Cron does not run bash script, how to live?

Question

bash

script works locally
#/bin/bash
name="busya_$(date '+%d-%m-%Y')"
drush archive-dump --destination=/var/www/html/htdocs/sites/backup/" $name".tar.gz
crontab -e
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
* 12 * * * /var/www/html/htdocs/sites/backup/backup.sh >/dev/null 2>&1
What's wrong??(((

Answer 1

www.drush.org/en/master/cron

Answer 2

On behalf of which user should this script be executed?
# m h dom mon dow user command