these 3 derivations will be built:
  /nix/store/cjmga6rxmq8qmjp37pp7f4dr61y2a4h3-ctx-2.2.5-vendor.drv
  /nix/store/gsgisihvm453ypc0bpfvyl1k4hbz1ln5-ctx-2.2.5.drv
  /nix/store/9646vzglnhn4cnvwgs8853m8wrl37hvx-check-ctx.drv