// 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. extern crate debug; struct r { b: bool, } impl Drop for r { fn drop(&mut self) {} } fn main() { let i = box r { b: true }; let _j = i.clone(); //~ ERROR not implemented println!("{:?}", i); }