[JENKINS] Lucene-Solr-SmokeRelease-master - Build # 624 - Failure

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Build: https://builds.apache.org/job/Lucene-Solr-SmokeRelease-master/624/

No tests ran.

Build Log:
[...truncated 8121 lines...]
changes-to-html:
    [mkdir] Created dir: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-master/lucene/build/docs/changes
     [exec] Can't locate XML/Simple.pm in @INC (you may need to install the XML::Simple module) (@INC contains: /etc/perl /usr/local/lib/perl/5.18.2 /usr/local/share/perl/5.18.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18 /usr/local/lib/site_perl .) at /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-master/lucene/site/changes/changes2html.pl line 26.
     [exec] BEGIN failed--compilation aborted at /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-master/lucene/site/changes/changes2html.pl line 26.

BUILD FAILED
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-master/build.xml:545: The following error occurred while executing this line:
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-master/lucene/build.xml:482: The following error occurred while executing this line:
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-SmokeRelease-master/lucene/common-build.xml:2513: exec returned: 2

Total time: 3 minutes 34 seconds
Build step 'Invoke Ant' marked build as failure
Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any