buildx failed with: ERROR: failed to solve: process "/bin/bash -c if [ -z \"$PYTORCH_NIGHTLY_URL\" ] ; then CUDA_VERSION_TAG=$(python${PYTHON_VERSION} -c \"print('cu' + ''.join('${CUDA_VERSION}'.split('.')[:2]) if '${CUDA_VERSION}' else 'cpu')\") && pip${PYTHON_VERSION} install --no-cache-dir --find-links https://download.pytorch.org/whl/torch/ torch==${PYTORCH_VERSION}+${CUDA_VERSION_TAG} torchvision==${TORCHVISION_VERSION}+${CUDA_VERSION_TAG} ; else pip${PYTHON_VERSION} install --no-cache-dir --pre --index-url ${PYTORCH_NIGHTLY_URL} torch==${PYTORCH_VERSION}.${PYTORCH_NIGHTLY_VERSION} \t torchvision==${TORCHVISION_VERSION}.${PYTORCH_NIGHTLY_VERSION} ; fi" did not complete successfully: exit code: 1