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error[E0507]: cannot move out of `x.0`, as `x` is a captured variable in an `Fn` closure
--> $DIR/issue-52663-span-decl-captured-variable.rs:8:26
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LL | let x = (vec![22], vec![44]);
| - -------------------- move occurs because `x.0` has type `Vec<i32>`, which does not implement the `Copy` trait
| |
| captured outer variable
LL | expect_fn(|| drop(x.0));
| -- ^^^ `x.0` is moved here
| |
| captured by this `Fn` closure
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help: `Fn` and `FnMut` closures require captured values to be able to be consumed multiple times, but `FnOnce` closures may consume them only once
--> $DIR/issue-52663-span-decl-captured-variable.rs:1:33
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LL | fn expect_fn<F>(f: F) where F : Fn() {
| ^^^^
help: consider cloning the value if the performance cost is acceptable
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LL | expect_fn(|| drop(x.0.clone()));
| ++++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0507`.
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