rust/tests/ui/iterators/vec-on-unimplemented.rs

fn main() {
    vec![true, false].map(|v| !v).collect::<Vec<_>>();
    //~^ ERROR `Vec<bool>` is not an iterator
}
Suggest using `iter()` or `into_iter()` for `Vec` We cannot do that for `&Vec` because `#[rustc_on_unimplemented]` is limited (it does not clean generic instantiation for references, only for ADTs). 2022-06-08 11:09:08 +00:00			`fn main() {`
			`vec![true, false].map(\|v\| !v).collect::<Vec<_>>();`
			//~^ ERROR `Vec<bool>` is not an iterator
			`}`