| error[E0106]: missing lifetime specifier | |
| --> $DIR/impl-trait-missing-lifetime.rs:1:31 | |
| | | |
| LL | fn f(_: impl Iterator<Item = &'_ ()>) {} | |
| | ^^ expected named lifetime parameter | |
| | | |
| help: consider introducing a named lifetime parameter | |
| | | |
| LL | fn f<'a>(_: impl Iterator<Item = &'a ()>) {} | |
| | ^^^^ ^^ | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0106`. |