error[E0277]: the trait bound `T: Copy` is not satisfied
  --> $DIR/issue-43784-supertrait.rs:8:9
   |
LL | pub trait Complete: Partial {
   |                     ------- required by this bound in `Complete`
...
LL | impl<T> Complete for T {}
   |         ^^^^^^^^ the trait `Copy` is not implemented for `T`
   |
help: consider restricting type parameter `T`
   |
LL | impl<T: Copy> Complete for T {}
   |       ^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.