Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 25 insertions, 0 deletions

diff --git a/src/test/ui/async-await/issue-71137.stderr b/src/test/ui/async-await/issue-71137.stderr
new file mode 100644
index 000000000..eade6aa2d
--- /dev/null
+++ b/src/test/ui/async-await/issue-71137.stderr
@@ -0,0 +1,25 @@
+error: future cannot be sent between threads safely
+  --> $DIR/issue-71137.rs:22:14
+   |
+LL |   fake_spawn(wrong_mutex());
+   |              ^^^^^^^^^^^^^ future returned by `wrong_mutex` is not `Send`
+   |
+   = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `MutexGuard<'_, i32>`
+note: future is not `Send` as this value is used across an await
+  --> $DIR/issue-71137.rs:14:25
+   |
+LL |     let mut guard = m.lock().unwrap();
+   |         --------- has type `MutexGuard<'_, i32>` which is not `Send`
+LL |     (async { "right"; }).await;
+   |                         ^^^^^^ await occurs here, with `mut guard` maybe used later
+LL |     *guard += 1;
+LL |   }
+   |   - `mut guard` is later dropped here
+note: required by a bound in `fake_spawn`
+  --> $DIR/issue-71137.rs:8:27
+   |
+LL | fn fake_spawn<F: Future + Send + 'static>(f: F) { }
+   |                           ^^^^ required by this bound in `fake_spawn`
+
+error: aborting due to previous error
+