these 2 derivations will be built:
  /nix/store/s7g668kwj6ljkmlsxgiyxck81k2k5isv-nix-grpc-store-0.1.0.drv
  /nix/store/zaqxvdlzih9qlirgrrkx0p2giddiyp2x-nix-grpc-store-dispatcher.drv