error: ~const can only be applied to `#[const_trait]` traits --> $DIR/super-traits-fail-3.rs:12:12 | LL | trait Bar: ~const Foo {} | ^^^^^^^^^^ error: ~const can only be applied to `#[const_trait]` traits --> $DIR/super-traits-fail-3.rs:15:17 | LL | const fn foo(x: &T) { | ^^^^^^^^^^ error: aborting due to 2 previous errors