| error[E0594]: cannot assign to `v.v`, which is behind a `&` reference | |
| --> $DIR/suggest-mut-method-for-loop-hashmap.rs:17:9 | |
| | | |
| LL | for (_k, mut v) in map.iter() { | |
| | ---------- | |
| | | | | |
| | | help: use mutable method: `iter_mut()` | |
| | this iterator yields `&` references | |
| ... | |
| LL | v.v += 1; | |
| | ^^^^^^^^ `v` is a `&` reference, so the data it refers to cannot be written | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0594`. |