mirror of https://github.com/rust-lang/rust
23 lines
968 B
Plaintext
23 lines
968 B
Plaintext
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>`, which is required by `impl Future<Output = ()>: Send`
|
|
note: future is not `Send` as this value is used across an await
|
|
--> $DIR/issue-71137.rs:14:26
|
|
|
|
|
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
|
|
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 1 previous error
|
|
|