kind) = has_macro_spans {
                 let msg = format!(
-                    "this {} originates in a macro outside of the current crate \
+                    "this {} originates in {} {} \
                     (in Nightly builds, run with -Z macro-backtrace for more info)",
                     level,
+                    macro_kind.article(),
+                    macro_kind.descr(),
                 );
 
                 children.push(SubDiagnostic {
@@ -311,9 +333,8 @@ pub trait Emitter {
         children: &mut Vec<SubDiagnostic>,
         backtrace: bool,
     ) {
-        self.render_multispan_macro_backtrace(span, backtrace);
+        for span in iter::once(span).chain(children.iter_mut().map(|child| &mut child.span)) {
-        for child in children.iter_mut() {
+            self.render_multispan_macro_backtrace(span, backtrace);
-            self.render_multispan_macro_backtrace(&mut child.span, backtrace);
         }
     }
 
@@ -386,6 +407,7 @@ pub trait Emitter {
                 }
             }
         }
+
         for (label_span, label_text) in new_labels {
             span.push_span_label(label_span, label_text);
         }
@@ -399,12 +421,10 @@ pub trait Emitter {
         source_map: &Option<Lrc<SourceMap>>,
         span: &mut MultiSpan,
         children: &mut Vec<SubDiagnostic>,
-    ) -> bool {
+    ) {
-        let mut spans_updated = self.fix_multispan_in_extern_macros(source_map, span);
+        for span in iter::once(span).chain(children.iter_mut().map(|child| &mut child.span)) {
-        for child in children.iter_mut() {
+            self.fix_multispan_in_extern_macros(source_map, span);
-            spans_updated |= self.fix_multispan_in_extern_macros(source_map, &mut child.span);
         }
-        spans_updated
     }
 
     // This "fixes" MultiSpans that contain Spans that are pointing to locations inside of
@@ -414,10 +434,10 @@ pub trait Emitter {
         &self,
         source_map: &Option<Lrc<SourceMap>>,
         span: &mut MultiSpan,
-    ) -> bool {
+    ) {
         let sm = match source_map {
             Some(ref sm) => sm,
-            None => return false,
+            None => return,
         };
 
         // First, find all the spans in <*macros> and point instead at their use site
@@ -438,12 +458,9 @@ pub trait Emitter {
             .collect();
 
         // After we have them, make sure we replace these 'bad' def sites with their use sites
-        let spans_updated = !replacements.is_empty();
         for (from, to) in replacements {
             span.replace(from, to);
         }
-
-        spans_updated
     }
 }
 

src/test/rustdoc-ui/intra-links-warning.stderr

@@ -175,4 +175,5 @@ LL | f!("Foo\nbar [BarF] bar\nbaz");
            bar [BarF] bar
                 ^^^^
    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
+   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 

src/test/ui-fulldeps/hash-stable-is-unstable.stderr

@@ -42,6 +42,7 @@ LL | #[derive(HashStable)]
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 5 previous errors
 

src/test/ui-fulldeps/internal-lints/lint_pass_impl_without_macro.stderr

@@ -21,6 +21,7 @@ LL | custom_lint_pass_macro!();
    | -------------------------- in this macro invocation
    |
    = help: try using `declare_lint_pass!` or `impl_lint_pass!` instead
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/allocator/not-an-allocator.stderr

@@ -5,6 +5,7 @@ LL | static A: usize = 0;
    | ^^^^^^^^^^^^^^^^^^^^ the trait `std::alloc::GlobalAlloc` is not implemented for `usize`
    |
    = note: required by `std::alloc::GlobalAlloc::alloc`
+   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: the trait bound `usize: std::alloc::GlobalAlloc` is not satisfied
   --> $DIR/not-an-allocator.rs:2:1
@@ -13,6 +14,7 @@ LL | static A: usize = 0;
    | ^^^^^^^^^^^^^^^^^^^^ the trait `std::alloc::GlobalAlloc` is not implemented for `usize`
    |
    = note: required by `std::alloc::GlobalAlloc::dealloc`
+   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: the trait bound `usize: std::alloc::GlobalAlloc` is not satisfied
   --> $DIR/not-an-allocator.rs:2:1
@@ -21,6 +23,7 @@ LL | static A: usize = 0;
    | ^^^^^^^^^^^^^^^^^^^^ the trait `std::alloc::GlobalAlloc` is not implemented for `usize`
    |
    = note: required by `std::alloc::GlobalAlloc::realloc`
+   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: the trait bound `usize: std::alloc::GlobalAlloc` is not satisfied
   --> $DIR/not-an-allocator.rs:2:1
@@ -29,6 +32,7 @@ LL | static A: usize = 0;
    | ^^^^^^^^^^^^^^^^^^^^ the trait `std::alloc::GlobalAlloc` is not implemented for `usize`
    |
    = note: required by `std::alloc::GlobalAlloc::alloc_zeroed`
+   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 4 previous errors
 

src/test/ui/allocator/two-allocators.stderr

@@ -6,6 +6,8 @@ LL | static A: System = System;
 LL | #[global_allocator]
 LL | static B: System = System;
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot define a new global allocator
+   |
+   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/borrowck/borrowck-borrowed-uniq-rvalue-2.stderr

