diff options
Diffstat (limited to 'src/test/ui/lint/must_not_suspend/mutex.stderr')
-rw-r--r-- | src/test/ui/lint/must_not_suspend/mutex.stderr | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/ui/lint/must_not_suspend/mutex.stderr b/src/test/ui/lint/must_not_suspend/mutex.stderr new file mode 100644 index 000000000..a968b7ca0 --- /dev/null +++ b/src/test/ui/lint/must_not_suspend/mutex.stderr @@ -0,0 +1,26 @@ +error: `MutexGuard` held across a suspend point, but should not be + --> $DIR/mutex.rs:8:9 + | +LL | let _guard = m.lock().unwrap(); + | ^^^^^^ +LL | other().await; + | ------ the value is held across this suspend point + | +note: the lint level is defined here + --> $DIR/mutex.rs:3:9 + | +LL | #![deny(must_not_suspend)] + | ^^^^^^^^^^^^^^^^ +note: holding a MutexGuard across suspend points can cause deadlocks, delays, and cause Futures to not implement `Send` + --> $DIR/mutex.rs:8:9 + | +LL | let _guard = m.lock().unwrap(); + | ^^^^^^ +help: consider using a block (`{ ... }`) to shrink the value's scope, ending before the suspend point + --> $DIR/mutex.rs:8:9 + | +LL | let _guard = m.lock().unwrap(); + | ^^^^^^ + +error: aborting due to previous error + |