See attached build log. (Please do not complain about the need for looking at the build log until you can provide an easy way to open bugs with the correct data picked out of a tinderbox log. Thanks.)
Created attachment 245117 [details] Build log
Treecleaners, please consider its removal per following reasons: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=374521
Fixed in -r2.