error[E0204]: the trait `Copy` may not be implemented for this type
  --> $DIR/missing-bound-in-manual-copy-impl.rs:6:18
   |
LL | struct Wrapper<T>(T);
   |                   - this field does not implement `Copy`
LL |
LL | impl<S> Copy for Wrapper<S> {}
   |                  ^^^^^^^^^^
   |
help: consider restricting type parameter `S`
   |
LL | impl<S: Copy> Copy for Wrapper<S> {}
   |       ++++++

error: aborting due to previous error

For more information about this error, try `rustc --explain E0204`.