error[E0601]: `main` function not found in crate `issue_43784_supertrait`
   |
   = note: consider adding a `main` function to `$DIR/issue-43784-supertrait.rs`

error[E0277]: the trait bound `T: std::marker::Copy` is not satisfied
  --> $DIR/issue-43784-supertrait.rs:18:9
   |
LL | impl<T> Complete for T {} //~ ERROR the trait bound `T: std::marker::Copy` is not satisfied
   |         ^^^^^^^^ the trait `std::marker::Copy` is not implemented for `T`
   |
   = help: consider adding a `where T: std::marker::Copy` bound

error: aborting due to 2 previous errors

Some errors occurred: E0277, E0601.
For more information about an error, try `rustc --explain E0277`.