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error[E0277]: `<impl Foo as Foo>::Bar` cannot be sent between threads safely
--> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:14:20
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LL | assert_is_send(&bar);
| ^^^^ `<impl Foo as Foo>::Bar` cannot be sent between threads safely
...
LL | fn assert_is_send<T: Send>(_: &T) {}
| ---- required by this bound in `assert_is_send`
|
= help: the trait `Send` is not implemented for `<impl Foo as Foo>::Bar`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
|
LL | async fn run<F: Foo>(_: &(), foo: F) -> std::io::Result<()> where <F as Foo>::Bar: Send {
| ^^^^^^^^ ^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^
error[E0277]: `<impl Foo as Foo>::Bar` cannot be sent between threads safely
--> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:24:20
|
LL | assert_is_send(&bar);
| ^^^^ `<impl Foo as Foo>::Bar` cannot be sent between threads safely
...
LL | fn assert_is_send<T: Send>(_: &T) {}
| ---- required by this bound in `assert_is_send`
|
= help: the trait `Send` is not implemented for `<impl Foo as Foo>::Bar`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
|
LL | async fn run2<F: Foo>(_: &(), foo: F) -> std::io::Result<()> where <F as Foo>::Bar: Send {
| ^^^^^^^^ ^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.
|
