these 2 derivations will be built:
  /nix/store/nlh1ywg0vw0h18iydy0aiqcg8mfpqysn-nix-grpc-store-0.2.2.drv
  /nix/store/hkpdc5xx5ngr4lcz5gj284065n7ijymc-nix-grpc-store-dispatcher.drv