Build failed in Jenkins: raring-server-amd64_default #3

[Jenkins Notification]

See <http://10.189.74.2:8080/job/raring-server-amd64_default/3/>

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Started by user psivaa
[EnvInject] - Loading node environment variables.
Building remotely on alderamin
[raring-server-amd64_default] $ /bin/bash -x /tmp/hudson5160251644208975670.sh
+ cd /var/lib/ubuntu-iso-testing/isos/ubuntu-server/
+ sleep 100
+ zsync http://cdimage.ubuntu.com/ubuntu-server/daily/current/raring-server-amd64.iso.zsync
failed on url http://cdimage.ubuntu.com/ubuntu-server/daily/current/raring-server-amd64.iso.zsync
could not read control file from URL http://cdimage.ubuntu.com/ubuntu-server/daily/current/raring-server-amd64.iso.zsync
Build step 'Execute shell' marked build as failure
Archiving artifacts
Recording test results
[description-setter] Could not determine description.