@@ -9,7 +9,7 @@ LL |     x.x[0];
    |     ------ borrow later used here
    |
    = note: consider using a `let` binding to create a longer lived value
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

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

@@ -6,7 +6,7 @@ LL | static settings_dir: String = format!("");
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/49146
    = help: add `#![feature(const_if_match)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

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

@@ -9,6 +9,8 @@ LL |               aaa!(D);
 ...
 LL |   sss!();
    |   ------- in this macro invocation
+   |
+   = note: this error originates in a macro (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 a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: expected token: `,`
   --> $DIR/bad-format-args.rs:3:16

src/test/ui/codemap_tests/issue-28308.stderr

@@ -3,6 +3,8 @@ error[E0600]: cannot apply unary operator `!` to type `&'static str`
    |
 LL |     assert!("foo");
    |     ^^^^^^^^^^^^^^^ cannot apply unary operator `!`
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/conditional-compilation/cfg-attr-syntax-validation.stderr

@@ -60,6 +60,8 @@ LL |         #[cfg(feature = $expr)]
 ...
 LL | generate_s10!(concat!("nonexistent"));
    | -------------------------------------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 10 previous errors
 

src/test/ui/conditional-compilation/cfg-attr-unknown-attribute-macro-expansion.stderr

@@ -6,6 +6,8 @@ LL |         #[cfg_attr(all(), unknown)]
 ...
 LL | foo!();
    | ------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/const-generics/array-impls/core-traits-no-impls-length-33.stderr

@@ -6,6 +6,7 @@ LL |     println!("{:?}", [0_usize; 33]);
    |
    = note: required because of the requirements on the impl of `std::fmt::Debug` for `[usize; 33]`
    = note: required by `std::fmt::Debug::fmt`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: arrays only have std trait implementations for lengths 0..=32
   --> $DIR/core-traits-no-impls-length-33.rs:10:16

src/test/ui/const-generics/broken-mir-2.stderr

@@ -15,6 +15,7 @@ LL | struct S<T: Debug, const N: usize>([T; N]);
    = note: required because of the requirements on the impl of `std::fmt::Debug` for `[T; _]`
    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&[T; _]`
    = note: required for the cast to the object type `dyn std::fmt::Debug`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/const-generics/derive-debug-array-wrapper.stderr

@@ -15,6 +15,7 @@ LL |     a: [u32; N],
    = note: required because of the requirements on the impl of `std::fmt::Debug` for `[u32; _]`
    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&[u32; _]`
    = note: required for the cast to the object type `dyn std::fmt::Debug`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/consts/const-eval/const_fn_ptr_fail2.stderr

@@ -12,7 +12,7 @@ LL |     assert_eq!(Y, 4);
    |                |
    |                referenced constant has errors
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: evaluation of constant expression failed
   --> $DIR/const_fn_ptr_fail2.rs:22:5
@@ -22,7 +22,7 @@ LL |     assert_eq!(Z, 4);
    |                |
    |                referenced constant has errors
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

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

@@ -7,7 +7,7 @@ LL | pub const Z: () = panic!("cheese");
    |                   the evaluated program panicked at 'cheese', $DIR/const_panic.rs:4:19
    |
    = note: `#[deny(const_err)]` on by default
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/const_panic.rs:7:19
@@ -17,7 +17,7 @@ LL | pub const Y: () = unreachable!();
    |                   |
    |                   the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:7:19
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/const_panic.rs:10:19
@@ -27,7 +27,7 @@ LL | pub const X: () = unimplemented!();
    |                   |
    |                   the evaluated program panicked at 'not implemented', $DIR/const_panic.rs:10:19
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 3 previous errors
 

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

@@ -7,7 +7,7 @@ LL | const Z: () = panic!("cheese");
    |               the evaluated program panicked at 'cheese', $DIR/const_panic_libcore.rs:5:15
    |
    = note: `#[deny(const_err)]` on by default
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/const_panic_libcore.rs:8:15
@@ -17,7 +17,7 @@ LL | const Y: () = unreachable!();
    |               |
    |               the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic_libcore.rs:8:15
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/const_panic_libcore.rs:11:15
@@ -27,7 +27,7 @@ LL | const X: () = unimplemented!();
    |               |
    |               the evaluated program panicked at 'not implemented', $DIR/const_panic_libcore.rs:11:15
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 3 previous errors
 

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

@@ -7,7 +7,7 @@ LL | const Z: () = panic!("cheese");
    |               the evaluated program panicked at 'cheese', $DIR/const_panic_libcore_main.rs:9:15
    |
    = note: `#[deny(const_err)]` on by default
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/const_panic_libcore_main.rs:12:15
@@ -17,7 +17,7 @@ LL | const Y: () = unreachable!();
    |               |
    |               the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic_libcore_main.rs:12:15
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/const_panic_libcore_main.rs:15:15
@@ -27,7 +27,7 @@ LL | const X: () = unimplemented!();
    |               |
    |               the evaluated program panicked at 'not implemented', $DIR/const_panic_libcore_main.rs:15:15
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 3 previous errors
 

