Rollup merge of #66049 - RalfJung:missing-spans, r=alexcrichton

consistent handling of missing sysroot spans

Due to https://github.com/rust-lang/rust/issues/53081, sysroot spans (pointing to code in libcore/libstd/...) fails to print on some x86 runners. This consolidates the ignore directives for that and references the relevant issue.

I also did that for the generated derive-error-span tests -- but there the script and the tests were not entirely in sync any more since https://github.com/rust-lang/rust/pull/64151. Cc @estebank @varkor

src/etc/generate-deriving-span-tests.py

@@ -14,8 +14,7 @@ TEST_DIR = os.path.abspath(
     os.path.join(os.path.dirname(__file__), '../test/ui/derives/'))
 
 TEMPLATE = """\
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 {error_deriving}

src/test/ui/async-await/issues/issue-62009-1.rs

@@ -1,6 +1,5 @@
 // edition:2018
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 
 async fn print_dur() {}
 

src/test/ui/async-await/issues/issue-62009-1.stderr

@@ -1,5 +1,5 @@
 error[E0728]: `await` is only allowed inside `async` functions and blocks
-  --> $DIR/issue-62009-1.rs:8:5
+  --> $DIR/issue-62009-1.rs:7:5
    |
 LL | fn main() {
    |    ---- this is not `async`
@@ -7,7 +7,7 @@ LL |     async { let (); }.await;
    |     ^^^^^^^^^^^^^^^^^^^^^^^ only allowed inside `async` functions and blocks
 
 error[E0728]: `await` is only allowed inside `async` functions and blocks
-  --> $DIR/issue-62009-1.rs:10:5
+  --> $DIR/issue-62009-1.rs:9:5
    |
 LL |   fn main() {
    |      ---- this is not `async`
@@ -19,7 +19,7 @@ LL | |     }.await;
    | |___________^ only allowed inside `async` functions and blocks
 
 error[E0728]: `await` is only allowed inside `async` functions and blocks
-  --> $DIR/issue-62009-1.rs:14:5
+  --> $DIR/issue-62009-1.rs:13:5
    |
 LL | fn main() {
    |    ---- this is not `async`
@@ -27,11 +27,11 @@ LL | fn main() {
 LL |     (|_| 2333).await;
    |     ^^^^^^^^^^^^^^^^ only allowed inside `async` functions and blocks
 
-error[E0277]: the trait bound `[closure@$DIR/issue-62009-1.rs:14:5: 14:15]: std::future::Future` is not satisfied
+error[E0277]: the trait bound `[closure@$DIR/issue-62009-1.rs:13:5: 13:15]: std::future::Future` is not satisfied
-  --> $DIR/issue-62009-1.rs:14:5
+  --> $DIR/issue-62009-1.rs:13:5
    |
 LL |     (|_| 2333).await;
-   |     ^^^^^^^^^^^^^^^^ the trait `std::future::Future` is not implemented for `[closure@$DIR/issue-62009-1.rs:14:5: 14:15]`
+   |     ^^^^^^^^^^^^^^^^ the trait `std::future::Future` is not implemented for `[closure@$DIR/issue-62009-1.rs:13:5: 13:15]`
    | 
   ::: $SRC_DIR/libstd/future.rs:LL:COL
    |

src/test/ui/closures/closure-move-sync.rs

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 use std::thread;
 use std::sync::mpsc::channel;
 

src/test/ui/closures/closure-move-sync.stderr

@@ -1,5 +1,5 @@
 error[E0277]: `std::sync::mpsc::Receiver<()>` cannot be shared between threads safely
-  --> $DIR/closure-move-sync.rs:8:13
+  --> $DIR/closure-move-sync.rs:7:13
    |
 LL |     let t = thread::spawn(|| {
    |             ^^^^^^^^^^^^^ `std::sync::mpsc::Receiver<()>` cannot be shared between threads safely
@@ -11,10 +11,10 @@ LL |     F: FnOnce() -> T, F: Send + 'static, T: Send + 'static
    |
    = help: the trait `std::marker::Sync` is not implemented for `std::sync::mpsc::Receiver<()>`
    = note: required because of the requirements on the impl of `std::marker::Send` for `&std::sync::mpsc::Receiver<()>`
-   = note: required because it appears within the type `[closure@$DIR/closure-move-sync.rs:8:27: 11:6 recv:&std::sync::mpsc::Receiver<()>]`
+   = note: required because it appears within the type `[closure@$DIR/closure-move-sync.rs:7:27: 10:6 recv:&std::sync::mpsc::Receiver<()>]`
 
