Thank you for your bugreport - What are the contents of the rules files you are using when you get these results?
It looks like you run into 412042 (see #1), in combination with debugging info in your rules. #1: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=412042 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org