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, 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 1 previous error | |
For more information about this error, try `rustc --explain E0594`. |