mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 18:53:39 +00:00
25 lines
897 B
Plaintext
25 lines
897 B
Plaintext
error: future cannot be sent between threads safely
|
|
--> $DIR/issue-64130-non-send-future-diags.rs:23:13
|
|
|
|
|
LL | is_send(foo());
|
|
| ^^^^^ future returned by `foo` is not `Send`
|
|
|
|
|
= help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `MutexGuard<'_, u32>`
|
|
note: future is not `Send` as this value is used across an await
|
|
--> $DIR/issue-64130-non-send-future-diags.rs:17:11
|
|
|
|
|
LL | let g = x.lock().unwrap();
|
|
| - has type `MutexGuard<'_, u32>` which is not `Send`
|
|
LL | baz().await;
|
|
| ^^^^^ await occurs here, with `g` maybe used later
|
|
LL | }
|
|
| - `g` is later dropped here
|
|
note: required by a bound in `is_send`
|
|
--> $DIR/issue-64130-non-send-future-diags.rs:9:15
|
|
|
|
|
LL | fn is_send<T: Send>(t: T) { }
|
|
| ^^^^ required by this bound in `is_send`
|
|
|
|
error: aborting due to previous error
|
|
|