// 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. #![deny(unused_variables)] #![feature(core)] fn main() { for _ in range(1is, 101) { let x = (); //~ ERROR: unused variable: `x` match () { a => {} //~ ERROR: unused variable: `a` } } }