src/test/ui/wf/wf-trait-superbound.stderr

   1 error[E0277]: the trait bound `T: Copy` is not satisfied
   2   --> $DIR/wf-trait-superbound.rs:9:21
   3    |
   4 LL | trait ExtraCopy<T:Copy> { }
   5    |                   ---- required by this bound in `ExtraCopy`
   6 LL |
   7 LL | trait SomeTrait<T>: ExtraCopy<T> {
   8    |                     ^^^^^^^^^^^^ the trait `Copy` is not implemented for `T`
   9    |
  10 help: consider restricting type parameter `T`
  11    |
  12 LL | trait SomeTrait<T: Copy>: ExtraCopy<T> {
  13    |                  ^^^^^^
  14
  15 error: aborting due to previous error
  16
  17 For more information about this error, try `rustc --explain E0277`.