The dataset "the_pile", subset "enron_emails" , load_dataset() failure
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Thanks for reporting @shaoyuta. We are investigating it.

We are transferring the issue to "the_pile" Community tab on the Hub: https://huggingface.co/datasets/the_pile/discussions/4
### Describe the bug

When run 
"datasets.load_dataset("the_pile","enron_emails")" failure
![image](https://user-images.githubusercontent.com/52023469/208565302-cfab7b89-0b97-4fa6-a5ba-c11b0b629b1a.png)


### Steps to reproduce the bug

Run below code in python cli:

>>> import datasets
>>> datasets.load_dataset("the_pile","enron_emails")


### Expected behavior

Load dataset "the_pile", "enron_emails" successfully.

### Environment info

Copy-and-paste the text below in your GitHub issue.

- `datasets` version: 2.7.1
- Platform: Linux-5.15.0-53-generic-x86_64-with-glibc2.35
- Python version: 3.10.6
- PyArrow version: 10.0.0
- Pandas version: 1.4.3

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