trpl-zh-cn/listings/ch13-functional-features/listing-13-08/output.txt

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$ cargo run
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Compiling rectangles v0.1.0 (file:///projects/rectangles)
error[E0507]: cannot move out of `value`, a captured variable in an `FnMut` closure
--> src/main.rs:18:30
|
15 | let value = String::from("closure called");
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| ----- captured outer variable
16 |
17 | list.sort_by_key(|r| {
| --- captured by this `FnMut` closure
18 | sort_operations.push(value);
| ^^^^^ move occurs because `value` has type `String`, which does not implement the `Copy` trait
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|
help: consider cloning the value if the performance cost is acceptable
|
18 | sort_operations.push(value.clone());
| ++++++++
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For more information about this error, try `rustc --explain E0507`.
error: could not compile `rectangles` (bin "rectangles") due to 1 previous error