rust/tests/ui/traits/non_lifetime_binders/late-bound-in-anon-ct.rs

#![feature(non_lifetime_binders, generic_const_exprs)]
//~^ WARN the feature `non_lifetime_binders` is incomplete
//~| WARN the feature `generic_const_exprs` is incomplete

fn foo() -> usize
where
    for<T> [i32; { let _: T = todo!(); 0 }]:,
    //~^ ERROR cannot capture late-bound type parameter in constant
{ 42 }

fn main() {}