1 #![feature(unboxed_closures)]
5 fn to_fn_mut<A,F:FnMut<A>>(f: F) -> F { f }
7 fn call_it<F:FnMut(isize,isize)->isize>(y: isize, mut f: F) -> isize {
8 //~^ NOTE required by this bound in `call_it`
13 let f = to_fn_mut(|x: usize, y: isize| -> isize { (x as isize) + y });
14 //~^ NOTE found signature of `fn(usize, isize) -> _`
15 let z = call_it(3, f);
16 //~^ ERROR type mismatch
17 //~| NOTE expected signature of `fn(isize, isize) -> _`