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error[E0308]: mismatched types
--> $DIR/issue-78722-2.rs:17:20
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LL | type F = impl core::future::Future<Output = u8>;
| -------------------------------------- the expected future
...
LL | let f: F = async { 1 };
| - ^^^^^^^^^^^ expected future, found `async` block
| |
| expected due to this
|
= note: expected opaque type `F`
found `async` block `{async block@$DIR/issue-78722-2.rs:17:20: 17:25}`
error[E0271]: expected `{async block@$DIR/issue-78722-2.rs:14:13: 14:18}` to be a future that resolves to `u8`, but it resolves to `()`
--> $DIR/issue-78722-2.rs:12:30
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LL | fn concrete_use() -> F {
| ^ expected `u8`, found `()`
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0271, E0308.
For more information about an error, try `rustc --explain E0271`.
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