buildbot failure in on openoffice-nightly-rat-aoo414

[buildbot]

The Buildbot has detected a new failure on builder 
openoffice-nightly-rat-aoo414 while building . Full details are available at:
    https://ci.apache.org/builders/openoffice-nightly-rat-aoo414/builds/749

Buildbot URL: https://ci.apache.org/

Buildslave for this Build: bb_slave4_ubuntu

Build Reason: The Nightly scheduler named 'openoffice-nightly-rat-aoo414' 
triggered this build
Build Source Stamp: [branch openoffice/branches/AOO416] HEAD
Blamelist: 

BUILD FAILED: failed

Sincerely,
 -The Buildbot