warning: could not read HEAD ref from repo at '/var/lib/nixbot/worktrees/effect-1192', using 'master'
Running phase: initPhase
@nix { "action": "setPhase", "phase": "initPhase" }
Running phase: userSetupPhase
@nix { "action": "setPhase", "phase": "userSetupPhase" }
Running phase: effectPhase
@nix { "action": "setPhase", "phase": "effectPhase" }
{branch:main,rev:3faeacea64653258468d62da5bcc8714b1f20813,tag:null}
Hello, world!