Build failed in Jenkins: raring-server-amd64_default #2

[Jenkins Notification]

See <http://10.189.74.2:8080/job/raring-server-amd64_default/2/>

------------------------------------------
Started by user psivaa
[EnvInject] - Loading node environment variables.
Building remotely on alderamin
[raring-server-amd64_default] $ /bin/bash /tmp/hudson4354267502070022719.sh
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.