these 2 derivations will be built:
  /nix/store/qicy52kvs8b4azgis4zcpf77ii49q9i4-nix-grpc-store-0.2.0.drv
  /nix/store/sbljml48xpx4nhcbwy9mfyi3vax3aakn-nix-grpc-store-dispatcher.drv