Build failed in Jenkins: precise-alternate-amd64_default #1248

[Jenkins Notification]

See <http://d-jenkins.ubuntu-ci:8080/job/precise-alternate-amd64_default/1248/>

------------------------------------------
Started due to content change in http://cdimage.ubuntu.com/precise/daily/current/SHA256SUMS
Building remotely on alderamin in workspace <http://d-jenkins.ubuntu-ci:8080/job/precise-alternate-amd64_default/ws/>
[precise-alternate-amd64_default] $ /bin/bash /tmp/hudson8014224085655322709.sh
ln: failed to create symbolic link '/var/lib/ubuntu-server-iso-testing/isos/ubuntu-alternate/ubuntu': File exists
INFO:root:Checking/Downloading current build for variant alternate from http://cdimage.ubuntu.com/precise/daily
INFO:root:Remote file not available. Retrying in 15 minutes
INFO:root:Downloading ISO...
reading seed file ubuntu/precise-alternate-amd64.iso: *********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
Read ubuntu/precise-alternate-amd64.iso. Target 100.0% complete.      
verifying download...checksum matches OK
used 801112064 local, fetched 0
Syncing precise ubuntu alternate amd64
Verifying ubuntu/precise-alternate-amd64.iso
Verification succeeded
INFO:root:Local file doesn't match checksum. Aborting!
Build step 'Execute shell' marked build as failure
Archiving artifacts
Recording test results
[description-setter] Could not determine description.