src/test/ui/type-alias-impl-trait/generic_nondefining_use.rs

#![feature(type_alias_impl_trait)]

fn main() {}

type Cmp<T> = impl 'static;
//~^ ERROR could not find defining uses
//~^^ ERROR: at least one trait must be specified


// not a defining use, because it doesn't define *all* possible generics
fn cmp() -> Cmp<u32> { //~ ERROR defining opaque type use does not fully define
    5u32
}