tests/ui/error-codes/E0771.rs

#![feature(adt_const_params, unsized_const_params)]
//~^ WARN the feature `unsized_const_params` is incomplete

fn function_with_str<'a, const STRING: &'a str>() {} //~ ERROR E0770

fn main() {
    function_with_str::<"Hello, world!">()
}