these 3 derivations will be built:
  /nix/store/m9f4064j78xgpnci0bglw7qsvpgbjixa-aven-0.1.51-vendor.drv
  /nix/store/zawrgcypjwq1iz20d27q3qz5x3p6f9kh-aven-0.1.51.drv
  /nix/store/7370hgyxf3ajw0h8hrsr6qdkl5hdff97-check-aven.drv