 error[E0277]: `std::sync::mpsc::Sender<()>` cannot be shared between threads safely
-  --> $DIR/closure-move-sync.rs:20:5
+  --> $DIR/closure-move-sync.rs:19:5
    |
 LL |     thread::spawn(|| tx.send(()).unwrap());
    |     ^^^^^^^^^^^^^ `std::sync::mpsc::Sender<()>` cannot be shared between threads safely
@@ -26,7 +26,7 @@ LL |     F: FnOnce() -> T, F: Send + 'static, T: Send + 'static
    |
    = help: the trait `std::marker::Sync` is not implemented for `std::sync::mpsc::Sender<()>`
    = note: required because of the requirements on the impl of `std::marker::Send` for `&std::sync::mpsc::Sender<()>`
-   = note: required because it appears within the type `[closure@$DIR/closure-move-sync.rs:20:19: 20:42 tx:&std::sync::mpsc::Sender<()>]`
+   = note: required because it appears within the type `[closure@$DIR/closure-move-sync.rs:19:19: 19:42 tx:&std::sync::mpsc::Sender<()>]`
 
 error: aborting due to 2 previous errors
 

src/test/ui/consts/const-size_of-cycle.rs

@@ -1,5 +1,4 @@
-// ignore-musl
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ignore-x86
 // error-pattern: cycle detected
 
 struct Foo {

src/test/ui/consts/const-size_of-cycle.stderr

@@ -1,11 +1,11 @@
 error[E0391]: cycle detected when const-evaluating + checking `Foo::bytes::{{constant}}#0`
-  --> $DIR/const-size_of-cycle.rs:6:17
+  --> $DIR/const-size_of-cycle.rs:5:17
    |
 LL |     bytes: [u8; std::mem::size_of::<Foo>()]
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: ...which requires const-evaluating + checking `Foo::bytes::{{constant}}#0`...
-  --> $DIR/const-size_of-cycle.rs:6:17
+  --> $DIR/const-size_of-cycle.rs:5:17
    |
 LL |     bytes: [u8; std::mem::size_of::<Foo>()]
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -23,7 +23,7 @@ LL |     pub fn size_of<T>() -> usize;
    = note: ...which requires normalizing `ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: All, def_id: None }, value: [u8; _] }`...
    = note: ...which again requires const-evaluating + checking `Foo::bytes::{{constant}}#0`, completing the cycle
 note: cycle used when processing `Foo`
-  --> $DIR/const-size_of-cycle.rs:5:1
+  --> $DIR/const-size_of-cycle.rs:4:1
    |
 LL | struct Foo {
    | ^^^^^^^^^^

