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error[E0271]: type mismatch resolving `<Result<Result<(), Result<Result<(), Result<Result<(), Option<{integer}>>, ...>>, ...>>, ...> as Future>::Error == Foo`
--> $DIR/E0271.rs:18:5
|
LL | / Box::new(
LL | | Ok::<_, ()>(
LL | | Err::<(), _>(
LL | | Ok::<_, ()>(
... |
LL | | )
LL | | )
| |_____^ type mismatch resolving `<Result<Result<(), Result<Result<(), ...>, ...>>, ...> as Future>::Error == Foo`
|
note: expected this to be `Foo`
--> $DIR/E0271.rs:8:18
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LL | type Error = E;
| ^
= note: required for the cast from `Box<Result<Result<(), Result<Result<(), Result<Result<(), Option<{integer}>>, ()>>, ()>>, ()>>` to `Box<(dyn Future<Error = Foo> + 'static)>`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0271`.
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