these 2 derivations will be built:
  /nix/store/pavjry23ch8f69hyq6dl88jy8ndyk2ga-nix-grpc-store-0.2.3.drv
  /nix/store/bjx50cxxxby2a7ahb6b2axw65fzqyyhv-nix-grpc-store-dispatcher.drv