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error[E0308]: mismatched types
--> $DIR/suggest-missing-await-closure.rs:16:18
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LL | async fn make_u32() -> u32 {
| --- checked the `Output` of this `async fn`, found opaque type
...
LL | take_u32(x)
| ^ expected `u32`, found opaque type
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= note: while checking the return type of the `async fn`
= note: expected type `u32`
found opaque type `impl Future`
help: consider `await`ing on the `Future`
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LL | take_u32(x.await)
| ^^^^^^
error: aborting due to previous error
For more information about this error, try `rustc --explain E0308`.
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