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error: captured variable cannot escape `FnMut` closure body
--> $DIR/do-not-suggest-adding-move-when-closure-is-already-marked-as-move.rs:6:9
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LL | let mut vec: Vec<i32> = Vec::new();
| ------- variable defined here
LL | let closure = move || {
| - inferred to be a `FnMut` closure
LL | vec.clear();
| --- variable captured here
LL | let mut iter = vec.iter();
LL | move || { iter.next() }
| ^^^^^^^^^^^^^^^^^^^^^^^ returns a closure that contains a reference to a captured variable, which then escapes the closure body
|
= note: `FnMut` closures only have access to their captured variables while they are executing...
= note: ...therefore, they cannot allow references to captured variables to escape
error: aborting due to previous error
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