--> $DIR/unboxed-closures-infer-fnmut-missing-mut.rs:7:5
|
LL | let tick = || counter += 1;
- | ---- help: consider changing this to be mutable: `mut tick`
+ | ---- ------- calling `tick` requires mutable binding due to mutable borrow of `counter`
+ | |
+ | help: consider changing this to be mutable: `mut tick`
LL | tick();
| ^^^^ cannot borrow as mutable