error[E0277]: the trait bound `T: Copy` is not satisfied
  --> $DIR/issue-43784-associated-type.rs:14:18
   |
LL |     type Assoc = T;
   |                  ^ the trait `Copy` is not implemented for `T`
   |
note: required by a bound in `Complete::Assoc`
  --> $DIR/issue-43784-associated-type.rs:5:17
   |
LL |     type Assoc: Partial<Self>;
   |                 ^^^^^^^^^^^^^ required by this bound in `Complete::Assoc`
help: consider restricting type parameter `T`
   |
LL | impl<T: std::marker::Copy> Complete for T {
   |       +++++++++++++++++++

error: aborting due to previous error

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