#![allow(unused_variables)]
fn main() {
    use std::rc::Rc;
    struct Foo;
    impl Drop for Foo {
        fn drop(&mut self) {
            println!("dropped!");
        }
    }
    let foo = Rc::new(Foo);
    let foo2 = Rc::clone(&foo);
    drop(foo);
    drop(foo2);
}