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

@@ -6,7 +6,7 @@ LL | const Z: () = panic!("cheese");
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/51999
    = help: add `#![feature(const_panic)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0658]: panicking in constants is unstable
   --> $DIR/feature-gate-const_panic.rs:9:15
@@ -16,7 +16,7 @@ LL | const X: () = unimplemented!();
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/51999
    = help: add `#![feature(const_panic)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0658]: panicking in constants is unstable
   --> $DIR/feature-gate-const_panic.rs:6:15
@@ -26,7 +26,7 @@ LL | const Y: () = unreachable!();
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/51999
    = help: add `#![feature(const_panic)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 3 previous errors
 

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

@@ -11,7 +11,7 @@ note: the lint level is defined here
    |
 LL | #![warn(const_err)]
    |         ^^^^^^^^^
-   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: erroneous constant used
   --> $DIR/panic-assoc-never-type.rs:16:13

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

@@ -11,7 +11,7 @@ note: the lint level is defined here
    |
 LL | #![warn(const_err)]
    |         ^^^^^^^^^
-   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0080]: erroneous constant used
   --> $DIR/panic-never-type.rs:12:13

src/test/ui/consts/const-external-macro-const-err.stderr

@@ -5,7 +5,7 @@ LL |     static_assert!(2 + 2 == 5);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ index out of bounds: the len is 1 but the index is 1
    |
    = note: `#[deny(const_err)]` on by default
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/consts/control-flow/assert.both.stderr

@@ -7,7 +7,7 @@ LL | const _: () = assert!(false);
    |               the evaluated program panicked at 'assertion failed: false', $DIR/assert.rs:12:15
    |
    = note: `#[deny(const_err)]` on by default
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/consts/control-flow/assert.if_match.stderr

@@ -6,7 +6,7 @@ LL | const _: () = assert!(true);
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/51999
    = help: add `#![feature(const_panic)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0658]: panicking in constants is unstable
   --> $DIR/assert.rs:12:15
@@ -16,7 +16,7 @@ LL | const _: () = assert!(false);
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/51999
    = help: add `#![feature(const_panic)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/consts/control-flow/assert.panic.stderr

@@ -6,6 +6,7 @@ LL | const _: () = assert!(true);
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/49146
    = help: add `#![feature(const_if_match)]` to the crate attributes to enable
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0658]: `if` is not allowed in a `const`
   --> $DIR/assert.rs:12:15
@@ -15,6 +16,7 @@ LL | const _: () = assert!(false);
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/49146
    = help: add `#![feature(const_if_match)]` to the crate attributes to enable
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/consts/control-flow/assert.stock.stderr

@@ -6,6 +6,7 @@ LL | const _: () = assert!(true);
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/49146
    = help: add `#![feature(const_if_match)]` to the crate attributes to enable
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0658]: `if` is not allowed in a `const`
   --> $DIR/assert.rs:12:15
@@ -15,6 +16,7 @@ LL | const _: () = assert!(false);
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/49146
    = help: add `#![feature(const_if_match)]` to the crate attributes to enable
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/consts/control-flow/issue-50577.if_match.stderr

@@ -9,7 +9,7 @@ LL |         Drop = assert_eq!(1, 1)
    |
    = note: `if` expressions without `else` evaluate to `()`
    = help: consider adding an `else` block that evaluates to the expected type
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/consts/control-flow/issue-50577.stock.stderr

@@ -6,7 +6,7 @@ LL |         Drop = assert_eq!(1, 1)
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/49146
    = help: add `#![feature(const_if_match)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0658]: `if` is not allowed in a `const`
   --> $DIR/issue-50577.rs:7:16
@@ -16,7 +16,7 @@ LL |         Drop = assert_eq!(1, 1)
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/49146
    = help: add `#![feature(const_if_match)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0658]: `match` is not allowed in a `const`
   --> $DIR/issue-50577.rs:7:16
@@ -26,7 +26,7 @@ LL |         Drop = assert_eq!(1, 1)
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/49146
    = help: add `#![feature(const_if_match)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0317]: `if` may be missing an `else` clause
   --> $DIR/issue-50577.rs:7:16
@@ -39,7 +39,7 @@ LL |         Drop = assert_eq!(1, 1)
    |
    = note: `if` expressions without `else` evaluate to `()`
    = help: consider adding an `else` block that evaluates to the expected type
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 4 previous errors
 

src/test/ui/consts/control-flow/short-circuit.stock.stderr

@@ -7,7 +7,7 @@ LL | const _: bool = true || panic!();
    |                         the evaluated program panicked at 'explicit panic', $DIR/short-circuit.rs:10:25
    |
    = note: `#[deny(const_err)]` on by default
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
   --> $DIR/short-circuit.rs:11:26
@@ -17,7 +17,7 @@ LL | const _: bool = false && panic!();
    |                          |
    |                          the evaluated program panicked at 'explicit panic', $DIR/short-circuit.rs:11:26
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/consts/enum-discr-type-err.stderr

