these 3 derivations will be built:
  /nix/store/5jqkfd29zxwqzly0v3bwawgymd0c5ixh-skills-src-with-lock.drv
  /nix/store/9fjrmyzjqg46jqw2xkpygjapszhc0wqq-skills-1.7.1.drv
  /nix/store/26rpaix0sb92cyrwmywpkjx966nwrvwg-check-skills.drv