Dear Maintainer,

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   * What led up to the situation?running cron job
   * What exactly did you do (or not do) that was effective (or
     ineffective)? install from apt-get
   * What was the outcome of this action? receive multiple notices about "df:
/root/.cache/doc: Operation not permitted" from Cron Daemon
   * What outcome did you expect instead? none of these warnings

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