Build failed in Jenkins: precise-server-amd64_dns-server #25

[Jenkins Notification]

See <http://10.189.74.2:8080/job/precise-server-amd64_dns-server/25/>

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Started due to content change in http://cdimages.ubuntu.com/ubuntu-server/daily/current/SHA256SUMS
Building remotely on alderamin
[precise-server-amd64_dns-server] $ /bin/bash /tmp/hudson450823502065616417.sh
INFO:root:Checking/Downloading current build for variant server from http://cdimage.ubuntu.com/ubuntu-server/daily
INFO:root:Remote file not available. Retrying in 15 minutes
INFO:root:Downloading ISO...

-------------------- 0.0%
#------------------- 7.9% 110.6 kBps 0:11 ETA  
#############------- 65.4% 798.7 kBps 0:00 ETA  
#################### 100.0% 363.7 kBps DONE    

reading seed file ubuntu-server/precise-server-amd64.iso: ****************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
Read ubuntu-server/precise-server-amd64.iso. Target 94.8% complete.      
downloading from http://cdimage.ubuntu.com//ubuntu-server/daily/current/precise-server-amd64.iso:

##################-- 94.8%
##################-- 94.8% 8.4 kBps 151:26 ETA  
##################-- 94.8% 211.2 kBps 2:52 ETA  
##################-- 95.0% 1099.3 kBps 0:32 ETA  
###################- 95.5% 3320.0 kBps 0:09 ETA  
###################- 96.9% 10037.8 kBps 0:02 ETA  
###################- 99.7% 20597.6 kBps 0:00 ETA  
#################### 100.0% 5426.8 kBps DONE    

link: Operation not permitted
Unable to back up old file ubuntu-server/precise-server-amd64.iso - completed download left in ubuntu-server/precise-server-amd64.iso.part
verifying download...checksum matches OK
used 675250176 local, fetched 37061169
Syncing precise ubuntu-server server amd64
Traceback (most recent call last):
  File "/usr/bin/dl-ubuntu-test-iso", line 628, in <module>
    main()
  File "/usr/bin/dl-ubuntu-test-iso", line 625, in main
    iso_download(wanted, config)
  File "/usr/bin/dl-ubuntu-test-iso", line 433, in iso_download
    if not (config.use_zsync and do_zsync(config, destination, uri, isoname)):
  File "/usr/bin/dl-ubuntu-test-iso", line 338, in do_zsync
    return _do_zsync(config, zsync_local, zsync_uri, zsync_iso)
  File "/usr/bin/dl-ubuntu-test-iso", line 313, in _do_zsync
    os.chmod(target, stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IROTH)
OSError: [Errno 1] Operation not permitted: 'ubuntu-server/precise-server-amd64.iso'
ERROR:root:Command '['dl-ubuntu-test-iso', '--variant=server', '--arch=amd64', '--release=precise', '--build=current', '--isoroot=/var/lib/ubuntu-iso-testing/isos', '-P', '--flavor=ubuntu-server']' returned non-zero exit status 1
ERROR:root:Failed to download ISO. Aborting!
Archiving artifacts
Recording test results