Bugzilla

Sometimes, I'm getting a different error:
```
2019-10-11 21:48:49,340 urllib3.connectionpool DEBUG    http://localhost:None "POST /v1.18/images/load HTTP/1.1" 500 4
2019-10-11 21:48:49,340 root         DEBUG    Cleaning up /tmp/docker-squash-10vn23ow temporary directory
2019-10-11 21:48:51,259 root         ERROR    500 Server Error: Internal Server Error ("b'EOF'")
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/docker/api/client.py", line 222, in _raise_for_status
    response.raise_for_status()
  File "/usr/local/lib/python3.6/dist-packages/requests/models.py", line 940, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 500 Server Error: Internal Server Error for url: http+docker://localunixsocket/v1.18/images/load

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/cli.py", line 87, in run
    from_layer=args.from_layer, tag=args.tag, output_path=args.output_path, tmp_dir=args.tmp_dir, development=args.development, cleanup=args.cleanup).run()
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/squash.py", line 59, in run
    return self.squash(image)
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/squash.py", line 92, in squash
    image.load_squashed_image()
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/image.py", line 254, in load_squashed_image
    self._load_image(self.new_image_dir)
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/image.py", line 299, in _load_image
    self.docker.load_image(f)
  File "/usr/local/lib/python3.6/dist-packages/docker/api/image.py", line 298, in load_image
    self._raise_for_status(res)
  File "/usr/local/lib/python3.6/dist-packages/docker/api/client.py", line 224, in _raise_for_status
    raise create_api_error_from_http_exception(e)
  File "/usr/local/lib/python3.6/dist-packages/docker/errors.py", line 31, in create_api_error_from_http_exception
    raise cls(e, response=response, explanation=explanation)
docker.errors.APIError: 500 Server Error: Internal Server Error ("b'EOF'")
```

I'm unsure if this is intermittent or not. I've been slowly removing commands from my `Dockerfile` and committing the changes one-by-one, and _some_ of the builds fail due to `.../images/load`, and others fail due to `/var/lib/docker/tmp/docker-import-.../repo/.../json`

Sometimes, I'm getting a different error:
```
2019-10-11 21:48:49,340 urllib3.connectionpool DEBUG    http://localhost:None "POST /v1.18/images/load HTTP/1.1" 500 4
2019-10-11 21:48:49,340 root         DEBUG    Cleaning up /tmp/docker-squash-10vn23ow temporary directory
2019-10-11 21:48:51,259 root         ERROR    500 Server Error: Internal Server Error ("b'EOF'")
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/docker/api/client.py", line 222, in _raise_for_status
    response.raise_for_status()
  File "/usr/local/lib/python3.6/dist-packages/requests/models.py", line 940, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 500 Server Error: Internal Server Error for url: http+docker://localunixsocket/v1.18/images/load

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/cli.py", line 87, in run
    from_layer=args.from_layer, tag=args.tag, output_path=args.output_path, tmp_dir=args.tmp_dir, development=args.development, cleanup=args.cleanup).run()
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/squash.py", line 59, in run
    return self.squash(image)
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/squash.py", line 92, in squash
    image.load_squashed_image()
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/image.py", line 254, in load_squashed_image
    self._load_image(self.new_image_dir)
  File "/usr/local/lib/python3.6/dist-packages/docker_squash/image.py", line 299, in _load_image
    self.docker.load_image(f)
  File "/usr/local/lib/python3.6/dist-packages/docker/api/image.py", line 298, in load_image
    self._raise_for_status(res)
  File "/usr/local/lib/python3.6/dist-packages/docker/api/client.py", line 224, in _raise_for_status
    raise create_api_error_from_http_exception(e)
  File "/usr/local/lib/python3.6/dist-packages/docker/errors.py", line 31, in create_api_error_from_http_exception
    raise cls(e, response=response, explanation=explanation)
docker.errors.APIError: 500 Server Error: Internal Server Error ("b'EOF'")
```

I'm unsure if this is intermittent or not. I've been slowly removing commands from my `Dockerfile` and committing the changes one-by-one, and _some_ of the builds fail due to `.../images/load`, and others fail due to `/var/lib/docker/tmp/docker-import-.../repo/.../json`. It doesn't seem to be strictly related to the docker image size.