these 2 derivations will be built:
  /nix/store/sgirgwv55vwwgmfbccf9ar8zk6m1aa96-nixbot-docs.drv
  /nix/store/mmb6p9icfvghyxvykb9ld37qmyakmn30-inputDerivation-gh-pages.drv
building '/nix/store/sgirgwv55vwwgmfbccf9ar8zk6m1aa96-nixbot-docs.drv'...
building '/nix/store/mmb6p9icfvghyxvykb9ld37qmyakmn30-inputDerivation-gh-pages.drv'...