1 #[derive(Debug)]
2 struct R {
3   b: bool,
4 }
5 
6 impl Drop for R {
drop(&mut self)7     fn drop(&mut self) {}
8 }
9 
main()10 fn main() {
11     let i = Box::new(R { b: true });
12     let _j = i.clone(); //~ ERROR the method
13     println!("{:?}", i);
14 }
15