these 2 derivations will be built:
  /nix/store/mkk315vyh3qy2gqhf3x6hl0xjp0j6nx8-nix-grpc-store-0.2.3.drv
  /nix/store/5jzbybil5p4rlr103dml9giqpvwxd953-nix-grpc-store-dispatcher.drv