rust/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail.rs

//~ ERROR the trait bound
//@ compile-flags: -Znext-solver

#![allow(incomplete_features)]
#![feature(const_trait_impl, effects)]

#[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 {}
// FIXME(effects) bad span

fn main() {}