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::clone::Clone` is not satisfied
-  --> $DIR/derives-span-Clone-enum-struct-variant.rs:9:6
+  --> $DIR/derives-span-Clone-enum-struct-variant.rs:10:6
    |
 LL |      x: Error
    |      ^^^^^^^^ the trait `std::clone::Clone` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::clone::Clone` is not satisfied
-  --> $DIR/derives-span-Clone-enum.rs:9:6
+  --> $DIR/derives-span-Clone-enum.rs:10:6
    |
 LL |      Error
    |      ^^^^^ the trait `std::clone::Clone` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::clone::Clone` is not satisfied
-  --> $DIR/derives-span-Clone-struct.rs:8:5
+  --> $DIR/derives-span-Clone-struct.rs:9:5
    |
 LL |     x: Error
    |     ^^^^^^^^ the trait `std::clone::Clone` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::clone::Clone` is not satisfied
-  --> $DIR/derives-span-Clone-tuple-struct.rs:8:5
+  --> $DIR/derives-span-Clone-tuple-struct.rs:9:5
    |
 LL |     Error
    |     ^^^^^ the trait `std::clone::Clone` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: `Error` doesn't implement `std::fmt::Debug`
-  --> $DIR/derives-span-Debug-enum-struct-variant.rs:9:6
+  --> $DIR/derives-span-Debug-enum-struct-variant.rs:10:6
    |
 LL |      x: Error
    |      ^^^^^^^^ `Error` cannot be formatted using `{:?}`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: `Error` doesn't implement `std::fmt::Debug`
-  --> $DIR/derives-span-Debug-enum.rs:9:6
+  --> $DIR/derives-span-Debug-enum.rs:10:6
    |
 LL |      Error
    |      ^^^^^ `Error` cannot be formatted using `{:?}`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: `Error` doesn't implement `std::fmt::Debug`
-  --> $DIR/derives-span-Debug-struct.rs:8:5
+  --> $DIR/derives-span-Debug-struct.rs:9:5
    |
 LL |     x: Error
    |     ^^^^^^^^ `Error` cannot be formatted using `{:?}`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: `Error` doesn't implement `std::fmt::Debug`
-  --> $DIR/derives-span-Debug-tuple-struct.rs:8:5
+  --> $DIR/derives-span-Debug-tuple-struct.rs:9:5
    |
 LL |     Error
    |     ^^^^^ `Error` cannot be formatted using `{:?}`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::default::Default` is not satisfied
-  --> $DIR/derives-span-Default-struct.rs:8:5
+  --> $DIR/derives-span-Default-struct.rs:9:5
    |
 LL |     x: Error
    |     ^^^^^^^^ the trait `std::default::Default` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::default::Default` is not satisfied
-  --> $DIR/derives-span-Default-tuple-struct.rs:8:5
+  --> $DIR/derives-span-Default-tuple-struct.rs:9:5
    |
 LL |     Error
    |     ^^^^^ the trait `std::default::Default` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::cmp::Eq` is not satisfied
-  --> $DIR/derives-span-Eq-enum-struct-variant.rs:9:6
+  --> $DIR/derives-span-Eq-enum-struct-variant.rs:10:6
    |
 LL |      x: Error
    |      ^^^^^^^^ the trait `std::cmp::Eq` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::cmp::Eq` is not satisfied
-  --> $DIR/derives-span-Eq-enum.rs:9:6
+  --> $DIR/derives-span-Eq-enum.rs:10:6
    |
 LL |      Error
    |      ^^^^^ the trait `std::cmp::Eq` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::cmp::Eq` is not satisfied
-  --> $DIR/derives-span-Eq-struct.rs:8:5
+  --> $DIR/derives-span-Eq-struct.rs:9:5
    |
 LL |     x: Error
    |     ^^^^^^^^ the trait `std::cmp::Eq` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::cmp::Eq` is not satisfied
-  --> $DIR/derives-span-Eq-tuple-struct.rs:8:5
+  --> $DIR/derives-span-Eq-tuple-struct.rs:9:5
    |
 LL |     Error
    |     ^^^^^ the trait `std::cmp::Eq` is not implemented for `Error`

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

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::hash::Hash` is not satisfied
-  --> $DIR/derives-span-Hash-enum-struct-variant.rs:11:6
+  --> $DIR/derives-span-Hash-enum-struct-variant.rs:10:6
    |
 LL |      x: Error
    |      ^^^^^^^^ the trait `std::hash::Hash` is not implemented for `Error`

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

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::hash::Hash` is not satisfied
-  --> $DIR/derives-span-Hash-enum.rs:11:6
+  --> $DIR/derives-span-Hash-enum.rs:10:6
    |
 LL |      Error
    |      ^^^^^ the trait `std::hash::Hash` is not implemented for `Error`

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

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::hash::Hash` is not satisfied
-  --> $DIR/derives-span-Hash-struct.rs:10:5
+  --> $DIR/derives-span-Hash-struct.rs:9:5
    |
 LL |     x: Error
    |     ^^^^^^^^ the trait `std::hash::Hash` is not implemented for `Error`

