// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #![feature(unboxed_closures)] fn main() { let mut_ = |&mut: x| x; mut_.call((0, )); //~ ERROR does not implement any method in scope named `call` }