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15 lines
640 B
Plaintext
15 lines
640 B
Plaintext
error[E0658]: `async` trait bounds are unstable
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--> $DIR/trait-bounds-in-macro.rs:8:28
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LL | async fn foo() -> impl async Fn() { }
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| ^^^^^
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= note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
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= help: add `#![feature(async_trait_bounds)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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= help: use the desugared name of the async trait, such as `AsyncFn`
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0658`.
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