[syslog-ng] I/O error occurred while reading; fd='4', error='Operation not permitted (1)'

I seem to have 2.0.0 running in a jail via the "-C" option, but when I start the service I see the following in /var/local/chroot/syslogng/var/log/syslog: Jan 2 16:48:19 xpc1 syslog-ng[19522]: syslog-ng starting up; version='2.0.0' Jan 2 16:48:19 xpc1 syslog-ng[19522]: I/O error occurred while reading; fd='4', error='Operation not permitted (1)' The daemon does seem to continue to run fine, since I am seeing facilities logging their activity to /var/local/chroot/syslogng/var/log/syslog. However, that second line above seems to indicate a problem. When I run syslog-ng without the "-C" option I don't get this second line. Am I missing something in my jail? Is the jailing process documented?