these 3 derivations will be built:
  /nix/store/hlh3a8fky6mkcsj8mgdxi45k1vjw48sj-droid.drv
  /nix/store/71ffg41zlyy4nwgg3lh3svak1b3z23cz-droid-1.5.0.drv
  /nix/store/b2l975dhxz2db0nyn3s606f7pc2lqkb4-check-droid.drv