I believe the problem here is related to LLVM using a CI model, where all changes eventually go to a single tree and tests are run on that single tree. Hosting

I believe the problem here is related to LLVM using a CI model, where all changes eventually go to a single tree and tests are run on that single tree. Hosting that CI happen on another site than github wouldn't really change anything. Maybe change the limit, but all such CI hosts have a limit, for the same reason that all the search engines have a size limit for web pages they scrape.