rust/tests/ui/async-await/in-trait/missing-send-bound.stderr
Nilstrieb 41e8d152dc Show number in error message even for one error
Co-authored-by: Adrian <adrian.iosdev@gmail.com>
2023-11-24 19:15:52 +01:00

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error: future cannot be sent between threads safely
--> $DIR/missing-send-bound.rs:13:20
|
LL | assert_is_send(test::<T>());
| ^^^^^^^^^^^ future returned by `test` is not `Send`
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= help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `impl Future<Output = ()>`
note: future is not `Send` as it awaits another future which is not `Send`
--> $DIR/missing-send-bound.rs:9:5
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LL | T::bar().await;
| ^^^^^^^^ await occurs here on type `impl Future<Output = ()>`, which is not `Send`
note: required by a bound in `assert_is_send`
--> $DIR/missing-send-bound.rs:17:27
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LL | fn assert_is_send(_: impl Send) {}
| ^^^^ required by this bound in `assert_is_send`
help: `Send` can be made part of the associated future's guarantees for all implementations of `Foo::bar`
|
LL - async fn bar();
LL + fn bar() -> impl std::future::Future<Output = ()> + Send;
|
error: aborting due to 1 previous error