these 2 derivations will be built:
  /nix/store/d44am3s5iqjk94yrqmg3g7n2d1b61rfq-nix-grpc-store-0.1.0.drv
  /nix/store/30yih45xd4q7d62iqm9ksw5rxyq2dpvl-nix-grpc-store-dispatcher.drv