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

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::hash::Hash` is not satisfied
-  --> $DIR/derives-span-Hash-tuple-struct.rs:10:5
+  --> $DIR/derives-span-Hash-tuple-struct.rs:9:5
    |
 LL |     Error
    |     ^^^^^ the trait `std::hash::Hash` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(Eq,PartialOrd,PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::cmp::Ord` is not satisfied
-  --> $DIR/derives-span-Ord-enum-struct-variant.rs:9:6
+  --> $DIR/derives-span-Ord-enum-struct-variant.rs:10:6
    |
 LL |      x: Error
    |      ^^^^^^^^ the trait `std::cmp::Ord` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(Eq,PartialOrd,PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::cmp::Ord` is not satisfied
-  --> $DIR/derives-span-Ord-enum.rs:9:6
+  --> $DIR/derives-span-Ord-enum.rs:10:6
    |
 LL |      Error
    |      ^^^^^ the trait `std::cmp::Ord` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(Eq,PartialOrd,PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::cmp::Ord` is not satisfied
-  --> $DIR/derives-span-Ord-struct.rs:8:5
+  --> $DIR/derives-span-Ord-struct.rs:9:5
    |
 LL |     x: Error
    |     ^^^^^^^^ the trait `std::cmp::Ord` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(Eq,PartialOrd,PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Error: std::cmp::Ord` is not satisfied
-  --> $DIR/derives-span-Ord-tuple-struct.rs:8:5
+  --> $DIR/derives-span-Ord-tuple-struct.rs:9:5
    |
 LL |     Error
    |     ^^^^^ the trait `std::cmp::Ord` is not implemented for `Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0369]: binary operation `==` cannot be applied to type `Error`
-  --> $DIR/derives-span-PartialEq-enum-struct-variant.rs:9:6
+  --> $DIR/derives-span-PartialEq-enum-struct-variant.rs:10:6
    |
 LL |      x: Error
    |      ^^^^^^^^
@@ -7,7 +7,7 @@ LL |      x: Error
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
 
 error[E0369]: binary operation `!=` cannot be applied to type `Error`
-  --> $DIR/derives-span-PartialEq-enum-struct-variant.rs:9:6
+  --> $DIR/derives-span-PartialEq-enum-struct-variant.rs:10:6
    |
 LL |      x: Error
    |      ^^^^^^^^

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0369]: binary operation `==` cannot be applied to type `Error`
-  --> $DIR/derives-span-PartialEq-enum.rs:9:6
+  --> $DIR/derives-span-PartialEq-enum.rs:10:6
    |
 LL |      Error
    |      ^^^^^
@@ -7,7 +7,7 @@ LL |      Error
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
 
 error[E0369]: binary operation `!=` cannot be applied to type `Error`
-  --> $DIR/derives-span-PartialEq-enum.rs:9:6
+  --> $DIR/derives-span-PartialEq-enum.rs:10:6
    |
 LL |      Error
    |      ^^^^^

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0369]: binary operation `==` cannot be applied to type `Error`
-  --> $DIR/derives-span-PartialEq-struct.rs:8:5
+  --> $DIR/derives-span-PartialEq-struct.rs:9:5
    |
 LL |     x: Error
    |     ^^^^^^^^
@@ -7,7 +7,7 @@ LL |     x: Error
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
 
 error[E0369]: binary operation `!=` cannot be applied to type `Error`
-  --> $DIR/derives-span-PartialEq-struct.rs:8:5
+  --> $DIR/derives-span-PartialEq-struct.rs:9:5
    |
 LL |     x: Error
    |     ^^^^^^^^

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 

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

@@ -1,5 +1,5 @@
 error[E0369]: binary operation `==` cannot be applied to type `Error`
-  --> $DIR/derives-span-PartialEq-tuple-struct.rs:8:5
+  --> $DIR/derives-span-PartialEq-tuple-struct.rs:9:5
    |
 LL |     Error
    |     ^^^^^
@@ -7,7 +7,7 @@ LL |     Error
    = note: an implementation of `std::cmp::PartialEq` might be missing for `Error`
 
 error[E0369]: binary operation `!=` cannot be applied to type `Error`
-  --> $DIR/derives-span-PartialEq-tuple-struct.rs:8:5
+  --> $DIR/derives-span-PartialEq-tuple-struct.rs:9:5
    |
 LL |     Error
    |     ^^^^^

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: can't compare `Error` with `Error`
-  --> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:9:6
+  --> $DIR/derives-span-PartialOrd-enum-struct-variant.rs:10:6
    |
 LL |      x: Error
    |      ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: can't compare `Error` with `Error`
-  --> $DIR/derives-span-PartialOrd-enum.rs:9:6
+  --> $DIR/derives-span-PartialOrd-enum.rs:10:6
    |
 LL |      Error
    |      ^^^^^ no implementation for `Error < Error` and `Error > Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: can't compare `Error` with `Error`
-  --> $DIR/derives-span-PartialOrd-struct.rs:8:5
+  --> $DIR/derives-span-PartialOrd-struct.rs:9:5
    |
 LL |     x: Error
    |     ^^^^^^^^ no implementation for `Error < Error` and `Error > Error`

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

@@ -1,3 +1,4 @@
+// ignore-x86 FIXME: missing sysroot spans (#53081)
 // This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'
 
