Clippy website has css 404s and styling errors in all versions except master

[eric-seppanen]

Description

The clippy lints website seems to be a bit broken in that all versions except for the "master" page are unable to load some of their css files, resulting in weird styling and a lot of missing colors.

Compare:
https://rust-lang.github.io/rust-clippy/master/index.html

https://rust-lang.github.io/rust-clippy/stable/index.html

Looking at browser network logs when loading the stable page, I am getting 404 errors on a lot of files, including:

https://rust-lang.github.io/mdBook/css/variables.css
https://rust-lang.github.io/mdBook/highlight.css
https://rust-lang.github.io/mdBook/tomorrow-night.css
https://rust-lang.github.io/mdBook/ayu-highlight.css

[lapla-cogito]

The most naive solution would probably be to make changes directly to the gh-pages branch.

[dswij]

Fixed by #14497

[eric-seppanen]

This appears to be broken again, in the same way.

EDIT: sorry, it's only broken for: stable, 1.86.0

EDIT 2: seems to have been fixed.