struct X { x: (), }

impl X : Drop {
    fn finalize() {
        error!("destructor runs");
    }
}

struct Y { y: Option<X> }

fn main() {
    let x = Y { y: Some(X { x: () }) };
    match x.y {
        Some(move _z) => { }, //~ ERROR cannot bind by-move when matching an lvalue
        None => fail
    }
}