| error[E0277]: `impl Future<Output = ()>` cannot be sent between threads safely |
| --> $DIR/send-on-async-fn-in-trait.rs:13:16 |
| | |
| LL | needs_send(T::test()); |
| | ---------- ^^^^^^^^^ `impl Future<Output = ()>` cannot be sent between threads safely |
| | | |
| | required by a bound introduced by this call |
| | |
| = help: the trait `Send` is not implemented for `impl Future<Output = ()>` |
| note: required by a bound in `needs_send` |
| --> $DIR/send-on-async-fn-in-trait.rs:12:27 |
| | |
| LL | fn needs_send(_: impl Send) {} |
| | ^^^^ required by this bound in `needs_send` |
| help: `Send` can be made part of the associated future's guarantees for all implementations of `Foo::test` |
| | |
| LL - async fn test() -> () {} |
| LL + fn test() -> impl std::future::Future<Output = ()> + Send { async {} } |
| | |
| |
| error[E0277]: `impl Future<Output = i32>` cannot be sent between threads safely |
| --> $DIR/send-on-async-fn-in-trait.rs:15:16 |
| | |
| LL | needs_send(T::test2()); |
| | ---------- ^^^^^^^^^^ `impl Future<Output = i32>` cannot be sent between threads safely |
| | | |
| | required by a bound introduced by this call |
| | |
| = help: the trait `Send` is not implemented for `impl Future<Output = i32>` |
| note: required by a bound in `needs_send` |
| --> $DIR/send-on-async-fn-in-trait.rs:12:27 |
| | |
| LL | fn needs_send(_: impl Send) {} |
| | ^^^^ required by this bound in `needs_send` |
| help: `Send` can be made part of the associated future's guarantees for all implementations of `Foo::test2` |
| | |
| LL - async fn test2() -> i32 { 1 + 2 } |
| LL + fn test2() -> impl std::future::Future<Output = i32> + Send {async { 1 + 2 } } |
| | |
| |
| error: aborting due to 2 previous errors |
| |
| For more information about this error, try `rustc --explain E0277`. |
