Medium-sized dataset conversion from pandas causes a crash 
Author: Antymon | Pull request: no | State: closed

Hi, I am suffering from the following issue:

## Describe the bug
Conversion to arrow dataset from pandas dataframe of a certain size deterministically causes the following crash:

```
  File "/home/datasets_crash.py", line 7, in <module>
    arrow=datasets.Dataset.from_pandas(d)
  File "/home/.conda/envs/tools/lib/python3.9/site-packages/datasets/arrow_dataset.py", line 783, in from_pandas
    table = InMemoryTable.from_pandas(
  File "/home/.conda/envs/tools/lib/python3.9/site-packages/datasets/table.py", line 379, in from_pandas
    return cls(pa.Table.from_pandas(*args, **kwargs))
  File "pyarrow/table.pxi", line 1487, in pyarrow.lib.Table.from_pandas
  File "pyarrow/table.pxi", line 1532, in pyarrow.lib.Table.from_arrays
  File "pyarrow/table.pxi", line 1181, in pyarrow.lib.Table.validate
  File "pyarrow/error.pxi", line 84, in pyarrow.lib.check_status
pyarrow.lib.ArrowInvalid: Column 1: In chunk 0: Invalid: List child array invalid: Invalid: Struct child array #1 has length smaller than expected for struct array (1192457 < 1192458)
```

## Steps to reproduce the bug
I have a dataset made from replicated single example mocking a dict representation of a publication.
I copy over this example 140k times and create a pandas frame.
I use 'Dataset.from_pandas' and boom

```python
# Sample code to reproduce the bug
import copy
import datasets
import pandas
# serialized dict is quite long to be realistic representation of a publication content
paper_as_dict=eval("{'article_id': '2020-11-05T14:25:05.321Z02bc3286-91b7-486a-9c74-4f457fbc586a', 'sections': [{'section_id': 'body.0', 'paragraphs': [{'sentences': ['11010111001000000011010011110011101110111011000100001010011100101001111010110111101011101111101010101110001111011110111010111', '1101100110110010010101010100110011000111001100100000011100010111010000011100001101111000000011010111001111001010101111110011010010111011000110100110010', '101011011000010100000010011001011011000000110011011110000101001110110000010001100110111100011100110101010010110000101', '1101101110101010101000000010101011111001111000101000110001110100111000100000011001110100110000110100111011001010110011101001001110']}]}, {'section_id': 'body.1', 'paragraphs': [{'sentences': ['11111100100100111000101001011110100110011001011011001001100110100111011010000110011000010001010100101110001001101011110111110101111100001001001000011110110010110011100110110111110011100011111000101010111010101011001110000100000001001010010010011101111100011010', '10101000110000110111110011101111000101010010001001010000001111001100000010001000001110111110010011101000000111011', '111010011111101111110011111110110001000111100101001000100110101111110000111000111111110000101001101000110011010111011101001010110110001000100000001110001111100110110001110001001100011010100110100010100111000110110100010010100101011110000110000101010010001110101100000']}, {'sentences': ['111110011110110110001111001101011110010110100011101010110101011001101110110111100000111101010110011110111101001111000101110001001010010101100111111001001000011101000100110000101', '011101101101111101001100101010000010111101100101110100101000001100010100110011010010100001101001110111100011010011011111000111111101110001010111010011010110001000010101100110000100010110101110110011001010011001100111101100001001', '1110001011011010101001100001110001110001000111111111101110100001011101101001110100000110000011010001101010101110101110101101001010100100010000000010110010010010', '11101111000111111100111110010000111101110010010101001111011001111110011000011100110001010010000100101010', '111000110110110010101100010010100001100100110010101000001000011101000100101011011010000011001011011111001101100001110010100001111110111001001010101100100110001011011100000101010010000000001100010000101100110110111101110010100010011101110110111010011011000011001010111011100000000010101001011000100000011010100011101001011001010010011110100100']}, {'sentences': ['001101111100001101001001001110000110010101011101001001111111011000111001111011101011110111000000100001110110101110001010001111110100010', '0000110010110101001100011011000011001101001110001000000110010101000011101011110110000000100111000001010000101011111011110001001100001110101010101110101011111000000011001111011110001010010111010000100100000001111001011100101111010101111001001101100101001101111000111011010110010001010010010111010000001101101111100101000111101011001000101', '00000101100101100111101010000101011100101100001100011001100100001100001010001010010011001001111001000010100010000110100111110000001000101000111100010111110011000100000111100010000100010111100010101', '111100110010100110000010010101010101110011110100000101110000000111010101111001011110010101001110000001001000010110010010011110111110010110100101110011001101110111001111100011100100011110010010100101011111111']}, {'sentences': ['1100001110101111000001011001100110001011100011110110010011001000101000011110010101010011011000111010000101010011010000000111011001000010100101000011111101000000000101111000', '1110101000100110001111000011000101110111001100101010011001100011