these 3 derivations will be built:
  /nix/store/45c535c5q315acjlbllwys8cllqjbf5q-droid.drv
  /nix/store/2n2pm0qmg0h3hs7a8vzz0i1p8vy6vva8-droid-1.4.1.drv
  /nix/store/mcgn3qd33akfygf0znxwn25s7bkakn95-check-droid.drv