-// 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 <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.
-
-// aux-build:attr_proc_macro.rs
-// ignore-tidy-linelength
-
-#![feature(custom_attribute)]
-//~^ ERROR Cannot use `#![feature(use_extern_macros)]` and `#![feature(custom_attribute)] at the same time
-
-extern crate attr_proc_macro;
-use attr_proc_macro::attr_proc_macro;
-
-#[attr_proc_macro]
-fn foo() {}
-
-fn main() {
- foo();
-}