File "/usr/sbin/kojid", line 2009, in handler
broot.init()\n File "/usr/sbin/kojid", line 467, in init
rv = self.mock([\'--init\'])\n File "/usr/sbin/kojid", line 389,
status = os.waitpid(pid, os.WNOHANG)
OSError: [Errno 10] No child processes\n'
It looks like the mock subprocess is dying before kojid can wait on it.
Normally mock should never exit that fast, though we should probably
handle that error a little more informatively.
Try running mock manually on your build system to see if you can
replicate the error that way. You might also try running kojid in the
foreground (--fg option) in order to see the output from mock.