buildx failed with: ERROR: failed to solve: process "/bin/bash -c if [[ ( \"${EXTRA_BACKENDS}\" =~ \"coqui\" || -z \"${EXTRA_BACKENDS}\" ) && \"$IMAGE_TYPE\" == \"extras\" ]]; then make -C backend/python/coqui ; fi && if [[ ( \"${EXTRA_BACKENDS}\" =~ \"parler-tts\" || -z \"${EXTRA_BACKENDS}\" ) && \"$IMAGE_TYPE\" == \"extras\" ]]; then make -C backend/python/parler-tts ; fi && if [[ ( \"${EXTRA_BACKENDS}\" =~ \"diffusers\" || -z \"${EXTRA_BACKENDS}\" ) && \"$IMAGE_TYPE\" == \"extras\" ]]; then make -C backend/python/diffusers ; fi && if [[ ( \"${EXTRA_BACKENDS}\" =~ \"transformers-musicgen\" || -z \"${EXTRA_BACKENDS}\" ) && \"$IMAGE_TYPE\" == \"extras\" ]]; then make -C backend/python/transformers-musicgen ; fi" did not complete successfully: exit code: 2