these 3 derivations will be built:
  /nix/store/hfdnnsxb57zp6yg6gnij8xmql75qzrgr-droid.drv
  /nix/store/ic9g3x6fng4hhk2cijim4wl5w0a4gxrf-droid-1.3.0.drv
  /nix/store/fggn7hm9jpdh1annp3h5cpwvy73w2hcy-check-droid.drv