these 2 derivations will be built:
  /nix/store/sgzp6zy8hr5fvqhwpg1hsb6kz63kd5ia-nix-grpc-store-0.2.3.drv
  /nix/store/a8yi3z8qnn86rbaf17ryrn4rr9v7ybwd-nix-grpc-store-dispatcher.drv