Summary: A feed under Crawl and Index > Feeds is in a failed state. Error message "Skipping rest of the feed" (may vary) is observed when the feed is opened.
Cause: The feed file is not valid XML.
Troubleshooting Steps: The feed file you have submitted contains errors and does not constitute valid XML. For example, special entities such as &, <, >, ", ' are not escaped.
Use XML debugging tools to find the root cause of the problem. For example, use
xmllint command line tool:
$ xmllint -f <path_to_your_xml_file>
Online validation tools are also available. For example: http://www.xmlvalidation.com