these 4 derivations will be built:
  /nix/store/40ayj7qa8a0fapqfvalf274yl6gkn5f7-pi-agent-environment-smoke-driver.py.drv
  /nix/store/x3jhb836wpgs4b54knzi30kdd456yl4w-pi-agent-environment-smoke-settings.json.drv
  /nix/store/xfnp52irsg1hsk173jf9xmpjij57cn86-pi-agent-environment-smoke-models.json.drv
  /nix/store/zdjblq9yjwyd0k78lajr8qbj80adrgly-pi-agent-environment-smoke.drv