I don&#x27;t know if I&#x27;m using this tool incorrectly or if Docker containers contain any measures against what it tries.<p>On a machine running Linux 4.2.7 and a container created with Docker 1.9.1, the tool either failed with an error or said it had broken out but the root was still inside the container.<p>Modes &#x2F; Result:<p>* -0 &#x2F; no error, root still inside container<p>* -1 &#x2F; no error, root still inside container<p>* -2 &#x2F; no error, root still inside container<p>* -3 &#x2F; error, &quot;error mounting chroot: Operation not permitted&quot;<p>* -4 &#x2F; error, &quot;error creating block device: No such file or directory&quot;<p>* -5 &#x2F; error, &quot;error creating $nestdir&quot;<p>* -6 &#x2F; not tested<p>* -7 &#x2F; error, &quot;error attaching process&quot;<p>* -9 &#x2F; no error, root still inside container