error[E0594]: cannot assign to `t.v`, which is behind a `&` reference | |
--> $DIR/suggest-mut-method-for-loop.rs:14:9 | |
| | |
LL | for mut t in buzz.values() { | |
| ------------- | |
| | | | |
| | help: use mutable method: `values_mut()` | |
| this iterator yields `&` references | |
... | |
LL | t.v += 1; | |
| ^^^^^^^^ `t` 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`. |