warning: could not read HEAD ref from repo at '/var/lib/nixbot/worktrees/effect-1238', using 'master'
this effect fails on purpose
Traceback (most recent call last):
  File "/nix/store/9rv4cdg81d7kswvlzjnzr4xvy56akq7p-nixbot-effects/bin/.nixbot-effects-wrapped", line 9, in <module>
    sys.exit(main())
             ~~~~^^
  File "/nix/store/9rv4cdg81d7kswvlzjnzr4xvy56akq7p-nixbot-effects/lib/python3.13/site-packages/nixbot_effects/cli.py", line 357, in main
    args.func(args)
    ~~~~~~~~~^^^^^^
  File "/nix/store/9rv4cdg81d7kswvlzjnzr4xvy56akq7p-nixbot-effects/lib/python3.13/site-packages/nixbot_effects/cli.py", line 150, in run_command
    _run_effect_derivation(drv_path, options)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "/nix/store/9rv4cdg81d7kswvlzjnzr4xvy56akq7p-nixbot-effects/lib/python3.13/site-packages/nixbot_effects/cli.py", line 106, in _run_effect_derivation
    run_effects(
    ~~~~~~~~~~~^
        drv_path,
        ^^^^^^^^^
    ...<5 lines>...
        extra_sandbox_paths=options.extra_sandbox_paths,
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/nix/store/9rv4cdg81d7kswvlzjnzr4xvy56akq7p-nixbot-effects/lib/python3.13/site-packages/nixbot_effects/__init__.py", line 536, in run_effects
    raise NixbotEffectsError(msg)
nixbot_effects.NixbotEffectsError: command failed with exit code 1