I don't know why it doesn't show up; it's listed in the result parser log:
Seems that there is a problem on the client side because there is missing data from the darwin box:
Linux:
$ ls -1Fsh result_default total 148k 4.0k buildid.txt 4.0k machineid.txt 4.0k repack/ 132k xenofarm_result.tar.gz 4.0k xenofarmclient.txt
Darwin:
$ ls -1Fsh result_default total 16k 4.0k buildid.txt 4.0k machineid.txt 4.0k xenofarm_result.tar.gz 4.0k xenofarmclient.txt
The tgz sent by the Darwin box lacks all the files from the repack directory, which i can't find anywhere on the Darwin box.
Is Darwin 7.x the only platform affected? I don't see any OpenBSD nor Cygwin clients in the result pages.