these 3 derivations will be built:
  /nix/store/7nwrfcilzw9wjjg8ad1mdca69nyqrkvk-droid.drv
  /nix/store/px7nzhlqy8frggvrfnh45h5ay8dz0az6-droid-0.228.1.drv
  /nix/store/sm3b9lfyk0a9jbnn3jpxmsvbrmb04fkw-check-droid.drv