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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:5:12
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LL | #![feature(return_type_notation, async_fn_in_trait)]
| ^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #109417 <https://github.com/rust-lang/rust/issues/109417> for more information
= note: `#[warn(incomplete_features)]` on by default
warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/basic.rs:5:34
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LL | #![feature(return_type_notation, async_fn_in_trait)]
| ^^^^^^^^^^^^^^^^^
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= note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
error: future cannot be sent between threads safely
--> $DIR/basic.rs:24:13
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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:14:5
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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:18:20
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LL | fn is_send(_: impl Send) {}
| ^^^^ required by this bound in `is_send`
error: aborting due to previous error; 2 warnings emitted
|
