// Copyright 2012 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. // ignore-tidy-linelength // compile-flags: -Zepoch=2015 -Zunstable-options // tests that epochs work with the tyvar warning-turned-error #[deny(warnings)] fn main() { let x = 0; let y = &x as *const _; let _ = y.is_null(); //~^ error: the type of this value must be known in this context [tyvar_behind_raw_pointer] //~^^ warning: this was previously accepted }