I cannot confirm this bug. I guess you have build a kernel on your own which does not use the directory /lib/modules/3.12.0-rc1-00342-g6b12184.
I will close this bug, if I do not get more information. -- regards Thomas -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org