rust/tests/ui/traits/const-traits/super-traits-fail.rs

//@ compile-flags: -Znext-solver

#![feature(const_trait_impl)]

#[const_trait]
trait Foo {
    fn a(&self);
}
#[const_trait]
trait Bar: [const] Foo {}

struct S;
impl Foo for S {
    fn a(&self) {}
}

impl const Bar for S {}
//~^ ERROR the trait bound

fn main() {}