I’m not sure this still works. I had a plugin pointing to the compromised github URL and the error message during rebuild just said it failed to pull the repository, with some further detail about a gem version or something. (Can’t paste the exact info as it’s too far back in my scrollback from all the other noise during subsequent builds.)
Looks like the URL/repository doesn’t exist at all now, which is good (at least until someone else re-creates it) but the error message would’ve saved a lot of time.