these 2 derivations will be built:
  /nix/store/19lmhal0gc5grx1sppw0ja8vvaa9w8q3-nix-grpc-store-0.1.0.drv
  /nix/store/bmd7krkja5lgslm47ank0kzv18w1xw9s-nix-grpc-store-dispatcher.drv