these 3 derivations will be built:
  /nix/store/wjn7byzsl9xf4vpd35v495bfwglzmk3y-ctx-2.2.5-vendor.drv
  /nix/store/yrln9xabc4vv19q9rxjclgw5bvwwdzz5-ctx-2.2.5.drv
  /nix/store/v0c3b4wb0p2qjw353gm3q72lv08cgm9j-check-ctx.drv