error[E0308]: mismatched types
  --> $DIR/dyn-incompatible-trait-in-return-position-impl-trait.rs:36:5
   |
LL | fn can() -> impl DynIncompatible {
   |             -------------------- expected `A` because of return type
...
LL |     B
   |     ^ expected `A`, found `B`

error[E0308]: mismatched types
  --> $DIR/dyn-incompatible-trait-in-return-position-impl-trait.rs:43:5
   |
LL | fn cat() -> impl DynCompatible {
   |             ------------------ expected `A` because of return type
...
LL |     B
   |     ^ expected `A`, found `B`

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0308`.