these 2 derivations will be built:
  /nix/store/6bis6l5v3ljaba29nv75xy3j26qy0fcb-nix-grpc-store-0.2.2.drv
  /nix/store/898mckw2inb9dy9pdgmsxdygp2g3ijjl-nix-grpc-store-dispatcher.drv