Build failed in Jenkins: quantal-upgrade-precise-server » amd64,non-lts,server,upgrade-test #182

[Jenkins Notification]

See <http://10.189.74.2:8080/job/quantal-upgrade-precise-server/./ARCH=amd64,LTS=non-lts,PROFILE=server,label=upgrade-test/182/>

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Started by upstream project "quantal-upgrade-precise-server" build number 182
[EnvInject] - Loading node environment variables.
Building remotely on wazn-upgrade
[upgrade-test] $ /bin/sh -x /tmp/hudson3364447363465174055.sh
+ rm -Rf auto-upgrade-testing
+ BRANCH=auto-upgrade-testing
+ distro-info -s
+ RELEASE=quantal
+ [ -d auto-upgrade-testing ]
+ bzr branch lp:auto-upgrade-testing
You have not informed bzr of your Launchpad ID, and you must do this to
write to Launchpad or access private data.  See "bzr help launchpad-login".
Branched 54 revision(s).
+ cd auto-upgrade-testing
+ LTSPREFIX=
+ ARCHEXT=
+ BASEDIR=/home/upgrade-tester/auto-upgrade-tester
+ [ non-lts = non-lts ]
+ LTSPREFIX=
+ ARCHEXT=amd64
+ PROFILENAME=quantal-server-amd64
+ echo Running profile quantal-server-amd64
Running profile quantal-server-amd64
+ python bin/auto-upgrade-tester /home/upgrade-tester/auto-upgrade-tester/profiles/quantal-server-amd64
ERROR:root:can not import 'UpgradeTestBackendQemu'
Traceback (most recent call last):
  File "bin/auto-upgrade-tester", line 72, in createBackend
    backend_modul = __import__(backend_full_name, globals(), fromlist="AutoUpgradeTester")
  File "./AutoUpgradeTester/UpgradeTestBackendQemu.py", line 28, in <module>
    from DistUpgrade.utils import is_port_already_listening
ImportError: cannot import name is_port_already_listening
Traceback (most recent call last):
  File "bin/auto-upgrade-tester", line 377, in <module>
    html_output)
  File "bin/auto-upgrade-tester", line 145, in testUpgrade
    assert(backend != None)
AssertionError
Testing '/home/upgrade-tester/auto-upgrade-tester/profiles/quantal-server-amd64'
ERROR: exception caught '' 
+ cp -ar /home/upgrade-tester/auto-upgrade-tester/result/quantal-server-amd64/ <http://10.189.74.2:8080/job/quantal-upgrade-precise-server/./ARCH=amd64,LTS=non-lts,PROFILE=server,label=upgrade-test/ws/results>
Archiving artifacts
Recording test results
Test reports were found but none of them are new. Did tests run? 
For example, <http://10.189.74.2:8080/job/quantal-upgrade-precise-server/./ARCH=amd64,LTS=non-lts,PROFILE=server,label=upgrade-test/182/artifact/results/results.xml> is 4 days 11 hr old

Build step 'Publish JUnit test result report' changed build result to FAILURE