// 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.
trait Foo {
    fn foo<'a>(x: &mut Vec<&u8>, y: &u8);
}
impl Foo for () {
    fn foo(x: &mut Vec<&u8>, y: &u8) {
        x.push(y); //~ ERROR lifetime mismatch
    }
}
fn main() {}