| error[E0631]: type mismatch in closure arguments |
| --> $DIR/issue-36053-2.rs:7:32 |
| | |
| LL | once::<&str>("str").fuse().filter(|a: &str| true).count(); |
| | ^^^^^^ --------- |
| | | | | |
| | | | help: consider borrowing the argument: `&&str` |
| | | found signature defined here |
| | expected due to this |
| | |
| = note: expected closure signature `for<'a> fn(&'a &str) -> _` |
| found closure signature `for<'a> fn(&'a str) -> _` |
| note: required by a bound in `filter` |
| --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL |
| |
| error[E0599]: the method `count` exists for struct `Filter<Fuse<Once<&str>>, [closure@issue-36053-2.rs:7:39]>`, but its trait bounds were not satisfied |
| --> $DIR/issue-36053-2.rs:7:55 |
| | |
| LL | once::<&str>("str").fuse().filter(|a: &str| true).count(); |
| | --------- ^^^^^ method cannot be called due to unsatisfied trait bounds |
| | | |
| | doesn't satisfy `<_ as FnOnce<(&&str,)>>::Output = bool` |
| | doesn't satisfy `_: FnMut<(&&str,)>` |
| --> $SRC_DIR/core/src/iter/adapters/filter.rs:LL:COL |
| | |
| = note: doesn't satisfy `_: Iterator` |
| | |
| = note: the following trait bounds were not satisfied: |
| `<[closure@$DIR/issue-36053-2.rs:7:39: 7:48] as FnOnce<(&&str,)>>::Output = bool` |
| which is required by `Filter<Fuse<std::iter::Once<&str>>, [closure@$DIR/issue-36053-2.rs:7:39: 7:48]>: Iterator` |
| `[closure@$DIR/issue-36053-2.rs:7:39: 7:48]: FnMut<(&&str,)>` |
| which is required by `Filter<Fuse<std::iter::Once<&str>>, [closure@$DIR/issue-36053-2.rs:7:39: 7:48]>: Iterator` |
| `Filter<Fuse<std::iter::Once<&str>>, [closure@$DIR/issue-36053-2.rs:7:39: 7:48]>: Iterator` |
| which is required by `&mut Filter<Fuse<std::iter::Once<&str>>, [closure@$DIR/issue-36053-2.rs:7:39: 7:48]>: Iterator` |
| |
| error: aborting due to 2 previous errors |
| |
| Some errors have detailed explanations: E0599, E0631. |
| For more information about an error, try `rustc --explain E0599`. |
