// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // ignore-tidy-linelength #![feature(optin_builtin_traits)] use std::marker::MarkerTrait; trait MyTrait: MarkerTrait {} impl MyTrait for .. {} impl MyTrait for .. {} //~^ ERROR conflicting implementations for trait `MyTrait` fn main() {}