What do these messages from FreeBSD Tinderbox mean?

[Barry Hawkins]

I am periodically receiving messages from "FreeBSD Tinderbox" with the 
subject "[current tinderbox] failure on powerpc/powerpc".  Can anyone 
provide some insight for me as to what these messages are about?  I am 
suspecting it is an automated build mechanism and since the project is 
still very new and somewhat unstable that these messages are appearing.

Thanks,
-- 
Barry C. Hawkins
All Things Computed
site: www.allthingscomputed.com
weblog: www.yepthatsme.com