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error[E0507]: cannot move out of `var`, a captured variable in an `FnMut` closure
--> $DIR/option-content-move2.rs:11:9
|
LL | let mut var = None;
| ------- ---- move occurs because `var` has type `Option<NotCopyable>`, which does not implement the `Copy` trait
| |
| captured outer variable
LL | func(|| {
| -- captured by this `FnMut` closure
LL | // Shouldn't suggest `move ||.as_ref()` here
LL | move || {
| ^^^^^^^ `var` is moved here
LL |
LL | var = Some(NotCopyable);
| --- variable moved due to use in closure
|
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/option-content-move2.rs:5:12
|
LL | fn func<F: FnMut() -> H, H: FnMut()>(_: F) {}
| ^^^^^^^^^^^^
note: if `NotCopyable` implemented `Clone`, you could clone the value
--> $DIR/option-content-move2.rs:1:1
|
LL | struct NotCopyable;
| ^^^^^^^^^^^^^^^^^^ consider implementing `Clone` for this type
...
LL | var = Some(NotCopyable);
| --- you could clone this value
error[E0507]: cannot move out of `var`, a captured variable in an `FnMut` closure
--> $DIR/option-content-move2.rs:21:9
|
LL | let mut var = None;
| ------- ---- move occurs because `var` has type `Option<NotCopyableButCloneable>`, which does not implement the `Copy` trait
| |
| captured outer variable
LL | func(|| {
| -- captured by this `FnMut` closure
LL | // Shouldn't suggest `move ||.as_ref()` nor to `clone()` here
LL | move || {
| ^^^^^^^ `var` is moved here
LL |
LL | var = Some(NotCopyableButCloneable);
| --- variable moved due to use in closure
|
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/option-content-move2.rs:5:12
|
LL | fn func<F: FnMut() -> H, H: FnMut()>(_: F) {}
| ^^^^^^^^^^^^
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0507`.
|