010011111111111010101011010101010011000101001100100000110010100110110110110001101100', '00010001100100101100100111111110111111101000100110101111101111110101110001010001011100000000000011010101101001111010001110101101110011001011111101110100010000111101', '011100011101011001000110010110100100000010100010010110011000000010101110011111111101010010010001100110101010010001100010110011110001011011101010111111100100110110010111101001100101010111001', '10111000011010101111110110011010101011111001000001010010111111010010111111100100010100110100101101110100110011001000110100000111000100110000001000111010', '0010011111111011100111010001111001011101001010000010110000010111000101001101000011101110100100000000100100010010101010100011100101001000100110110000010111111110000011011101111000111010']}]}, {'section_id': 'body.2.0', 'paragraphs': [{'sentences': ['110010010011001110100100011001111100010011110111101011011011001010010010010011101011', '000110101110011011101011000000100011111000001100011011110101101011000110011010001010001101101100000111100101001011111001001101111', '1000011100100000100100100010010000111011000100110010000011110111100110110001101001010100011111010100101000111', '11110111111000110010000000000100010010110001100010001010000111011000101100011010010101110110011010110101001101110011101011101100000001000100101011010110110100101011101010010101101000011110000010101011001011000001000000001010110000100010000100011110101001111100001000100000111000001010011111111110101010100011011000010000111000110', '1001000111011000111110001111111001100001000000101000111011101101100101010110001101000000001111010111100011111000000100001001110', '100110010111010101111010100000010001110101111001010010001100001110100100100101110011010101001000100101000100100011001110001100111000010010011011000010011010010000110001000000100011110010110110011010001100111010111110011']}, {'sentences': ['10010101011100010111011111001001001010100011001001111101101001000000001111101110000111101011000001001011101110101001100010010001101111001110000100010010001001101111011111110010011011110011', '110001110010110000101111000000110010010010100000010100001111101101000101100000000110000000011111011001111000010110110001011010011011101100100110011000100110101010111010111111000111001111010110010001001110100001011011000110000000111101110000001111011011101110100000100010000110001000000110100000', '101010000000010000110110111000110000100111000001110100101101101010001010010010101010100111010110001001000101011110010011001001001110111001101101100100011110011011110101100010110111001010000001000110100000001010011111111110111010011110001001110100011011000101011000110110011011010110100100011111111011100111110110000110011011110110110011101010101111001101010110101000000001100101111010000101110', '1010100110111111111000110110111110010100000100001110101110111001011000010001110110001111111110000101001001110010001110000111010101111010111111011100100011100111111101101111000010001100101000010001100110110100110111111100100011001011000001111110010100110111000010011110111011001101100000101011111110101000011000010', '00000001110000101001110101110011101001110011000111111101111101111000010011100000101000001011001110', '101000111010010000011010011010011010010010100010110100011100100111011101010100101110100111010001000000', '01101000110001101011001101100010100011011010000000001010101000010101000110100010000000110001110001010010000000101101000011000100000110011101100001010100011111101010010110001101110101010111101100001110000011001101', '0010010111000011110010011110001010100000111100001011010100100010101010010011101101100110001001111001000110000111011110010000110101010110111111010110100000011010001001010001000110001101101000101110001011110000101101110000110010110010111001100010011011100011', '00110111110000000100110111101011000100100110001000001001101011001000010100100001100111100110000110110101111010000010101000000101000011001011101001', '0100100001000111001110110110000001000100111001101101110100100111010111110001110010110111100110011111001001000011101110100101111011000110100000111010011101']}, {'sentences': ['100001001011101111111100110111011110001101111101100001000110110000100101011000000100000', '10101001001111110101001010100110011110101101001']}]}, {'section_id': 'body.2.0.0', 'paragraphs': [{'sentences': ['1110101100001100011000101000010000100010101101010110101011100101110110110111010101001100100000000111011001000100011110101011111010100101001010000010001001101010100011110010101110011001100010000100110011000011101010001000111001000001100', '101000000011001001110101000100101010000111000111100010010001111111100110001100000100011010011010010101101111010101010000110011101001111001111011111001110001010000110101101011101111010000001100', '01100001011110010100000101001101111101010011100010011001011110110010010011100101000', '0011100111000101111000010001111100000111000101110001111010001100001000111010000101100001110101100111111', '00001100000011110001011010010110000000111110110001111000110000011011001110000000100011001010110000010000010001101010101100000010011011000101011111100010010', '1011101011101111000001100100111000011000010010011110011000110111010010111100111101100110011010000110000111000110111110101111000001000010011101111000110000100011110101101101001101000110010000001000010011011010101100', '1000010011100011100000010011011111111110101101111011101010010111000000101011000000110101111000010011', '01100000110011001110101111101101011001011101000010001100101010100011010101010100111011011110100010100111', '011011010100011011110010101000110001111110110']}]}, {'section_id': 