these 2 derivations will be built:
  /nix/store/mzl1wk47m8f7z9bsy107v64z2vp6d50s-nix-grpc-store-0.2.2.drv
  /nix/store/p6xsqadnlwi6zyy3b4bxmd7n2pgpk99m-nix-grpc-store-dispatcher.drv