Cron <root at backup1> /usr/local/bin/rsnapshot -c /usr/local/etc/rsnapshot_cvs.conf daily

[Cron Daemon]

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rsnapshot encountered an error! The program was invoked with these options:
/usr/local/bin/rsnapshot -c /usr/local/etc/rsnapshot_cvs.conf daily 
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ERROR: /usr/local/bin/rsync returned 255 while processing backup at svnhub.int.autonlab.org:/var/CVS/