error[E0277]: the trait bound `S: ~const Foo` is not satisfied --> $DIR/super-traits-fail.rs:15:20 | LL | impl const Bar for S {} | ^ the trait `~const Foo` is not implemented for `S` | note: the trait `Foo` is implemented for `S`, but that implementation is not `const` --> $DIR/super-traits-fail.rs:15:20 | LL | impl const Bar for S {} | ^ note: required by a bound in `Bar` --> $DIR/super-traits-fail.rs:8:12 | LL | trait Bar: ~const Foo {} | ^^^^^^^^^^ required by this bound in `Bar` error: aborting due to previous error For more information about this error, try `rustc --explain E0277`.