rust/src/test/compile-fail/cfg-attr-crate-2.rs

// Copyright 2015 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.
//
// compile-flags: --cfg broken

// https://github.com/rust-lang/rust/issues/21833#issuecomment-72353044

#![cfg_attr(broken, no_core)] //~ ERROR no_core is experimental

fn main() { }