fn main() { let p = comm::port::(); let ch = comm::chan(p); let x = ~1; let x_in_parent = ptr::addr_of(*x) as uint; let y = ~2; let y_in_parent = ptr::addr_of(*y) as uint; task::spawn(fn~[copy ch, y; move x]() { let x_in_child = ptr::addr_of(*x) as uint; comm::send(ch, x_in_child); let y_in_child = ptr::addr_of(*y) as uint; comm::send(ch, y_in_child); }); let x_in_child = comm::recv(p); assert x_in_parent == x_in_child; let y_in_child = comm::recv(p); assert y_in_parent != y_in_child; }