these 2 derivations will be built:
  /nix/store/33k7sg4ngl1kys0w3xwigad7dhqrzly6-nix-grpc-store-0.2.2.drv
  /nix/store/pqxad0zy8z4k427ayhm5859l30f2br29-nix-grpc-store-dispatcher.drv