 #[derive(PartialEq)]

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

@@ -1,5 +1,5 @@
 error[E0277]: can't compare `Error` with `Error`
-  --> $DIR/derives-span-PartialOrd-tuple-struct.rs:8:5
+  --> $DIR/derives-span-PartialOrd-tuple-struct.rs:9:5
    |
 LL |     Error
    |     ^^^^^ no implementation for `Error < Error` and `Error > Error`

src/test/ui/impl-trait/impl-generic-mismatch.rs

@@ -1,5 +1,4 @@
-// ignore-musl
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ignore-x86
 
 use std::fmt::Debug;
 

src/test/ui/impl-trait/impl-generic-mismatch.stderr

@@ -1,5 +1,5 @@
 error[E0643]: method `foo` has incompatible signature for trait
-  --> $DIR/impl-generic-mismatch.rs:11:12
+  --> $DIR/impl-generic-mismatch.rs:10:12
    |
 LL |     fn foo(&self, _: &impl Debug);
    |                       ---------- declaration in trait here
@@ -13,7 +13,7 @@ LL |     fn foo(&self, _: &impl Debug) { }
    |          --           ^^^^^^^^^^
 
 error[E0643]: method `bar` has incompatible signature for trait
-  --> $DIR/impl-generic-mismatch.rs:20:23
+  --> $DIR/impl-generic-mismatch.rs:19:23
    |
 LL |     fn bar<U: Debug>(&self, _: &U);
    |            - declaration in trait here
@@ -27,7 +27,7 @@ LL |     fn bar<U: Debug>(&self, _: &U) { }
    |           ^^^^^^^^^^            ^
 
 error[E0643]: method `hash` has incompatible signature for trait
-  --> $DIR/impl-generic-mismatch.rs:31:33
+  --> $DIR/impl-generic-mismatch.rs:30:33
    |
 LL |     fn hash(&self, hasher: &mut impl Hasher) {}
    |                                 ^^^^^^^^^^^ expected generic parameter, found `impl Trait`

src/test/ui/imports/extern-prelude-extern-crate-restricted-shadowing.rs

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 // aux-build:two_macros.rs
 
 macro_rules! define_vec {

src/test/ui/imports/extern-prelude-extern-crate-restricted-shadowing.stderr

@@ -1,5 +1,5 @@
 error: macro-expanded `extern crate` items cannot shadow names passed with `--extern`
-  --> $DIR/extern-prelude-extern-crate-restricted-shadowing.rs:21:9
+  --> $DIR/extern-prelude-extern-crate-restricted-shadowing.rs:20:9
    |
 LL |         extern crate std as core;
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -8,13 +8,13 @@ LL | define_other_core!();
    | --------------------- in this macro invocation
 
 error[E0659]: `Vec` is ambiguous (macro-expanded name vs less macro-expanded name from outer scope during import/macro resolution)
-  --> $DIR/extern-prelude-extern-crate-restricted-shadowing.rs:15:9
+  --> $DIR/extern-prelude-extern-crate-restricted-shadowing.rs:14:9
    |
 LL |         Vec::panic!();
    |         ^^^ ambiguous name
    |
 note: `Vec` could refer to the crate imported here
-  --> $DIR/extern-prelude-extern-crate-restricted-shadowing.rs:7:9
+  --> $DIR/extern-prelude-extern-crate-restricted-shadowing.rs:6:9
    |
 LL |         extern crate std as Vec;
    |         ^^^^^^^^^^^^^^^^^^^^^^^^

src/test/ui/in-band-lifetimes/mismatched_trait_impl-2.rs

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 use std::ops::Deref;
 trait Trait {}
 

src/test/ui/in-band-lifetimes/mismatched_trait_impl-2.stderr

@@ -1,5 +1,5 @@
 error: `impl` item signature doesn't match `trait` item signature
-  --> $DIR/mismatched_trait_impl-2.rs:10:5
+  --> $DIR/mismatched_trait_impl-2.rs:9:5
    |
 LL |     fn deref(&self) -> &dyn Trait {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ found fn(&Struct) -> &dyn Trait

src/test/ui/interior-mutability/interior-mutability.rs

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 use std::cell::Cell;
 use std::panic::catch_unwind;
 fn main() {

