error[E0401]: can't reference `Self` constructor from outer item
  --> $DIR/self-ctor.rs:5:28
   |
LL | impl<T> S0<T> {
   | ------------- the inner item doesn't inherit generics from this impl, so `Self` is invalid to reference
LL |     fn foo() {
LL |         const C: S0<i32> = Self(0);
   |                            ^^^^ help: replace `Self` with the actual type: `S0`

error[E0401]: can't reference `Self` constructor from outer item
  --> $DIR/self-ctor.rs:8:13
   |
LL | impl<T> S0<T> {
   | ------------- the inner item doesn't inherit generics from this impl, so `Self` is invalid to reference
...
LL |             Self(0)
   |             ^^^^ help: replace `Self` with the actual type: `S0`

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0401`.