error[E0508]: cannot move out of type `[A]`, a non-copy slice
  --> $DIR/move-out-of-slice-1.rs:7:11
   |
LL |     match a {
   |           ^ cannot move out of here
LL |         box [a] => {},
   |              - data moved here
   |
note: move occurs because `a` has type `A`, which does not implement the `Copy` trait
  --> $DIR/move-out-of-slice-1.rs:8:14
   |
LL |         box [a] => {},
   |              ^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0508`.