error: the associated type `Yield` exists for `Container<[u8]>`, but its trait bounds were not satisfied
  --> $DIR/not-found-unsatisfied-bounds-0.rs:19:29
   |
LL | struct Container<T: ?Sized>(T);
   | --------------------------- associated item `Yield` not found for this struct
...
LL |     let _: Container<[u8]>::Yield = 1;
   |                             ^^^^^ associated type cannot be referenced on `Container<[u8]>` due to unsatisfied trait bounds
   |
   = note: the following trait bounds were not satisfied:
           `[u8]: Sized`

error: the associated type `Combination` exists for `Duple<String, Rc<str>>`, but its trait bounds were not satisfied
  --> $DIR/not-found-unsatisfied-bounds-0.rs:20:45
   |
LL | struct Duple<T, U>(T, U);
   | ------------------ associated item `Combination` not found for this struct
...
LL |     let _: Duple<String, std::rc::Rc<str>>::Combination;
   |                                             ^^^^^^^^^^^ associated type cannot be referenced on `Duple<String, Rc<str>>` due to unsatisfied trait bounds
   |
   = note: the following trait bounds were not satisfied:
           `Rc<str>: Send`
           `String: Copy`

error: aborting due to 2 previous errors