rust/tests/ui/async-await/issue-64130-1-sync.drop_tracking_mir.stderr
2023-08-09 14:04:10 +00:00

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error: future cannot be shared between threads safely
--> $DIR/issue-64130-1-sync.rs:25:13
|
LL | is_sync(bar());
| ^^^^^ future returned by `bar` is not `Sync`
|
= help: within `impl Future<Output = ()>`, the trait `Sync` is not implemented for `Foo`
= note: consider using `std::sync::Arc<Foo>`; for more information visit <https://doc.rust-lang.org/book/ch16-03-shared-state.html>
note: future is not `Sync` as this value is used across an await
--> $DIR/issue-64130-1-sync.rs:18:11
|
LL | let x = Foo;
| - has type `Foo` which is not `Sync`
LL | baz().await;
| ^^^^^ await occurs here, with `x` maybe used later
note: required by a bound in `is_sync`
--> $DIR/issue-64130-1-sync.rs:14:15
|
LL | fn is_sync<T: Sync>(t: T) { }
| ^^^^ required by this bound in `is_sync`
error: aborting due to previous error