title: gsutil rsync -C "continue" option not working
body: <p>gsutil rsync -C "continue" option is not working from backup_script:</p>
  
  <pre><code>$GSUTIL rsync -c -C -e -r -x $EXCLUDES $SOURCE/Documents/ $DESTINATION/Documents/
  </code></pre>
  
  <p>From systemd log:</p>
  
  <pre><code>$ journalctl --since 12:00
  Jul 25 12:00:14 localhost.localdomain CROND[9694]: (wolfv) CMDOUT (CommandException: Error opening file "file:///home/wolfv/Documents/PC_maintenance/backup_systems/gsutil/ssmtp.conf": .)
  Jul 25 12:00:14 localhost.localdomain CROND[9694]: (wolfv) CMDOUT (Caught ^C - exiting)
  Jul 25 12:00:14 localhost.localdomain CROND[9694]: (wolfv) CMDOUT (Caught ^C - exiting)
  Jul 25 12:00:14 localhost.localdomain CROND[9694]: (wolfv) CMDOUT (Caught ^C - exiting)
  Jul 25 12:00:14 localhost.localdomain CROND[9694]: (wolfv) CMDOUT (Caught ^C - exiting)
  </code></pre>
  
  <p>because owner is root rather than user:</p>
  
  <pre><code>$ ls -l ssmtp.conf
  -rw-r-----. 1 root root 1483 Jul 24 21:30 ssmtp.conf
  </code></pre>
  
  <p>rsyc worked fine after deleting the root-owned file.
  This happened on a Fedora22 machine, when cron called backup_script which called gsutil rsync.</p>