warning: the feature `unsized_locals` is incomplete and may not be safe to use and/or cause compiler crashes --> $DIR/double-move.rs:1:12 | LL | #![feature(unsized_locals, unsized_fn_params)] | ^^^^^^^^^^^^^^ | = note: `#[warn(incomplete_features)]` on by default = note: see issue #48055 for more information error[E0382]: use of moved value: `y` --> $DIR/double-move.rs:21:22 | LL | let y = *x; | - move occurs because `y` has type `str`, which does not implement the `Copy` trait LL | drop_unsized(y); | - value moved here LL | drop_unsized(y); | ^ value used here after move error[E0382]: use of moved value: `x` --> $DIR/double-move.rs:27:22 | LL | let _y = *x; | -- value moved here LL | drop_unsized(x); | ^ value used here after move | = note: move occurs because `*x` has type `str`, which does not implement the `Copy` trait error[E0382]: use of moved value: `*x` --> $DIR/double-move.rs:33:18 | LL | let x = "hello".to_owned().into_boxed_str(); | - move occurs because `x` has type `Box`, which does not implement the `Copy` trait LL | drop_unsized(x); | - value moved here LL | let _y = *x; | ^^ value used here after move error[E0382]: use of moved value: `y` --> $DIR/double-move.rs:40:9 | LL | let y = *x; | - move occurs because `y` has type `str`, which does not implement the `Copy` trait LL | y.foo(); | ----- `y` moved due to this method call LL | y.foo(); | ^ value used here after move | note: this function takes ownership of the receiver `self`, which moves `y` --> $DIR/double-move.rs:5:12 | LL | fn foo(self) -> String; | ^^^^ error[E0382]: use of moved value: `x` --> $DIR/double-move.rs:46:9 | LL | let _y = *x; | -- value moved here LL | x.foo(); | ^ value used here after move | = note: move occurs because `*x` has type `str`, which does not implement the `Copy` trait error[E0382]: use of moved value: `*x` --> $DIR/double-move.rs:52:18 | LL | let x = "hello".to_owned().into_boxed_str(); | - move occurs because `x` has type `Box`, which does not implement the `Copy` trait LL | x.foo(); | - value moved here LL | let _y = *x; | ^^ value used here after move error: aborting due to 6 previous errors; 1 warning emitted For more information about this error, try `rustc --explain E0382`.