fatbuildctld crash on StopIteration on unexpected end of task output

[rezib]

fatbuildrctl may crash on unexpected end of task output:

$ fatbuildrctl --uri https://build.rackslab.io/devs watch c5bddf58-9094-488d-905c-71f7ea2ebad8
…
▿▿▿▿▿▿▿ 〚 lintian static analysis 〛 ▿▿▿▿▿▿▿
su: warning: cannot change directory to /nonexistent: No such file or directory
E: slurm-web changes: bad-distribution-in-changes-file bookworm
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/fatbuildr/console/client.py", line 294, in _console_generator
    msg = ConsoleMessage.read(**kwargs)
  File "/usr/lib/python3/dist-packages/fatbuildr/console/__init__.py", line 101, in read
    buffer = reader(struct.calcsize('HI'))
  File "/usr/lib/python3/dist-packages/fatbuildr/console/client.py", line 282, in reader
    buffer = next(iterator)
StopIteration

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/bin/fatbuildrctl", line 33, in <module>
    sys.exit(load_entry_point('Fatbuildr==2.1.0.dev57', 'console_scripts', 'fatbuildrctl')())
  File "/usr/lib/python3/dist-packages/fatbuildr/cli/__init__.py", line 34, in run
    cls()
  File "/usr/lib/python3/dist-packages/fatbuildr/cli/fatbuildrctl.py", line 437, in __init__
    args.func(args)
  File "/usr/lib/python3/dist-packages/fatbuildr/cli/fatbuildrctl.py", line 1112, in _run_watch
    self._watch_task(task_id, interactive=False)
  File "/usr/lib/python3/dist-packages/fatbuildr/cli/fatbuildrctl.py", line 1092, in _watch_task
    tty_console_renderer(self.connection.watch(task))
  File "/usr/lib/python3/dist-packages/fatbuildr/console/client.py", line 309, in tty_console_renderer
    for msg in console_generator:
  File "/usr/lib/python3/dist-packages/fatbuildr/console/client.py", line 285, in console_http_client
    yield from _console_generator(False, reader=reader)
RuntimeError: generator raised StopIteration