rustc/tests/ui/lexer/lex-bad-str-literal-as-char-3.rs

//@ revisions: rust2015 rust2018 rust2021
//@[rust2018] edition:2018
//@[rust2021] edition:2021
fn main() {
    println!('hello world');
    //~^ ERROR unterminated character literal
    //[rust2021]~| ERROR prefix `world` is unknown
}