How to save model in S3 with Trainer?

When I do
Trainer.save_model(‘s3://path_to_folder’)

I got no error with message
Saving model checkpoint to s3://path_to_folder
Configuration saved in s3://path_to_folder/config.json
Model weights saved in s3://path_to_folder/pytorch_model.bin
tokenizer config file saved in s3://path_to_folder/tokenizer_config.json
Special tokens file saved in s3://path_to_folder/special_tokens_map.json

But corresponding folder in S3 is empty.
How correctly save model in S3 with Trainer.save_model?