src/test/ui/coherence/coherence-with-generator.stderr

   1 error: cannot implement trait on type alias impl trait
   2   --> $DIR/coherence-with-generator.rs:14:24
   3    |
   4 LL | impl Trait for Wrapper<OpaqueGenerator> {}
   5    |                        ^^^^^^^^^^^^^^^
   6    |
   7 note: type alias impl trait defined here
   8   --> $DIR/coherence-with-generator.rs:3:24
   9    |
  10 LL | type OpaqueGenerator = impl Sized;
  11    |                        ^^^^^^^^^^
  12
  13 error[E0119]: conflicting implementations of trait `Trait` for type `Wrapper<OpaqueGenerator>`
  14   --> $DIR/coherence-with-generator.rs:16:1
  15    |
  16 LL | impl Trait for Wrapper<OpaqueGenerator> {}
  17    | --------------------------------------- first implementation here
  18 LL |
  19 LL | impl<T: Sync> Trait for Wrapper<T> {}
  20    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Wrapper<OpaqueGenerator>`
  21
  22 error: aborting due to 2 previous errors
  23
  24 For more information about this error, try `rustc --explain E0119`.