}
fn main() {
- iterator(); //~ ERROR unused implementer of `std::iter::Iterator` that must be used
- future(); //~ ERROR unused implementer of `std::future::Future` that must be used
- square_fn_once(); //~ ERROR unused implementer of `std::ops::FnOnce` that must be used
- square_fn_mut(); //~ ERROR unused implementer of `std::ops::FnMut` that must be used
- square_fn(); //~ ERROR unused implementer of `std::ops::Fn` that must be used
+ iterator(); //~ ERROR unused implementer of `Iterator` that must be used
+ future(); //~ ERROR unused implementer of `Future` that must be used
+ square_fn_once(); //~ ERROR unused implementer of `FnOnce` that must be used
+ square_fn_mut(); //~ ERROR unused implementer of `FnMut` that must be used
+ square_fn(); //~ ERROR unused implementer of `Fn` that must be used
}