@@ -10,6 +10,7 @@ LL | |     B = T,
 LL | | }
    | |_- in this macro invocation
    |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 help: you can convert an `i32` to `isize` and panic if the converted value wouldn't fit
    |
 LL |             $( $v = $s::V.try_into().unwrap(), )*
@@ -27,6 +28,7 @@ LL | |     B = T,
 LL | | }
    | |_- in this macro invocation
    |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 help: you can convert an `i32` to `isize` and panic if the converted value wouldn't fit
    |
 LL |             $( $v = $s::V.try_into().unwrap(), )*

src/test/ui/consts/min_const_fn/bad_const_fn_body_ice.stderr

@@ -6,7 +6,7 @@ LL |     vec![1, 2, 3]
    |
    = note: for more information, see issue https://github.com/rust-lang/rust/issues/57563
    = help: add `#![feature(const_fn)]` to the crate attributes to enable
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (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 a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/cross/cross-file-errors/main.stderr

@@ -8,6 +8,8 @@ LL |         _
    |
 LL |     underscore!();
    |     -------------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/custom_test_frameworks/mismatch.stderr

@@ -5,6 +5,7 @@ LL | fn wrong_kind(){}
    | ^^^^^^^^^^^^^^^^^ the trait `example_runner::Testable` is not implemented for `test::TestDescAndFn`
    |
    = note: required for the cast to the object type `dyn example_runner::Testable`
+   = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/deprecation/deprecation-lint-2.stderr

@@ -9,7 +9,7 @@ note: the lint level is defined here
    |
 LL | #![deny(deprecated)]
    |         ^^^^^^^^^^
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/deprecation/deprecation-lint-3.stderr

@@ -9,7 +9,7 @@ note: the lint level is defined here
    |
 LL | #![deny(deprecated)]
    |         ^^^^^^^^^^
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/deref-suggestion.stderr

@@ -42,6 +42,8 @@ LL |     ($x:expr) => { &$x }
 ...
 LL |     foo3(borrow!(0));
    |          ---------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0308]: mismatched types
   --> $DIR/deref-suggestion.rs:36:5
@@ -49,7 +51,7 @@ error[E0308]: mismatched types
 LL |     assert_eq!(3i32, &3i32);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^ expected `i32`, found `&i32`
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0308]: mismatched types
   --> $DIR/deref-suggestion.rs:39:17

src/test/ui/derives/derives-span-Clone-enum-struct-variant.stderr

@@ -5,6 +5,7 @@ LL |      x: Error
    |      ^^^^^^^^ the trait `std::clone::Clone` is not implemented for `Error`
    |
    = note: required by `std::clone::Clone::clone`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Clone-enum.stderr

@@ -5,6 +5,7 @@ LL |      Error
    |      ^^^^^ the trait `std::clone::Clone` is not implemented for `Error`
    |
    = note: required by `std::clone::Clone::clone`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Clone-struct.stderr

@@ -5,6 +5,7 @@ LL |     x: Error
    |     ^^^^^^^^ the trait `std::clone::Clone` is not implemented for `Error`
    |
    = note: required by `std::clone::Clone::clone`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Clone-tuple-struct.stderr

@@ -5,6 +5,7 @@ LL |     Error
    |     ^^^^^ the trait `std::clone::Clone` is not implemented for `Error`
    |
    = note: required by `std::clone::Clone::clone`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Debug-enum-struct-variant.stderr

@@ -8,6 +8,7 @@ LL |      x: Error
    = note: add `#[derive(Debug)]` or manually implement `std::fmt::Debug`
    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&Error`
    = note: required for the cast to the object type `dyn std::fmt::Debug`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Debug-enum.stderr

@@ -8,6 +8,7 @@ LL |      Error
    = note: add `#[derive(Debug)]` or manually implement `std::fmt::Debug`
    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&Error`
    = note: required for the cast to the object type `dyn std::fmt::Debug`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Debug-struct.stderr

@@ -8,6 +8,7 @@ LL |     x: Error
    = note: add `#[derive(Debug)]` or manually implement `std::fmt::Debug`
    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&Error`
    = note: required for the cast to the object type `dyn std::fmt::Debug`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Debug-tuple-struct.stderr

@@ -8,6 +8,7 @@ LL |     Error
    = note: add `#[derive(Debug)]` or manually implement `std::fmt::Debug`
    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&Error`
    = note: required for the cast to the object type `dyn std::fmt::Debug`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Default-struct.stderr

@@ -5,6 +5,7 @@ LL |     x: Error
    |     ^^^^^^^^ the trait `std::default::Default` is not implemented for `Error`
    |
    = note: required by `std::default::Default::default`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Default-tuple-struct.stderr

@@ -5,6 +5,7 @@ LL |     Error
    |     ^^^^^ the trait `std::default::Default` is not implemented for `Error`
    |
    = note: required by `std::default::Default::default`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Eq-enum-struct-variant.stderr

@@ -5,6 +5,7 @@ LL |      x: Error
    |      ^^^^^^^^ the trait `std::cmp::Eq` is not implemented for `Error`
    |
    = note: required by `std::cmp::AssertParamIsEq`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Eq-enum.stderr

@@ -5,6 +5,7 @@ LL |      Error
    |      ^^^^^ the trait `std::cmp::Eq` is not implemented for `Error`
    |
    = note: required by `std::cmp::AssertParamIsEq`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Eq-struct.stderr

