update-manager crashed with SystemExit in exit(): 0

[Nick Jenkins]

I have update-manager set to run automatically on login. Works fine up until now, but today got this error appeared after logging in.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: update-manager 1:0.194
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Fri Oct 25 11:48:49 2013
ExecutablePath: /usr/bin/update-manager
ExecutableTimestamp: 1380833059
InterpreterPath: /usr/bin/python3.3
MarkForUpload: True
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager
ProcCwd: /home/nickj
ProcEnviron:
 LANGUAGE=en_AU:en
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with SystemExit in exit(): 0
UpgradeStatus: Upgraded to saucy on 2013-10-22 (2 days ago)
UserGroups: adm admin audio cdrom davfs2 dialout dip disk floppy fuse lpadmin mail mythtv plugdev powerdev sambashare sudo vboxusers video

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1024590, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.