| error[E0502]: cannot borrow `f` as immutable because it is also borrowed as mutable |
| --> $DIR/borrowck-unboxed-closures.rs:3:5 |
| | |
| LL | let g = &mut f; |
| | ------ mutable borrow occurs here |
| LL | f(1, 2); |
| | ^ immutable borrow occurs here |
| LL | use_mut(g); |
| | - mutable borrow later used here |
| |
| error[E0596]: cannot borrow `f` as mutable, as it is not declared as mutable |
| --> $DIR/borrowck-unboxed-closures.rs:7:5 |
| | |
| LL | fn b<F:FnMut(isize, isize) -> isize>(f: F) { |
| | - help: consider changing this to be mutable: `mut f` |
| LL | f(1, 2); |
| | ^ cannot borrow as mutable |
| |
| error[E0382]: use of moved value: `f` |
| --> $DIR/borrowck-unboxed-closures.rs:12:5 |
| | |
| LL | fn c<F:FnOnce(isize, isize) -> isize>(f: F) { |
| | - - move occurs because `f` has type `F`, which does not implement the `Copy` trait |
| | | |
| | consider adding a `Copy` constraint to this type argument |
| LL | f(1, 2); |
| | - value moved here |
| LL | f(1, 2); |
| | ^ value used here after move |
| |
| error: aborting due to 3 previous errors |
| |
| Some errors have detailed explanations: E0382, E0502, E0596. |
| For more information about an error, try `rustc --explain E0382`. |