rust/src/test/ui/unboxed-closures/unboxed-closures-mutate-upvar.stderr

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error[E0595]: closure cannot assign to immutable local variable `n`
--> $DIR/unboxed-closures-mutate-upvar.rs:24:27
|
LL | let n = 0;
| - consider changing this to `mut n`
LL | let mut f = to_fn_mut(|| { //~ ERROR closure cannot assign
| ^^ cannot borrow mutably
error[E0594]: cannot assign to captured outer variable in an `FnMut` closure
--> $DIR/unboxed-closures-mutate-upvar.rs:42:9
|
LL | let n = 0;
| - help: consider making `n` mutable: `mut n`
...
LL | n += 1; //~ ERROR cannot assign
| ^^^^^^
error[E0594]: cannot assign to captured outer variable in an `Fn` closure
--> $DIR/unboxed-closures-mutate-upvar.rs:56:9
|
LL | n += 1; //~ ERROR cannot assign
| ^^^^^^
|
= note: `Fn` closures cannot capture their enclosing environment for modifications
help: consider changing this closure to take self by mutable reference
--> $DIR/unboxed-closures-mutate-upvar.rs:55:23
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LL | let mut f = to_fn(move || {
| _______________________^
LL | | n += 1; //~ ERROR cannot assign
LL | | });
| |_____^
error[E0594]: cannot assign to captured outer variable in an `Fn` closure
--> $DIR/unboxed-closures-mutate-upvar.rs:63:9
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LL | n += 1; //~ ERROR cannot assign
| ^^^^^^
|
= note: `Fn` closures cannot capture their enclosing environment for modifications
help: consider changing this closure to take self by mutable reference
--> $DIR/unboxed-closures-mutate-upvar.rs:62:23
|
LL | let mut f = to_fn(move || {
| _______________________^
LL | | n += 1; //~ ERROR cannot assign
LL | | });
| |_____^
error: aborting due to 4 previous errors
Some errors occurred: E0594, E0595.
For more information about an error, try `rustc --explain E0594`.