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 245984 [details]
This has been reported upstream with a fix. Erlang 14B should have the fixed and due 15 Sep 2010.
*** This bug has been marked as a duplicate of bug 263129 ***