The documentation for [`std::convert::Into`](https://doc.rust-lang.org/std/convert/trait.Into.html) contains some types from the `syntax` crate that should not be there: ```rust impl Into<Option<P<PathParameters>>> for AngleBracketedParameterData impl Into<Vec<Annotatable>> for Annotatable impl<T> Into<Vec<T>> for ThinVec<T> impl<T> Into<Vec<T>> for P<[T]> ``` all of those are dead links (eg. for [`syntax::ptr::P`](https://doc.rust-lang.org/nightly/syntax/ptr/struct.P.html)).