warning: could not read HEAD ref from repo at '/var/lib/nixbot/worktrees/effect-323', using 'master' warning: could not read HEAD ref from repo at '/var/lib/nixbot/worktrees/effect-323', using 'master' building '/nix/store/ay7880c297c98x4wl9f2mvdljjwic1xh-effect-update-readme-env.drv'... Cloning into 'repo'... Switched to a new branch 'update/readme' branch 'update/readme' set up to track 'origin/main'. No changes to /build/repo/README.md README package docs already up to date