these 2 derivations will be built:
  /nix/store/66367i4aw59193yj39xy3scz0cv1f5md-nix-grpc-store-0.2.2.drv
  /nix/store/i3c4ki4xffd647fabn9fk2qh6n6qq2jm-nix-grpc-store-dispatcher.drv