Merge #10795

10795: Remove unwrap in doc path resolution r=Veykril a=udoprog

I keep hitting this constantly in my project, and I haven't dug very deep into the root cause. But seeing as the project otherwise compiles it appears to be something unsupported is being incorrectly parsed in rust-analyzer which for other cases is handled by returning `None`.

Co-authored-by: John-John Tedro <udoprog@tedro.se>