// 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. mod foo { pub mod foo { } } //~ NOTE previous definition of `foo` here use foo::foo; //~^ ERROR a module named `foo` has already been defined in this module //~| was already imported fn main() {}