these 2 derivations will be built:
  /nix/store/j429pyzv8jwnbiq4hgp4h488pjv5zsq1-nix-grpc-store-0.1.0.drv
  /nix/store/ndpqbvrcgmmjvrkz3hb8lnsy9hdysdqp-nix-grpc-store-dispatcher.drv