these 2 derivations will be built:
  /nix/store/k0djaqq5g82fszfhkj79ldsa4q88ybzi-nix-grpc-store-0.2.0.drv
  /nix/store/d0pxpz8ksvy4hi15x6h321ym2jn2fjnf-nix-grpc-store-dispatcher.drv