Ubuntu :: Root Job Sending Multiple Emails?

I have an rsync backup job scripted and run by cron at 12:00 every day. It emails me the log from rsync. The problem is that it sends the same email every minute starting at 12:00 and ending at 1:00. I can't figure out what I did to cause this. It is not happening on my other ubuntu server.

Code:
# m h dom mon dow command
* 12 * * 1,2,3,4,5 /home/barry/bin/backup.sh > /dev/null
Code:
#!/bin/sh
rsync -aut /usr/share/library /mnt/backup/WordPress > /home/barry/backup.log

[Code]....