src/test/ui/interior-mutability/interior-mutability.stderr

@@ -1,5 +1,5 @@
 error[E0277]: the type `std::cell::UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
-  --> $DIR/interior-mutability.rs:7:5
+  --> $DIR/interior-mutability.rs:6:5
    |
 LL |     catch_unwind(|| { x.set(23); });
    |     ^^^^^^^^^^^^ `std::cell::UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
@@ -12,7 +12,7 @@ LL | pub fn catch_unwind<F: FnOnce() -> R + UnwindSafe, R>(f: F) -> Result<R> {
    = help: within `std::cell::Cell<i32>`, the trait `std::panic::RefUnwindSafe` is not implemented for `std::cell::UnsafeCell<i32>`
    = note: required because it appears within the type `std::cell::Cell<i32>`
    = note: required because of the requirements on the impl of `std::panic::UnwindSafe` for `&std::cell::Cell<i32>`
-   = note: required because it appears within the type `[closure@$DIR/interior-mutability.rs:7:18: 7:35 x:&std::cell::Cell<i32>]`
+   = note: required because it appears within the type `[closure@$DIR/interior-mutability.rs:6:18: 6:35 x:&std::cell::Cell<i32>]`
 
 error: aborting due to previous error
 

src/test/ui/issues/issue-21160.rs

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 struct Bar;
 
 impl Bar {

src/test/ui/issues/issue-21160.stderr

@@ -1,5 +1,5 @@
 error[E0277]: the trait bound `Bar: std::hash::Hash` is not satisfied
-  --> $DIR/issue-21160.rs:10:12
+  --> $DIR/issue-21160.rs:9:12
    |
 LL | struct Foo(Bar);
    |            ^^^ the trait `std::hash::Hash` is not implemented for `Bar`

src/test/ui/issues/issue-27033.rs

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 fn main() {
     match Some(1) {
         None @ _ => {} //~ ERROR match bindings cannot shadow unit variants

src/test/ui/issues/issue-27033.stderr

@@ -1,5 +1,5 @@
 error[E0530]: match bindings cannot shadow unit variants
-  --> $DIR/issue-27033.rs:5:9
+  --> $DIR/issue-27033.rs:4:9
    |
 LL |         None @ _ => {}
    |         ^^^^ cannot be named the same as a unit variant
@@ -10,7 +10,7 @@ LL | pub use crate::option::Option::{self, Some, None};
    |                                             ---- the unit variant `None` is defined here
 
 error[E0530]: match bindings cannot shadow constants
-  --> $DIR/issue-27033.rs:9:9
+  --> $DIR/issue-27033.rs:8:9
    |
 LL |     const C: u8 = 1;
    |     ---------------- the constant `C` is defined here

src/test/ui/no-send-res-ports.rs

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 use std::thread;
 use std::rc::Rc;
 

src/test/ui/no-send-res-ports.stderr

@@ -1,5 +1,5 @@
 error[E0277]: `std::rc::Rc<()>` cannot be sent between threads safely
-  --> $DIR/no-send-res-ports.rs:27:5
+  --> $DIR/no-send-res-ports.rs:26:5
    |
 LL |     thread::spawn(move|| {
    |     ^^^^^^^^^^^^^ `std::rc::Rc<()>` cannot be sent between threads safely
@@ -9,10 +9,10 @@ LL |     thread::spawn(move|| {
 LL |     F: FnOnce() -> T, F: Send + 'static, T: Send + 'static
    |                          ---- required by this bound in `std::thread::spawn`
    |
-   = help: within `[closure@$DIR/no-send-res-ports.rs:27:19: 31:6 x:main::Foo]`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<()>`
+   = help: within `[closure@$DIR/no-send-res-ports.rs:26:19: 30:6 x:main::Foo]`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<()>`
    = note: required because it appears within the type `Port<()>`
    = note: required because it appears within the type `main::Foo`
-   = note: required because it appears within the type `[closure@$DIR/no-send-res-ports.rs:27:19: 31:6 x:main::Foo]`
+   = note: required because it appears within the type `[closure@$DIR/no-send-res-ports.rs:26:19: 30:6 x:main::Foo]`
 
 error: aborting due to previous error
 

src/test/ui/rfc-1937-termination-trait/termination-trait-test-wrong-type.rs

@@ -1,6 +1,5 @@
 // compile-flags: --test
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 
 use std::num::ParseFloatError;
 

