sudo cron -l -u otheruser 给出身份验证错误 CentOS-6.10

Question

CentOS-6.10

我以前从来没有遇到过这种情况：

sudo crontab -l -u thatuser
[sudo] password for thisuser: 

Authentication service cannot retrieve authentication info
You (thatuser) are not allowed to access to (crontab) because of pam configuration.

为什么我不能以 root 身份列出（或编辑）其他用户的 crontab？