these 2 derivations will be built:
  /nix/store/05df5j35x75m2aryn18lrww0mkwdqwhd-nix-grpc-store-0.1.0.drv
  /nix/store/vlmm3z13dgx78dw6nrkqdm635wsyypzv-nix-grpc-store-dispatcher.drv