src/test/ui/rfc-1937-termination-trait/termination-trait-test-wrong-type.stderr

@@ -1,5 +1,5 @@
 error[E0277]: `main` has invalid return type `std::result::Result<f32, std::num::ParseFloatError>`
-  --> $DIR/termination-trait-test-wrong-type.rs:8:1
+  --> $DIR/termination-trait-test-wrong-type.rs:7:1
    |
 LL | / fn can_parse_zero_as_f32() -> Result<f32, ParseFloatError> {
 LL | |     "0".parse()

src/test/ui/traits/trait-suggest-where-clause.rs

@@ -1,5 +1,4 @@
-// ignore-x86
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ^ due to stderr output differences
 use std::mem;
 
 struct Misc<T:?Sized>(T);

src/test/ui/traits/trait-suggest-where-clause.stderr

@@ -1,5 +1,5 @@
 error[E0277]: the size for values of type `U` cannot be known at compilation time
-  --> $DIR/trait-suggest-where-clause.rs:9:20
+  --> $DIR/trait-suggest-where-clause.rs:8:20
    |
 LL | fn check<T: Iterator, U: ?Sized>() {
    |                       -- help: consider further restricting this bound: `U: std::marker::Sized +`
@@ -16,7 +16,7 @@ LL | pub const fn size_of<T>() -> usize {
    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
 
 error[E0277]: the size for values of type `U` cannot be known at compilation time
-  --> $DIR/trait-suggest-where-clause.rs:12:5
+  --> $DIR/trait-suggest-where-clause.rs:11:5
    |
 LL | fn check<T: Iterator, U: ?Sized>() {
    |                       -- help: consider further restricting this bound: `U: std::marker::Sized +`
@@ -34,7 +34,7 @@ LL | pub const fn size_of<T>() -> usize {
    = note: required because it appears within the type `Misc<U>`
 
 error[E0277]: the trait bound `u64: std::convert::From<T>` is not satisfied
-  --> $DIR/trait-suggest-where-clause.rs:17:5
+  --> $DIR/trait-suggest-where-clause.rs:16:5
    |
 LL |     <u64 as From<T>>::from;
    |     ^^^^^^^^^^^^^^^^^^^^^^ the trait `std::convert::From<T>` is not implemented for `u64`
@@ -42,7 +42,7 @@ LL |     <u64 as From<T>>::from;
    = note: required by `std::convert::From::from`
 
 error[E0277]: the trait bound `u64: std::convert::From<<T as std::iter::Iterator>::Item>` is not satisfied
-  --> $DIR/trait-suggest-where-clause.rs:20:5
+  --> $DIR/trait-suggest-where-clause.rs:19:5
    |
 LL |     <u64 as From<<T as Iterator>::Item>>::from;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::convert::From<<T as std::iter::Iterator>::Item>` is not implemented for `u64`
@@ -50,7 +50,7 @@ LL |     <u64 as From<<T as Iterator>::Item>>::from;
    = note: required by `std::convert::From::from`
 
 error[E0277]: the trait bound `Misc<_>: std::convert::From<T>` is not satisfied
-  --> $DIR/trait-suggest-where-clause.rs:25:5
+  --> $DIR/trait-suggest-where-clause.rs:24:5
    |
 LL |     <Misc<_> as From<T>>::from;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::convert::From<T>` is not implemented for `Misc<_>`
@@ -58,7 +58,7 @@ LL |     <Misc<_> as From<T>>::from;
    = note: required by `std::convert::From::from`
 
 error[E0277]: the size for values of type `[T]` cannot be known at compilation time
-  --> $DIR/trait-suggest-where-clause.rs:30:20
+  --> $DIR/trait-suggest-where-clause.rs:29:20
    |
 LL |     mem::size_of::<[T]>();
    |                    ^^^ doesn't have a size known at compile-time
@@ -72,7 +72,7 @@ LL | pub const fn size_of<T>() -> usize {
    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
 
 error[E0277]: the size for values of type `[&U]` cannot be known at compilation time
-  --> $DIR/trait-suggest-where-clause.rs:33:5
+  --> $DIR/trait-suggest-where-clause.rs:32:5
    |
 LL |     mem::size_of::<[&U]>();
    |     ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time

src/test/ui/type_length_limit.rs

@@ -1,5 +1,4 @@
-// ignore-musl
+// ignore-x86 FIXME: missing sysroot spans (#53081)
-// ignore-x86
 // error-pattern: reached the type-length limit while instantiating
 
 // Test that the type length limit can be changed.