these 2 derivations will be built:
  /nix/store/8a1gf66kqkawjgnfy15df0cf0v3wxgml-nixbot-flake-update.drv
  /nix/store/2vhyd1snn8ym7f169nyqjmp9jdiza9vf-inputDerivation-flake-update.drv
building '/nix/store/2vhyd1snn8ym7f169nyqjmp9jdiza9vf-inputDerivation-flake-update.drv'...