@@ -5,6 +5,7 @@ LL |     x: Error
    |     ^^^^^^^^ the trait `std::cmp::Eq` is not implemented for `Error`
    |
    = note: required by `std::cmp::AssertParamIsEq`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Eq-tuple-struct.stderr

@@ -5,6 +5,7 @@ LL |     Error
    |     ^^^^^ the trait `std::cmp::Eq` is not implemented for `Error`
    |
    = note: required by `std::cmp::AssertParamIsEq`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Hash-enum-struct-variant.stderr

@@ -8,6 +8,8 @@ LL |      x: Error
    |
 LL |     fn hash<H: Hasher>(&self, state: &mut H);
    |             - required by this bound in `std::hash::Hash::hash`
+   |
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Hash-enum.stderr

@@ -8,6 +8,8 @@ LL |      Error
    |
 LL |     fn hash<H: Hasher>(&self, state: &mut H);
    |             - required by this bound in `std::hash::Hash::hash`
+   |
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Hash-struct.stderr

@@ -8,6 +8,8 @@ LL |     x: Error
    |
 LL |     fn hash<H: Hasher>(&self, state: &mut H);
    |             - required by this bound in `std::hash::Hash::hash`
+   |
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Hash-tuple-struct.stderr

@@ -8,6 +8,8 @@ LL |     Error
    |
 LL |     fn hash<H: Hasher>(&self, state: &mut H);
    |             - required by this bound in `std::hash::Hash::hash`
+   |
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Ord-enum-struct-variant.stderr

@@ -5,6 +5,7 @@ LL |      x: Error
    |      ^^^^^^^^ the trait `std::cmp::Ord` is not implemented for `Error`
    |
    = note: required by `std::cmp::Ord::cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Ord-enum.stderr

@@ -5,6 +5,7 @@ LL |      Error
    |      ^^^^^ the trait `std::cmp::Ord` is not implemented for `Error`
    |
    = note: required by `std::cmp::Ord::cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Ord-struct.stderr

@@ -5,6 +5,7 @@ LL |     x: Error
    |     ^^^^^^^^ the trait `std::cmp::Ord` is not implemented for `Error`
    |
    = note: required by `std::cmp::Ord::cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-Ord-tuple-struct.stderr

@@ -5,6 +5,7 @@ LL |     Error
    |     ^^^^^ the trait `std::cmp::Ord` is not implemented for `Error`
    |
    = note: required by `std::cmp::Ord::cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/derives/derives-span-PartialEq-enum-struct-variant.stderr

@@ -5,6 +5,7 @@ LL |      x: Error
    |      ^^^^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0369]: binary operation `!=` cannot be applied to type `Error`
   --> $DIR/derives-span-PartialEq-enum-struct-variant.rs:13:6
@@ -13,6 +14,7 @@ LL |      x: Error
    |      ^^^^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/derives/derives-span-PartialEq-enum.stderr

@@ -5,6 +5,7 @@ LL |      Error
    |      ^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0369]: binary operation `!=` cannot be applied to type `Error`
   --> $DIR/derives-span-PartialEq-enum.rs:13:6
@@ -13,6 +14,7 @@ LL |      Error
    |      ^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/derives/derives-span-PartialEq-struct.stderr

@@ -5,6 +5,7 @@ LL |     x: Error
    |     ^^^^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0369]: binary operation `!=` cannot be applied to type `Error`
   --> $DIR/derives-span-PartialEq-struct.rs:12:5
@@ -13,6 +14,7 @@ LL |     x: Error
    |     ^^^^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/derives/derives-span-PartialEq-tuple-struct.stderr

@@ -5,6 +5,7 @@ LL |     Error
    |     ^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0369]: binary operation `!=` cannot be applied to type `Error`
   --> $DIR/derives-span-PartialEq-tuple-struct.rs:12:5
@@ -13,6 +14,7 @@ LL |     Error
    |     ^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/derives/derives-span-PartialOrd-enum-struct-variant.stderr

@@ -6,6 +6,7 @@ LL |      x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:13:6
@@ -15,6 +16,7 @@ LL |      x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:13:6
@@ -24,6 +26,7 @@ LL |      x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:13:6
@@ -33,6 +36,7 @@ LL |      x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:13:6
@@ -42,6 +46,7 @@ LL |      x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 5 previous errors
 

src/test/ui/derives/derives-span-PartialOrd-enum.stderr

@@ -6,6 +6,7 @@ LL |      Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-enum.rs:13:6
@@ -15,6 +16,7 @@ LL |      Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-enum.rs:13:6
@@ -24,6 +26,7 @@ LL |      Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-enum.rs:13:6
@@ -33,6 +36,7 @@ LL |      Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-enum.rs:13:6
@@ -42,6 +46,7 @@ LL |      Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 5 previous errors
 

src/test/ui/derives/derives-span-PartialOrd-struct.stderr

@@ -6,6 +6,7 @@ LL |     x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-struct.rs:12:5
@@ -15,6 +16,7 @@ LL |     x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-struct.rs:12:5
@@ -24,6 +26,7 @@ LL |     x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-struct.rs:12:5
@@ -33,6 +36,7 @@ LL |     x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-struct.rs:12:5
@@ -42,6 +46,7 @@ LL |     x: Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 5 previous errors
 

