these 2 derivations will be built:
  /nix/store/j4smbdv2j0r9ljyzcz4a7sw6ypq59lfh-nix-grpc-store-0.1.0.drv
  /nix/store/ckwqnl1rbhzwn2rgsmaccb08911bpypw-nix-grpc-store-dispatcher.drv