error[E0277]: the trait bound `for<'de> EmptyBis<'de>: Foo<'_>` is not satisfied
  --> $DIR/issue-96223.rs:49:17
   |
LL |     icey_bounds(&p);
   |     ----------- ^^ the trait `for<'de> Foo<'_>` is not implemented for `EmptyBis<'de>`, which is required by `Empty: Dummy<EmptyMarker>`
   |     |
   |     required by a bound introduced by this call
   |
   = help: the trait `Foo<'de>` is implemented for `Baz<T>`
note: required for `Baz<EmptyBis<'de>>` to implement `for<'de> Foo<'de>`
  --> $DIR/issue-96223.rs:16:14
   |
LL | impl<'de, T> Foo<'de> for Baz<T> where T: Foo<'de> {}
   |              ^^^^^^^^     ^^^^^^          -------- unsatisfied trait bound introduced here
note: required for `Empty` to implement `Dummy<EmptyMarker>`
  --> $DIR/issue-96223.rs:20:9
   |
LL | impl<M> Dummy<M> for Empty
   |         ^^^^^^^^     ^^^^^
...
LL |     for<'de> Baz<<M::Bar as Bar<'de>>::Inner>: Foo<'de>,
   |                                                -------- unsatisfied trait bound introduced here
note: required by a bound in `icey_bounds`
  --> $DIR/issue-96223.rs:45:19
   |
LL | fn icey_bounds<D: Dummy<EmptyMarker>>(p: &D) {}
   |                   ^^^^^^^^^^^^^^^^^^ required by this bound in `icey_bounds`

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.