// Copyright 2016 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. // aux-build:derive-a.rs #![feature(rustc_attrs)] extern crate derive_a; //~^ WARN proc macro crates and `#[no_link]` crates have no effect without `#[macro_use]` #[rustc_error] fn main() {} //~ ERROR compilation successful