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warning: the feature `return_type_notation` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/basic.rs:8:12
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LL | #![feature(return_type_notation)]
| ^^^^^^^^^^^^^^^^^^^^
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= note: see issue #109417 <https://github.com/rust-lang/rust/issues/109417> for more information
= note: `#[warn(incomplete_features)]` on by default
error: future cannot be sent between threads safely
--> $DIR/basic.rs:26:13
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LL | is_send(foo::<T>());
| ^^^^^^^^^^ future returned by `foo` is not `Send`
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= help: within `impl Future<Output = Result<(), ()>>`, the trait `Send` is not implemented for `impl Future<Output = Result<(), ()>>`
note: future is not `Send` as it awaits another future which is not `Send`
--> $DIR/basic.rs:16:5
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LL | T::method().await?;
| ^^^^^^^^^^^ await occurs here on type `impl Future<Output = Result<(), ()>>`, which is not `Send`
note: required by a bound in `is_send`
--> $DIR/basic.rs:20:20
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LL | fn is_send(_: impl Send) {}
| ^^^^ required by this bound in `is_send`
error: aborting due to 1 previous error; 1 warning emitted
|
