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23 lines
834 B
Plaintext
23 lines
834 B
Plaintext
error[E0525]: expected a closure that implements the `Fn` trait, but this closure only implements `FnMut`
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--> $DIR/issue-34349.rs:16:17
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LL | let diary = || {
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| ^^ this closure implements `FnMut`, not `Fn`
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LL | farewell.push_str("!!!");
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| -------- closure is `FnMut` because it mutates the variable `farewell` here
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...
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LL | apply(diary);
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| ----- ----- the requirement to implement `Fn` derives from here
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| |
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| required by a bound introduced by this call
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note: required by a bound in `apply`
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--> $DIR/issue-34349.rs:11:32
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LL | fn apply<F>(f: F) where F: Fn() {
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| ^^^^ required by this bound in `apply`
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0525`.
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