Running Roberta on Race Multi choice dataset giving error 
Author: monk1337
Pull request: no
Labels: name: wontfix

I am trying to use the script provided for race dataset training using bert/roberta models. I am running the script and getting this error :


```
python3 run_multiple_choice.py --task_name race --model_name_or_path roberta-base--do_train --do_eval --data_dir $SWAG_DIR --learning_rate 5e-5 --num_train_epochs 3 --max_seq_length 80 --output_dir models_bert/swag_base --per_gpu_eval_batch_size=16 --per_device_train_batch_size=16 --gradient_accumulation_steps 2 --overwrite_output
/home/admin/Monk/lib/python3.6/site-packages/transformers/training_args.py:332: FutureWarning: The `evaluate_during_training` argument is deprecated in favor of `evaluation_strategy` (which has more options)
  FutureWarning,
11/19/2020 12:22:36 - WARNING - __main__ -   Process rank: -1, device: cuda:0, n_gpu: 4, distributed training: False, 16-bits training: False
Some weights of the model checkpoint at roberta-base were not used when initializing RobertaForMultipleChoice: ['lm_head.bias', 'lm_head.dense.weight', 'lm_head.dense.bias', 'lm_head.layer_norm.weight', 'lm_head.layer_norm.bias', 'lm_head.decoder.weight']
- This IS expected if you are initializing RobertaForMultipleChoice from the checkpoint of a model trained on another taskor with another architecture (e.g. initializing a BertForSequenceClassification model from a BertForPretraining model).
- This IS NOT expected if you are initializing RobertaForMultipleChoice from the checkpoint of a model that you expect to be exactly identical (initializing a BertForSequenceClassification model from a BertForSequenceClassification model).
Some weights of RobertaForMultipleChoice were not initialized from the model checkpoint at roberta-base and are newly initialized: ['classifier.weight', 'classifier.bias']
You should probably TRAIN this model on a down-stream task to be able to use it for predictions and inference.
Traceback (most recent call last):
  File "run_multiple_choice.py", line 237, in <module>
    main()
  File "run_multiple_choice.py", line 171, in main
    if training_args.do_train
  File "/home/admin/Monk/hf_mcq/utils_multiple_choice.py", line 113, in __init__
    with FileLock(lock_path):
  File "/home/admin/Monk/lib/python3.6/site-packages/filelock.py", line 323, in __enter__
    self.acquire()
  File "/home/admin/Monk/lib/python3.6/site-packages/filelock.py", line 271, in acquire
    self._acquire()
  File "/home/admin/Monk/lib/python3.6/site-packages/filelock.py", line 384, in _acquire
    fd = os.open(self._lock_file, open_mode)
FileNotFoundError: [Errno 2] No such file or directory: '/RACE/cached_train_RobertaTokenizer_80_race.lock'
```

Comments:
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.


This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the [contributing guidelines](https://github.com/huggingface/transformers/blob/master/CONTRIBUTING.md) are likely to be ignored.