This looks like a SysPrep problem. Can you check the logs at C:\Windows\System32\Sysprep\Panther ?
RobertDrink coffee.. Do stupid things faster with more energy...
As Robert has already said it is a Windows sysprep problem, you can look at the logs on the VM before it gets destroyed to get more detail into what is failing.
In order to help your troubleshooting I would deploy a VM from the template withing vCenter (bypassing vRA for now) as you should get the same error but not have the issue of vRA destroying it just as you are looking through the logs.
If I were to hazard a guess I would actually say the issue lies in the customisation spec within vCenter. Check to make sure the settings are valid, especially around license key and/or Administrator password/auto-login. It can sometimes help to download the customisation spec xml file and check the tags to make sure nothing contradicts.
The sysprep log will tell you (in Microsoft talk) what is wrong though.