these 2 derivations will be built:
  /nix/store/bn7akfrxqmkp7cyj82gxnjz63lf6hpg7-nix-grpc-store-0.2.2.drv
  /nix/store/vml7x8xm2j9qmnc68abq3gn8xqyly894-nix-grpc-store-dispatcher.drv