error[E0277]: the trait bound `RawImpl<_>: Raw<_>` is not satisfied
  --> $DIR/issue-62742.rs:4:5
   |
LL |     WrongImpl::foo(0i32);
   |     ^^^^^^^^^ the trait `Raw<_>` is not implemented for `RawImpl<_>`
   |
   = help: the trait `Raw<[T]>` is implemented for `RawImpl<T>`
note: required by a bound in `SafeImpl`
  --> $DIR/issue-62742.rs:26:35
   |
LL | pub struct SafeImpl<T: ?Sized, A: Raw<T>>(PhantomData<(A, T)>);
   |                                   ^^^^^^ required by this bound in `SafeImpl`

error[E0599]: the function or associated item `foo` exists for struct `SafeImpl<(), RawImpl<()>>`, but its trait bounds were not satisfied
  --> $DIR/issue-62742.rs:6:22
   |
LL |     WrongImpl::<()>::foo(0i32);
   |                      ^^^ function or associated item cannot be called on `SafeImpl<(), RawImpl<()>>` due to unsatisfied trait bounds
...
LL | pub struct RawImpl<T>(PhantomData<T>);
   | --------------------- doesn't satisfy `RawImpl<()>: Raw<()>`
...
LL | pub struct SafeImpl<T: ?Sized, A: Raw<T>>(PhantomData<(A, T)>);
   | ----------------------------------------- function or associated item `foo` not found for this struct
   |
note: trait bound `RawImpl<()>: Raw<()>` was not satisfied
  --> $DIR/issue-62742.rs:28:20
   |
LL | impl<T: ?Sized, A: Raw<T>> SafeImpl<T, A> {
   |                    ^^^^^^  --------------
   |                    |
   |                    unsatisfied trait bound introduced here
note: the trait `Raw` must be implemented
  --> $DIR/issue-62742.rs:12:1
   |
LL | pub trait Raw<T: ?Sized> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^

error[E0277]: the trait bound `RawImpl<()>: Raw<()>` is not satisfied
  --> $DIR/issue-62742.rs:6:5
   |
LL |     WrongImpl::<()>::foo(0i32);
   |     ^^^^^^^^^^^^^^^ the trait `Raw<()>` is not implemented for `RawImpl<()>`
   |
   = help: the trait `Raw<[T]>` is implemented for `RawImpl<T>`
note: required by a bound in `SafeImpl`
  --> $DIR/issue-62742.rs:26:35
   |
LL | pub struct SafeImpl<T: ?Sized, A: Raw<T>>(PhantomData<(A, T)>);
   |                                   ^^^^^^ required by this bound in `SafeImpl`

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0277, E0599.
For more information about an error, try `rustc --explain E0277`.