src/test/ui/derives/derives-span-PartialOrd-tuple-struct.stderr

@@ -6,6 +6,7 @@ LL |     Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-tuple-struct.rs:12:5
@@ -15,6 +16,7 @@ LL |     Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-tuple-struct.rs:12:5
@@ -24,6 +26,7 @@ LL |     Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-tuple-struct.rs:12:5
@@ -33,6 +36,7 @@ LL |     Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: can't compare `Error` with `Error`
   --> $DIR/derives-span-PartialOrd-tuple-struct.rs:12:5
@@ -42,6 +46,7 @@ LL |     Error
    |
    = help: the trait `std::cmp::PartialOrd` is not implemented for `Error`
    = note: required by `std::cmp::PartialOrd::partial_cmp`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 5 previous errors
 

src/test/ui/derives/deriving-no-inner-impl-error-message.stderr

@@ -5,6 +5,7 @@ LL |     x: NoCloneOrEq
    |     ^^^^^^^^^^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `NoCloneOrEq`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0369]: binary operation `!=` cannot be applied to type `NoCloneOrEq`
   --> $DIR/deriving-no-inner-impl-error-message.rs:5:5
@@ -13,6 +14,7 @@ LL |     x: NoCloneOrEq
    |     ^^^^^^^^^^^^^^
    |
    = note: an implementation of `std::cmp::PartialEq` might be missing for `NoCloneOrEq`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0277]: the trait bound `NoCloneOrEq: std::clone::Clone` is not satisfied
   --> $DIR/deriving-no-inner-impl-error-message.rs:10:5
@@ -21,6 +23,7 @@ LL |     x: NoCloneOrEq
    |     ^^^^^^^^^^^^^^ the trait `std::clone::Clone` is not implemented for `NoCloneOrEq`
    |
    = note: required by `std::clone::Clone::clone`
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 3 previous errors
 

src/test/ui/derives/deriving-with-repr-packed.stderr

@@ -11,6 +11,7 @@ LL | #![deny(safe_packed_borrows)]
    |         ^^^^^^^^^^^^^^^^^^^
    = 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 #46043 <https://github.com/rust-lang/rust/issues/46043>
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `#[derive]` can't be used on a `#[repr(packed)]` struct with type or const parameters (error E0133)
   --> $DIR/deriving-with-repr-packed.rs:8:23
@@ -20,6 +21,7 @@ LL | #[derive(Copy, Clone, PartialEq, Eq)]
    |
    = 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 #46043 <https://github.com/rust-lang/rust/issues/46043>
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
   --> $DIR/deriving-with-repr-packed.rs:16:10
@@ -29,6 +31,7 @@ LL | #[derive(PartialEq, Eq)]
    |
    = 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 #46043 <https://github.com/rust-lang/rust/issues/46043>
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `#[derive]` can't be used on a `#[repr(packed)]` struct that does not derive Copy (error E0133)
   --> $DIR/deriving-with-repr-packed.rs:25:10
@@ -38,6 +41,7 @@ LL | #[derive(PartialEq)]
    |
    = 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 #46043 <https://github.com/rust-lang/rust/issues/46043>
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 4 previous errors
 

src/test/ui/did_you_mean/bad-assoc-expr.stderr

@@ -54,6 +54,8 @@ LL |     ($ty: ty) => ($ty::clone(&0))
 ...
 LL |     expr!(u8);
    |     ---------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 9 previous errors
 

src/test/ui/did_you_mean/bad-assoc-pat.stderr

@@ -36,6 +36,8 @@ LL |     ($ty: ty) => ($ty::AssocItem)
 ...
 LL |         pat!(u8) => {}
    |         -------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0599]: no associated item named `AssocItem` found for slice `[u8]` in the current scope
   --> $DIR/bad-assoc-pat.rs:3:15
@@ -69,6 +71,8 @@ LL |     ($ty: ty) => ($ty::AssocItem)
 ...
 LL |         pat!(u8) => {}
    |         -------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0599]: no associated item named `AssocItem` found for type `u8` in the current scope
   --> $DIR/bad-assoc-pat.rs:32:16

src/test/ui/did_you_mean/bad-assoc-ty.stderr

@@ -54,6 +54,8 @@ LL |     ($ty: ty) => ($ty::AssocTy);
 ...
 LL | type J = ty!(u8);
    |          ------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0223]: ambiguous associated type
   --> $DIR/bad-assoc-ty.rs:1:10
@@ -111,6 +113,8 @@ LL |     ($ty: ty) => ($ty::AssocTy);
 ...
 LL | type J = ty!(u8);
    |          ------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0223]: ambiguous associated type
   --> $DIR/bad-assoc-ty.rs:44:10

src/test/ui/did_you_mean/recursion_limit_macro.stderr

@@ -8,6 +8,7 @@ LL |     recurse!(0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9);
    |     -------------------------------------------------- in this macro invocation
    |
    = help: consider adding a `#![recursion_limit="20"]` attribute to your crate (`recursion_limit_macro`)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/dollar-crate/dollar-crate-is-keyword-2.stderr

