Searching for MSDN Subscriptions, I ran accross this serp. I thought it was funny that the developer center returned a 500 error to google.
The wonders of hosting servers... Once i`ve seen in google SERPs my own site`s php file. When i clicked it i saw the php content as if it was a plain txt file Probably the bot visited during some tuning of the server.
Actually, it was. Google Cache shows the error. The serp text doesn't reflect the content from the cache, but the title does... strange :/