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// revisions: ast mir
//[mir]compile-flags: -Z borrowck=mir
fn main() {
let x = 0;
(move || {
x = 1;
//[mir]~^ ERROR cannot assign to `x`, as it is not declared as mutable [E0594]
//[ast]~^^ ERROR cannot assign to captured outer variable in an `FnMut` closure [E0594]
})()
}
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