buildbot failure in on openoffice-linux64-rat-aoo410

[buildbot]

The Buildbot has detected a failed build on builder 
openoffice-linux64-rat-aoo410 while building . Full details are available at:
    https://ci.apache.org/builders/openoffice-linux64-rat-aoo410/builds/378

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

Buildslave for this Build: tethys_ubuntu

Build Reason: forced: by IRC user <dacha> (privmsg): delete old files
Build Source Stamp: HEAD
Blamelist: 

BUILD FAILED: failed ls_1

Sincerely,
 -The Buildbot