these 3 derivations will be built:
  /nix/store/z4npzgp4vigyvh8ds839kw0gxqjpr94y-skills-src-with-lock.drv
  /nix/store/31n1a3i5mg2dczyyr8fy2wm3m6j8fl0f-skills-1.7.2.drv
  /nix/store/ib2jjwn0wgxs9yndhia15kr41r0ava1j-check-skills.drv