Reading the cron(8) man page --
".... When executing commands, any output is mailed to the owner
of the crontab (or to the user named in the MAILTO environment
variable in the crontab, if such exists).
As long as what you're doing dumps errors to stdout or stderr, you
should receive an email about it :-)
--
Hassan Schroeder ------------------------
hassan.s...@gmail.com
http://about.me/hassanschroeder
twitter: @hassan