@@ -6,6 +6,8 @@ LL |         use a::$crate::b;
 ...
 LL | m!();
    | ----- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0432]: unresolved import `a::$crate`
   --> $DIR/dollar-crate-is-keyword-2.rs:5:13
@@ -15,6 +17,8 @@ LL |         use a::$crate;
 ...
 LL | m!();
    | ----- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0433]: failed to resolve: `$crate` in paths can only be used in start position
   --> $DIR/dollar-crate-is-keyword-2.rs:7:21
@@ -24,6 +28,8 @@ LL |         type A = a::$crate;
 ...
 LL | m!();
    | ----- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 3 previous errors
 

src/test/ui/dollar-crate/dollar-crate-is-keyword.stderr

@@ -6,6 +6,8 @@ LL |             struct $crate {}
 ...
 LL | m!();
    | ----- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: expected identifier, found reserved identifier `$crate`
   --> $DIR/dollar-crate-is-keyword.rs:10:23
@@ -15,6 +17,8 @@ LL |         use $crate as $crate;
 ...
 LL | m!();
    | ----- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `$crate` may not be imported
   --> $DIR/dollar-crate-is-keyword.rs:9:9
@@ -24,6 +28,8 @@ LL |         use $crate;
 ...
 LL | m!();
    | ----- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `$crate` may not be imported
   --> $DIR/dollar-crate-is-keyword.rs:10:9
@@ -33,6 +39,8 @@ LL |         use $crate as $crate;
 ...
 LL | m!();
    | ----- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 4 previous errors
 

src/test/ui/editions/edition-imports-2015.stderr

@@ -4,7 +4,7 @@ error: cannot glob-import all possible crates
 LL |     gen_glob!();
    |     ^^^^^^^^^^^^
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/editions/edition-imports-2018.stderr

@@ -4,7 +4,7 @@ error: cannot glob-import all possible crates
 LL |     gen_glob!();
    |     ^^^^^^^^^^^^
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/editions/edition-imports-virtual-2015-gated.stderr

@@ -4,7 +4,7 @@ error[E0432]: unresolved import `E`
 LL |     gen_gated!();
    |     ^^^^^^^^^^^^^ could not find `E` in `{{root}}`
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/editions/edition-keywords-2015-2018-expansion.stderr

@@ -4,7 +4,7 @@ error: expected identifier, found keyword `async`
 LL |     produces_async! {}
    |     ^^^^^^^^^^^^^^^^^^ expected identifier, found keyword
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 help: you can escape reserved keywords to use them as identifiers
    |
 LL | () => (pub fn r#async () { })

src/test/ui/editions/edition-keywords-2018-2018-expansion.stderr

@@ -4,7 +4,7 @@ error: expected identifier, found keyword `async`
 LL |     produces_async! {}
    |     ^^^^^^^^^^^^^^^^^^ expected identifier, found keyword
    |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 help: you can escape reserved keywords to use them as identifiers
    |
 LL | () => (pub fn r#async () { })

src/test/ui/error-codes/E0184.stderr

@@ -3,6 +3,8 @@ error[E0184]: the trait `Copy` may not be implemented for this type; the type ha
    |
 LL | #[derive(Copy)]
    |          ^^^^ Copy not allowed on types with destructors
+   |
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/error-codes/E0665.stderr

@@ -3,6 +3,8 @@ error[E0665]: `Default` cannot be derived for enums, only structs
    |
 LL | #[derive(Default)]
    |          ^^^^^^^
+   |
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/exclusive-drop-and-copy.stderr

@@ -3,12 +3,16 @@ error[E0184]: the trait `Copy` may not be implemented for this type; the type ha
    |
 LL | #[derive(Copy, Clone)]
    |          ^^^^ Copy not allowed on types with destructors
+   |
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0184]: the trait `Copy` may not be implemented for this type; the type has a destructor
   --> $DIR/exclusive-drop-and-copy.rs:10:10
    |
 LL | #[derive(Copy, Clone)]
    |          ^^^^ Copy not allowed on types with destructors
+   |
+   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/feature-gates/feature-gate-allow-internal-unsafe-nested-macro.stderr

@@ -8,6 +8,7 @@ LL | bar!();
    | ------- in this macro invocation
    |
    = help: add `#![feature(allow_internal_unsafe)]` to the crate attributes to enable
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/feature-gates/feature-gate-allow-internal-unstable-nested-macro.stderr

@@ -8,6 +8,7 @@ LL | bar!();
    | ------- in this macro invocation
    |
    = help: add `#![feature(allow_internal_unstable)]` to the crate attributes to enable
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/feature-gates/feature-gate-concat_idents2.stderr

@@ -12,6 +12,8 @@ error[E0425]: cannot find value `ab` in this scope
    |
 LL |     concat_idents!(a, b);
    |     ^^^^^^^^^^^^^^^^^^^^^ not found in this scope
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-dotdotdot-bad-syntax.stderr

