these 2 derivations will be built:
  /nix/store/0q3sbq95n8fp58w74wd2nf2r43w7pyjp-skills-src-with-lock.drv
  /nix/store/90cqq6c91p1lv12whjcjd8hi7m0lgdv7-skills-1.5.21.drv
warning: unable to download 'https://cache.numtide.com/796qvqzsyh3g7fgydichazs9id5bjb4p.narinfo': HTTP error 429; retrying in 63410 ms (attempt 1/5)