these 3 derivations will be built:
  /nix/store/mv3yxysy43y00am1m94qnc7fnp416x5g-droid.drv
  /nix/store/rrky7m4xgndlb0d8h14gjdha1bzsayb9-droid-0.224.0.drv
  /nix/store/dg55xra1jy4baiq2i2adx48a9aqg6650-check-droid.drv