3 #![feature(return_position_impl_trait_in_trait)]
4 #![allow(incomplete_features)]
9 fn nya() -> impl Wf<Vec<[u8]>>;
10 //~^ ERROR the size for values of type `[u8]` cannot be known at compilation time
12 fn nya2() -> impl Wf<[u8]>;
13 //~^ ERROR the size for values of type `[u8]` cannot be known at compilation time