CUDA failed with error no CUDA-capable device is detected

Start with whisperx/main.py, whisperx/transcribe.py, and whisperx/asr.py, then inspect the reported faster-whisper CUDA initialization failure and the surrounding Docker runtime. Reproduce the failure after extended operation and identify why the container loses access to the CUDA device; done means transcription continues reliably without the no-CUDA-device error.

After some time (around 12h) running, the Scriber Docker loses the CUDA device.
I restart the container, everything works great, and after a while, it sticks.

/app/whisperx-env/WhisperX/.venv/lib/python3.10/site-packages/pyannote/audio/core/io.py:212: UserWarning: torchaudio._backend.list_audio_backends has been deprecated. This deprecation is part of a large refactoring effort to transition TorchAudio into a maintenance phase. The decoding and encoding capabilities of PyTorch for both audio and video are being consolidated into TorchCodec. Please see https://github.com/pytorch/audio/issues/3902 for more information. It will be removed from the 2.9 release. 
  torchaudio.list_audio_backends()
/app/whisperx-env/WhisperX/.venv/lib/python3.10/site-packages/speechbrain/utils/torch_audio_backend.py:57: UserWarning: torchaudio._backend.list_audio_backends has been deprecated. This deprecation is part of a large refactoring effort to transition TorchAudio into a maintenance phase. The decoding and encoding capabilities of PyTorch for both audio and video are being consolidated into TorchCodec. Please see https://github.com/pytorch/audio/issues/3902 for more information. It will be removed from the 2.9 release. 
  available_backends = torchaudio.list_audio_backends()
/app/whisperx-env/WhisperX/.venv/lib/python3.10/site-packages/torch/cuda/__init__.py:829: UserWarning: Can't initialize NVML
  warnings.warn("Can't initialize NVML")
Traceback (most recent call last):
  File "/home/appuser/.local/share/uv/python/cpython-3.10.19-linux-x86_64-gnu/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/home/appuser/.local/share/uv/python/cpython-3.10.19-linux-x86_64-gnu/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/app/whisperx-env/WhisperX/whisperx/__main__.py", line 102, in <module>
    cli()
  File "/app/whisperx-env/WhisperX/whisperx/__main__.py", line 98, in cli
    transcribe_task(args, parser)
  File "/app/whisperx-env/WhisperX/whisperx/transcribe.py", line 127, in transcribe_task
    model = load_model(
  File "/app/whisperx-env/WhisperX/whisperx/asr.py", line 340, in load_model
    model = model or WhisperModel(whisper_arch,
  File "/app/whisperx-env/WhisperX/.venv/lib/python3.10/site-packages/faster_whisper/transcribe.py", line 663, in __init__
    self.model = ctranslate2.models.Whisper(
RuntimeError: CUDA failed with error no CUDA-capable device is detected