these 2 derivations will be built:
  /nix/store/izp9php83sdc04arxcc2dl2gmh2amx43-nix-grpc-store-0.1.0-beta.1.drv
  /nix/store/fx1crsm5m61x5s9ajyic40r3fzhc1ljf-nix-grpc-store-dispatcher.drv