TL;DR Travis build was failing. Found a possible fix, but I didn’t want to push commits just to check if it would work. Ran travis-build in a Docker container to test the fix. I accidentally pushed a change to kilonull that added the word “test” in the site’s title tag. I pushed another commit to remove the extra text and pulled on my server. About 5 minutes later I received an email telling me my build on Travis had failed.