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rust/src/test/ui/closure-immutable-outer-variable.nll.stderr
2018-07-20 20:01:15 +01:00

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error[E0594]: cannot assign to `y`, as it is not declared as mutable
--> $DIR/closure-immutable-outer-variable.rs:21:26
|
LL | let y = true;
| - help: consider changing this to be mutable: `mut y`
LL | foo(Box::new(move || y = false) as Box<_>); //~ ERROR cannot assign to captured outer variable
| ^^^^^^^^^ cannot assign
error: aborting due to previous error
For more information about this error, try `rustc --explain E0594`.