| error: implementation of `Stream` is not general enough | |
| --> $DIR/issue-30786.rs:108:22 | |
| | | |
| LL | let map = source.map(|x: &_| x); | |
| | ^^^ | |
| | | |
| = note: `Stream` would have to be implemented for the type `&'0 mut Map<Repeat, [closure@$DIR/issue-30786.rs:108:26: 108:35]>`, for any lifetime `'0` | |
| = note: but `Stream` is actually implemented for the type `&'1 mut Map<Repeat, [closure@$DIR/issue-30786.rs:108:26: 108:35]>`, for some specific lifetime `'1` | |
| error: aborting due to previous error | |