these 2 derivations will be built:
  /nix/store/jw30hq7yaxbp7ly1rfzmg75jjmpdk9yh-nix-grpc-store-0.2.3.drv
  /nix/store/2fv0007qa8kcvi28wyfk7c7mzxgp145h-nix-grpc-store-dispatcher.drv