warning: can't reference `Self` constructor from outer item
  --> $DIR/self-ctor-nongeneric.rs:8:23
   |
LL | impl S0 {
   | ------- the inner item doesn't inherit generics from this impl, so `Self` is invalid to reference
LL |     fn foo() {
LL |         const C: S0 = Self(0);
   |                       ^^^^ help: replace `Self` with the actual type: `S0`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #124186 <https://github.com/rust-lang/rust/issues/124186>
   = note: `#[warn(self_constructor_from_outer_item)]` (part of `#[warn(future_incompatible)]`) on by default

warning: can't reference `Self` constructor from outer item
  --> $DIR/self-ctor-nongeneric.rs:12:13
   |
LL | impl S0 {
   | ------- 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`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #124186 <https://github.com/rust-lang/rust/issues/124186>

warning: 2 warnings emitted