these 3 derivations will be built:
  /nix/store/991mz22d7klb9filgziz7adgkp7126h4-droid.drv
  /nix/store/zvwgsy74qiy513yx5mhrhfqywfbhjlbg-droid-1.8.0.drv
  /nix/store/qx0fjfwqnc73fi4qjglar4f7rksg829w-check-droid.drv