error[E0508]: cannot move out of type `[u8]`, a non-copy slice --> $DIR/unsized-exprs2.rs:22:5 | LL | udrop::<[u8]>(foo()[..]); | ^^^^^^^^^^^^^^^^^^^^^^^^ | | | cannot move out of here | move occurs because value has type `[u8]`, which does not implement the `Copy` trait error: aborting due to previous error For more information about this error, try `rustc --explain E0508`.