these 3 derivations will be built:
  /nix/store/f9pf89jwwyynby5nhpbx1qmzf296lcxg-pythoncheck.sh.drv
  /nix/store/s9b9kxyzd0489xyc40cfmr33cy45gx8a-pythoncheck.sh.drv
  /nix/store/481j8amx2rzwm78vmdw2jq7p0hz0p5cs-skills-lint.drv