mirror of https://github.com/rust-lang/rust
15 lines
511 B
Plaintext
15 lines
511 B
Plaintext
error[E0594]: cannot assign to `x`, as it is a captured variable in a `Fn` closure
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--> $DIR/borrow-immutable-upvar-mutation-impl-trait.rs:11:9
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LL | fn bar() -> impl Fn() -> usize {
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| --- ------------------ change this to return `FnMut` instead of `Fn`
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LL | let mut x = 0;
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LL | move || {
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| ------- in this closure
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LL | x += 1;
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| ^^^^^^ cannot assign
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0594`.
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