src/test/ui/wf/wf-enum-fields.stderr

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