If you recently noticed that your News site is spewing errors in Google Webmaster Tools, under the "Diagnosis" - "News Crawl" reports, do not worry.
A Google News Help thread has confirmed reports from Google, that this is just a bug.
Googler, Inbal, explained:
Thank you for taking the time to report this problem with the Webmasters Tool giving error messages when publishers click on "Diagnostics" --> "News Crawl".
We're aware of this bug, and our engineering team is actively investigating to find a solution.
We apologize for any inconvenience and hope to resolve this issue in the near future.
I personally do not see any errors for this site and we are in Google News. So either it is fixed or it is impacting only a group of publishers.
Forum discussion at Google News Help.