Build failed in Jenkins: precise-desktop-amd64_default #542

[Jenkins Notification]

See <http://10.189.74.2:8080/job/precise-desktop-amd64_default/542/>

------------------------------------------
Started due to content change in http://cdimage.ubuntu.com/precise/daily-live/current/SHA256SUMS
[EnvInject] - Loading node environment variables.
Building remotely on alderamin
[precise-desktop-amd64_default] $ /bin/bash /tmp/hudson2675465831574099021.sh
ln: failed to create symbolic link `/var/lib/ubuntu-server-iso-testing/isos/ubuntu-desktop/ubuntu': File exists
INFO:root:Checking/Downloading current build for variant desktop from http://cdimage.ubuntu.com/precise/daily-live
INFO:root:Remote file not available. Retrying in 15 minutes
INFO:root:Downloading ISO...

-------------------- 0.0%
#------------------- 6.3% 97.3 kBps 0:14 ETA  
#########----------- 48.5% 648.2 kBps 0:01 ETA  
#################### 100.0% 298.2 kBps DONE    

reading seed file ubuntu/precise-desktop-amd64.iso: *******************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
Read ubuntu/precise-desktop-amd64.iso. Target 99.8% complete.      
downloading from http://cdimage.ubuntu.com//precise/daily-live/current/precise-desktop-amd64.iso:

###################- 99.8%
###################- 99.8% 126.9 kBps 0:11 ETA  
###################- 99.9% 553.4 kBps 0:01 ETA  
#################### 100.0% 272.1 kBps DONE    

verifying download...checksum matches OK
used 785989632 local, fetched 1495687
Syncing precise ubuntu desktop amd64
Verifying ubuntu/precise-desktop-amd64.iso
Verification succeeded
[precise-desktop-amd64_default] $ /bin/bash /tmp/hudson6428262818387576464.sh
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 6 revisions.
DEBUG:root:Options: {'isoroot': '/var/lib/ubuntu-iso-testing/isos', 'isoname': False, 'test_dir': '<http://10.189.74.2:8080/job/precise-desktop-amd64_default/542/artifact/tests',> 'variant': 'desktop', 'release': 'precise', 'debug': False, 'flavor': 'ubuntu', 'arch': 'amd64'}
DEBUG:root:Arguments: ['default']
INFO:root:Sleeping for 11 seconds (LP: #961217)
INFO:root:Preseed: default
INFO:root:Extracting kernel and initrd from /var/lib/ubuntu-iso-testing/isos/ubuntu/precise-desktop-amd64.iso
DEBUG:root:Cmd: ['unbsdtar-safelink', '-xf', '/var/lib/ubuntu-iso-testing/isos/ubuntu/precise-desktop-amd64.iso', '-C', '/tmp/precise-desktop-amd64.iso-FJmzPF', 'casper/vmlinuz', 'casper/initrd.lz']
bsdtar: casper/vmlinuz: Not found in archive
bsdtar: Error exit delayed from previous errors.
Traceback (most recent call last):
  File "/usr/bin/run-test", line 266, in <module>
    subprocess.check_call(cmd)
  File "/usr/lib/python2.7/subprocess.py", line 511, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['unbsdtar-safelink', '-xf', '/var/lib/ubuntu-iso-testing/isos/ubuntu/precise-desktop-amd64.iso', '-C', '/tmp/precise-desktop-amd64.iso-FJmzPF', 'casper/vmlinuz', 'casper/initrd.lz']' returned non-zero exit status 1
Archiving artifacts
Recording test results
No test report files were found. Configuration error?
Build step 'Publish JUnit test result report' changed build result to FAILURE
[description-setter] Could not determine description.