Permission error while squashing image

[tarnfeld]

Not entirely sure what this is related to, perhaps an environmental error or something more serious. Let's look into it.

Traceback (most recent call last):
  File "/root/.pex/install/portainer-0.0.0-py2-none-any.whl.7628d6418f9f3bffd5f083bef25af07b42830cc4/portainer-0.0.0-py2-none-any.whl/portainer/app/executor.py", line 280, in _build_image
    image_id
  File "/root/.pex/install/portainer-0.0.0-py2-none-any.whl.7628d6418f9f3bffd5f083bef25af07b42830cc4/portainer-0.0.0-py2-none-any.whl/portainer/app/executor.py", line 343, in _squash_image
    layers_tar_fh = download_layers_for_image(self.docker, sandbox_dir, head_image_id)
  File "/root/.pex/install/portainer-0.0.0-py2-none-any.whl.7628d6418f9f3bffd5f083bef25af07b42830cc4/portainer-0.0.0-py2-none-any.whl/portainer/util/squash.py", line 57, in download_layers_for_image
    for chunk in docker.get_image(image_id).stream():
  File "/root/.pex/install/docker_py-0.4.0-py2-none-any.whl.e0fa1f14c557a519376f527fc49d19691f0dcda3/docker_py-0.4.0-py2-none-any.whl/docker/client.py", line 497, in get_image
    self._raise_for_status(res)
  File "/root/.pex/install/docker_py-0.4.0-py2-none-any.whl.e0fa1f14c557a519376f527fc49d19691f0dcda3/docker_py-0.4.0-py2-none-any.whl/docker/client.py", line 87, in _raise_for_status
    raise errors.APIError(e, response, explanation=explanation)
APIError: 500 Server Error: Internal Server Error ("open /mnt/mesos/sandbox/docker/aufs/mnt/b6a900d286e177ed4afe8d21606e3ee3a35e5218db62622ec46100855c0bb019/.wh..wh.plnk/100.17055525: operation not permitted")