these 2 derivations will be built:
  /nix/store/7v93a8bkhvw0nwmpgak17yqwh8z04p0k-openspecui-15.0.0.drv
  /nix/store/jafwh2xxhr3kcvshzlkb0vqx18lbjwkj-check-openspecui.drv