error[E0038]: the trait `Bar` cannot be made into an object
  --> $DIR/object-safety-mentions-Self.rs:24:5
   |
LL |     fn bar(&self, x: &Self);
   |        --- method `bar` references the `Self` type in its parameters or return type
...
LL |     t
   |     ^ the trait `Bar` cannot be made into an object
   |
   = note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Bar>` for `&T`
   = note: required by cast to type `&dyn Bar`

error[E0038]: the trait `Baz` cannot be made into an object
  --> $DIR/object-safety-mentions-Self.rs:30:5
   |
LL |     fn baz(&self) -> Self;
   |        --- method `baz` references the `Self` type in its parameters or return type
...
LL |     t
   |     ^ the trait `Baz` cannot be made into an object
   |
   = note: required because of the requirements on the impl of `std::ops::CoerceUnsized<&dyn Baz>` for `&T`
   = note: required by cast to type `&dyn Baz`

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0038`.