I installed and activated latest debug objects on a completely fresh and virgin WP 3.8. I am logged in as a user with admin privileges, but the menu entry "debug objects" does not appear. Tried the same thing on 3.7.1 and it appears as expected. Tried the path /wp-admin/tools.php?page=debug-objects/inc/autoload/class-settings.php on 3.8 and get a message telling my "Du hast nicht die erforderlichen Rechte, um auf diese Seite zuzugreifen", so it seems a privileges problem.
Does anyone have a fix for that ?