What did you use to edit your cron.txt file? Did you edit this on a Windows machine? It showed up without a line break at the end; now that I added that, it seems to be running properly (the elf.txt file got removed, anyway).
Looks like you edited it again since that with the MAILTO link in there (if there are no errors and no output, you won’t get any mail, though). Try going to the next line; better, if you know how to use vi, use crontab -e (and set $VISUAL to “nvi” in your environment; how to do this is described in other posts in this forum).
the man page for crontab is also helpful - you need to look in section 5 for the information on the format of the file itself - “man 5 crontab”.