Build failed in Jenkins: precise-desktop-amd64_default #545

[Jenkins Notification]

See <http://10.189.74.2:8080/job/precise-desktop-amd64_default/545/>

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Started due to content change in http://cdimage.ubuntu.com/precise/daily-live/current/SHA256SUMS
[EnvInject] - Loading node environment variables.
Building remotely on wazn
[precise-desktop-amd64_default] $ /bin/bash /tmp/hudson799923272143886559.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:Required ISO version 'precise-desktop-amd64.iso' already in cache
[precise-desktop-amd64_default] $ /bin/bash /tmp/hudson1091230738967541891.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/545/artifact/tests',> 'variant': 'desktop', 'release': 'precise', 'debug': False, 'flavor': 'ubuntu', 'arch': 'amd64'}
DEBUG:root:Arguments: ['default']
INFO:root:Sleeping for 6 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-BfcpFU', '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-BfcpFU', 'casper/vmlinuz', 'casper/initrd.lz']' returned non-zero exit status 1
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 128, in apport_excepthook
    os.O_WRONLY|os.O_CREAT|os.O_EXCL, 0o640), 'w')
OSError: [Errno 2] No such file or directory: '/var/crash/_usr_share_ubuntu-iso-testing_python_run-test.py.110.crash'

Original exception was:
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-BfcpFU', '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.