of tag <lastBuildDate> is not available.

[dipenpatel235]

• Version: 6.5
• Operating System: ubuntu 18.04
• Config File (if you have sensitive info, please remove it):

input {
	rss {
		interval => 300
		url => "https://www.projecthoneypot.org/list_of_ips.php?rss=1"
	}
}

filter {
ruby {
    code => "
test = event['title'] 
"
  }
}

output {

        elasticsearch {
                hosts => "localhost:9200"
                index => "myiplist"
        }
        stdout {
                codec => rubydebug
        }

}

• Sample Data:

• Steps to Reproduce:
  use https://www.projecthoneypot.org/list_of_ips.php?rss=1 rss input url and try to filter thoes data.
  u get below error.

• Error:

[2018-12-27T05:07:06,164][ERROR][logstash.inputs.rss      ] Uknown error while parsing the feed {:url=>"https://www.projecthoneypot.org/list_of_ips.php?rss=1", :exception=>#<RSS::NotAvailableValueError: value <December 26 2018 05:30:03 PM> of tag <lastBuildDate> is not available.>}
[2018-12-27T05:07:06,167][INFO ][logstash.inputs.rss      ] Command completed {:command=>nil, :duration=>9.692115}

[fabionoth]

", :exception=>#<RSS::NotAvailableValueError: value <> of tag <pubDate> is not available.>}
Same problem. But, with tag.