| error[E0594]: cannot assign to `n`, as it is not declared as mutable |
| --> $DIR/unboxed-closures-mutate-upvar.rs:15:9 |
| | |
| LL | let n = 0; |
| | - help: consider changing this to be mutable: `mut n` |
| LL | let mut f = to_fn_mut(|| { |
| LL | n += 1; |
| | ^^^^^^ cannot assign |
| |
| error[E0594]: cannot assign to `n`, as it is not declared as mutable |
| --> $DIR/unboxed-closures-mutate-upvar.rs:32:9 |
| | |
| LL | let n = 0; |
| | - help: consider changing this to be mutable: `mut n` |
| ... |
| LL | n += 1; |
| | ^^^^^^ cannot assign |
| |
| error[E0594]: cannot assign to `n`, as it is not declared as mutable |
| --> $DIR/unboxed-closures-mutate-upvar.rs:46:9 |
| | |
| LL | let n = 0; |
| | - help: consider changing this to be mutable: `mut n` |
| LL | let mut f = to_fn(move || { |
| LL | n += 1; |
| | ^^^^^^ cannot assign |
| |
| error[E0594]: cannot assign to `n`, as it is a captured variable in a `Fn` closure |
| --> $DIR/unboxed-closures-mutate-upvar.rs:53:9 |
| | |
| LL | fn to_fn<A,F:Fn<A>>(f: F) -> F { f } |
| | - change this to accept `FnMut` instead of `Fn` |
| ... |
| LL | let mut f = to_fn(move || { |
| | _________________-----_- |
| | | | |
| | | expects `Fn` instead of `FnMut` |
| LL | | n += 1; |
| | | ^^^^^^ cannot assign |
| LL | | }); |
| | |_____- in this closure |
| |
| error: aborting due to 4 previous errors |
| |
| For more information about this error, try `rustc --explain E0594`. |