mirror of
https://github.com/rust-lang/rust
synced 2024-09-06 01:11:17 +00:00
065454dd1d
```
error[E0507]: cannot move out of `val`, a captured variable in an `FnMut` closure
--> $DIR/issue-87456-point-to-closure.rs:10:28
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LL | let val = String::new();
| --- captured outer variable
LL |
LL | take_mut(|| {
| -- captured by this `FnMut` closure
LL |
LL | let _foo: String = val;
| ^^^ move occurs because `val` has type `String`, which does not implement the `Copy` trait
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help: consider borrowing here
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LL | let _foo: String = &val;
| +
help: consider cloning the value if the performance cost is acceptable
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LL | let _foo: String = val.clone();
| ++++++++
```
13 lines
198 B
Rust
13 lines
198 B
Rust
//@ run-rustfix
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fn main() {
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let x: Option<Box<_>> = Some(Box::new(1));
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match x {
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Some(ref y) => {
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let _b = y.clone(); //~ ERROR cannot move out
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}
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_ => {}
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}
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}
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