these 2 derivations will be built:
  /nix/store/qs8lfndmg7wi269rxchkn0iiravq5x1y-nix-grpc-store-0.1.0.drv
  /nix/store/fgvzg3d8yqkg5l3fs5vad69ikk5jb9gv-nix-grpc-store-dispatcher.drv