Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/tests/ui/sync/mutexguard-sync.stderr b/tests/ui/sync/mutexguard-sync.stderr
new file mode 100644
index 000000000..4dc557119
--- /dev/null
+++ b/tests/ui/sync/mutexguard-sync.stderr
@@ -0,0 +1,20 @@
+error[E0277]: `Cell<i32>` cannot be shared between threads safely
+  --> $DIR/mutexguard-sync.rs:11:15
+   |
+LL |     test_sync(guard);
+   |     --------- ^^^^^ `Cell<i32>` cannot be shared between threads safely
+   |     |
+   |     required by a bound introduced by this call
+   |
+   = help: the trait `Sync` is not implemented for `Cell<i32>`
+   = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicI32` instead
+   = note: required for `MutexGuard<'_, Cell<i32>>` to implement `Sync`
+note: required by a bound in `test_sync`
+  --> $DIR/mutexguard-sync.rs:5:17
+   |
+LL | fn test_sync<T: Sync>(_t: T) {}
+   |                 ^^^^ required by this bound in `test_sync`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.