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error[E0631]: type mismatch in function arguments
--> $DIR/issue-88382.rs:26:40
|
LL | do_something(SomeImplementation(), test);
| ------------ ^^^^ expected due to this
| |
| required by a bound introduced by this call
...
LL | fn test<'a, I: Iterable>(_: &mut I::Iterator<'a>) {}
| ------------------------------------------------- found signature defined here
|
= note: expected function signature `for<'a> fn(&'a mut std::iter::Empty<usize>) -> _`
found function signature `for<'a, 'b> fn(&'b mut <_ as Iterable>::Iterator<'a>) -> _`
note: required by a bound in `do_something`
--> $DIR/issue-88382.rs:20:48
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LL | fn do_something<I: Iterable>(i: I, mut f: impl for<'a> Fn(&mut I::Iterator<'a>)) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `do_something`
help: consider wrapping the function in a closure
|
LL | do_something(SomeImplementation(), |arg0: &mut std::iter::Empty<usize>| test(/* &mut <_ as Iterable>::Iterator<'_> */));
| ++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0631`.
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