buildbot failure in on aoo-win7

[buildbot]

The Buildbot has detected a failed build on builder aoo-win7 while building . 
Full details are available at:
    https://ci.apache.org/builders/aoo-win7/builds/398

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

Buildslave for this Build: bb-win7

Build Reason: forced: by IRC user <dacha> (privmsg): clean up previous build
Build Source Stamp: HEAD
Blamelist: 

BUILD FAILED: failed kill_nmake kill_perl kill_devenv_exe kill_devenv_com end

Sincerely,
 -The Buildbot