these 2 derivations will be built:
  /nix/store/wsihfhnkxrd1225ywp8bqbc8kji9faj3-nix-grpc-store-0.2.2.drv
  /nix/store/gprs8gn31a6y41rzwx6z6dcwc8ms1b6h-nix-grpc-store-dispatcher.drv