@@ -30,6 +30,8 @@ LL |             let ...$e;
 ...
 LL |     mac!(0);
    |     -------- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 5 previous errors
 

src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-no-end.stderr

@@ -40,6 +40,7 @@ LL |     mac!(0);
    |     -------- in this macro invocation
    |
    = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0586]: inclusive range with no end
   --> $DIR/half-open-range-pats-inclusive-no-end.rs:21:19
@@ -51,6 +52,7 @@ LL |     mac!(0);
    |     -------- in this macro invocation
    |
    = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`)
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 6 previous errors
 

src/test/ui/hr-subtype/hr-subtype.bound_a_b_ret_a_vs_bound_a_ret_a.stderr

@@ -10,6 +10,7 @@ LL | |                                             for<'a>    fn(&'a u32, &'a u3
    |
    = note: expected enum `std::option::Option<for<'a, 'b> fn(&'a u32, &'b u32) -> &'a u32>`
               found enum `std::option::Option<for<'a> fn(&'a u32, &'a u32) -> &'a u32>`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/hr-subtype/hr-subtype.bound_a_b_vs_bound_a.stderr

@@ -10,6 +10,7 @@ LL | |                                 for<'a>    fn(&'a u32, &'a u32)) }
    |
    = note: expected enum `std::option::Option<for<'a, 'b> fn(&'a u32, &'b u32)>`
               found enum `std::option::Option<for<'a> fn(&'a u32, &'a u32)>`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/hr-subtype/hr-subtype.bound_a_vs_free_x.stderr

@@ -10,6 +10,7 @@ LL | |                              fn(&'x u32)) }
    |
    = note: expected enum `std::option::Option<for<'a> fn(&'a u32)>`
               found enum `std::option::Option<fn(&'x u32)>`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/hr-subtype/hr-subtype.bound_co_a_b_vs_bound_co_a.stderr

@@ -10,6 +10,7 @@ LL | |                                       for<'a>    fn(Co<'a>, Co<'a>)) }
    |
    = note: expected enum `std::option::Option<for<'a, 'b> fn(Co<'a>, Co<'b>)>`
               found enum `std::option::Option<for<'a> fn(Co<'a>, Co<'a>)>`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/hr-subtype/hr-subtype.bound_co_a_co_b_ret_contra_a.stderr

@@ -10,6 +10,7 @@ LL | |                                         for<'a>    fn(Co<'a>, Co<'a>) ->
    |
    = note: expected enum `std::option::Option<for<'a, 'b> fn(Co<'a>, Co<'b>) -> Contra<'a>>`
               found enum `std::option::Option<for<'a> fn(Co<'a>, Co<'a>) -> Contra<'a>>`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/hr-subtype/hr-subtype.bound_contra_a_contra_b_ret_co_a.stderr

@@ -10,6 +10,7 @@ LL | |                                             for<'a>    fn(Contra<'a>, Con
    |
    = note: expected enum `std::option::Option<for<'a, 'b> fn(Contra<'a>, Contra<'b>) -> Co<'a>>`
               found enum `std::option::Option<for<'a> fn(Contra<'a>, Contra<'a>) -> Co<'a>>`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/hr-subtype/hr-subtype.bound_inv_a_b_vs_bound_inv_a.stderr

@@ -10,6 +10,7 @@ LL | |                                         for<'a>    fn(Inv<'a>, Inv<'a>))
    |
    = note: expected enum `std::option::Option<for<'a, 'b> fn(Inv<'a>, Inv<'b>)>`
               found enum `std::option::Option<for<'a> fn(Inv<'a>, Inv<'a>)>`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

src/test/ui/hr-subtype/hr-subtype.free_inv_x_vs_free_inv_y.nll.stderr

@@ -13,6 +13,7 @@ LL | |                                     fn(Inv<'y>)) }
    | |__________________________________________________- in this macro invocation
    |
    = help: consider adding the following bound: `'x: 'y`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: lifetime may not live long enough
   --> $DIR/hr-subtype.rs:39:13
@@ -29,6 +30,7 @@ LL | |                                     fn(Inv<'y>)) }
    | |__________________________________________________- in this macro invocation
    |
    = help: consider adding the following bound: `'x: 'y`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/hr-subtype/hr-subtype.free_inv_x_vs_free_inv_y.stderr

@@ -28,6 +28,7 @@ LL |           fn subtype<'x,'y:'x,'z:'y>() {
 LL | / check! { free_inv_x_vs_free_inv_y: (fn(Inv<'x>),
 LL | |                                     fn(Inv<'y>)) }
    | |__________________________________________________- in this macro invocation
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0308]: mismatched types
   --> $DIR/hr-subtype.rs:39:26
@@ -59,6 +60,7 @@ LL |           fn supertype<'x,'y:'x,'z:'y>() {
 LL | / check! { free_inv_x_vs_free_inv_y: (fn(Inv<'x>),
 LL | |                                     fn(Inv<'y>)) }
    | |__________________________________________________- in this macro invocation
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 2 previous errors
 

src/test/ui/hr-subtype/hr-subtype.free_x_vs_free_y.nll.stderr

@@ -13,6 +13,7 @@ LL | |                             fn(&'y u32)) }
    | |__________________________________________- in this macro invocation
    |
    = help: consider adding the following bound: `'x: 'y`
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error