rust/src/test/compile-fail/issue-37665.rs

// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// compile-flags: -Z unpretty=mir
// ignore-cloudabi no std::path

use std::path::MAIN_SEPARATOR;

fn main() {
    let mut foo : String = "hello".to_string();
    foo.push(MAIN_SEPARATOR);
    println!("{}", foo);
    let x: () = 0; //~ ERROR: mismatched types
}