// Copyright 2014 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.

#![feature(unboxed_closures)]

// Test that an unboxed closure that mutates a free variable will
// cause borrow conflicts.

fn main() {
    let mut x = 0u;
    let f = |:| x += 1;
    let _y = x; //~ ERROR cannot use `x` because it was mutably borrowed
}