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error[E0277]: the trait bound `(): InOut<_>` is not satisfied
--> $DIR/issue-25076.rs:10:20
|
LL | do_fold(bot(), ());
| ------- ^^ the trait `InOut<_>` is not implemented for `()`
| |
| required by a bound introduced by this call
|
help: this trait has no implementations, consider adding one
--> $DIR/issue-25076.rs:3:1
|
LL | trait InOut<T> { type Out; }
| ^^^^^^^^^^^^^^
note: required by a bound in `do_fold`
--> $DIR/issue-25076.rs:5:18
|
LL | fn do_fold<B, F: InOut<B, Out=B>>(init: B, f: F) {}
| ^^^^^^^^^^^^^^^ required by this bound in `do_fold`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.
|