'body.2.0.1', 'paragraphs': [{'sentences': ['00111011011101000100100111000001101001011000111100100010101001010011001011000010011111001100000100010001100101110011001000110001101011010111011111011000010011010010111010011111101000110111011100010011100111111110110111011', '011011010101101101010000001011010110011111011110100111010101010110001101000010011111000011100', '110001000110010000000111101110111110101110111000101000010001110101000101001000111000010001011101010000110001010001101001001110111110111010111010011101000101101010000', '001000111110100110000001111100000111001110111001110111001000111010001001100111001101000001001001010111000111011100001111011001111110001011000111110011111101011101000100101001111011100001000110101010101111111110011111111011000101110001000000000100111011111011001100111', '11010101100010010100010010010101001011001011000001100010101111111101001101110011001010010100000111010101', '01110000110011111000110010011010000011100000010010001111100010010100100001011011111110001100', '011101111100011101100111110101111001101010010001001110101100001101000000111000']}]}, {'section_id': 'body.2.0.2', 'paragraphs': [{'sentences': ['0111011000110100110000001011001110111000011110100111011000000001000010001111111001101111011100101110101101000111000101000010000111011010110000011101111110111110100111000111000011', '00100110111000110101100111000110100010011010010101001010011000000101000110100110011010011111000100000011000000010001010000100111101011111111101010001111010000001011100001110100000101001101101010011011101000', '000001110001010010100101010100010101001100011001001101101101110111011111101010010111010110110111011110101100001000011110111011001', '0001110010111110100110110011000001111100100100110101011010010101010100101000010101000100101000011011', '1000010010010101001100101110010111010100000110101110000000111001111111001011111010000011110001011001001001000101', '0001111100111010010100010111010110011011000000001111010010110001000011010001100111101110001110000011010101111100001000011010110100000100100001111011110110000000101000010001111001010010110101110111101101110111000100', '1000101100001000100001101110111110000100000001000010101111010011010010010111011010100011001000100100001010001100110']}]}, {'section_id': 'body.2.0.3', 'paragraphs': [{'sentences': ['1010100111100011110110101011100001011010011010100100010011000110111000001010010110111001001101111000010100100110101001010001010001000110010000001', '100010101010100111000011111101010100101110011000100011100100100111000010000011001010010111011010000101010011011110111001010110', '0110000110110110110011011000011010010000001010011000010001011110110010000100011111010100110111111010010111000101111', '10100100000011100010110110011111011011101101111000001001010100001001011010000011001010101100000', '1011111111100001001100000010000100110010101000010100111111110010110011101110000101101011101', '10001111110000011100100000101100000000010000100000011100110000011110111010011101010111101001111000100000000110000011010010001100110111100001001011101011001111110010100111001001010001010011010010010111001101110101110000101011', '101101111111101101010010000110111110000110000111001001010011111101011001011010101100010100110101101011100111100100110010001011110001110010000011101100100100001001110010000010011111100110101']}]}, {'section_id': 'body.2.1', 'paragraphs': [{'sentences': ['1010010011010011001111111001000110010001101111101011001011011000101001010101010001000110100011110101110001110110111010010010100100111000101100100101111110100000011111001101010111101010100101011011110111111110', '000010101101111100000110010110011001111100001101011101000100010001001001000000101101000001110000011010111100000010010000010101110101100010011000101110110111111001000101000111000110100001001100001010101010100011', '0000000011101110111100100010111100101010110001111101110110010000100100010000101001101111001111001001100110010011010000101001110010000000100101011101001010100100011101101001011000010111110100101010110110011001110000110010010111110110101100001011101001100111010001000010111010001010000100010010011110111100110011100011111101101000011100111110101010100110001100100000100011011010111000111110010110100010111101001001101000001100100010000111110000011101111100111101000000000']}, {'sentences': ['01011000010110011000000101101000110101011010100111011001001001100001101101111101111001101111100101111001101011011001011110110110110100001100111111010100101110111111101000101100101010110011111011100101101010100110111001111100100011001110011101000110100000001100001100110001110101001000011010000110101011010000001111100100000100101110011000001001010011011101100011000001100000011', '1001100000101000000011110100110001100001101001100011010000111111010110101111001000100111000011010100100000110110001', '10010011000110110111010110000010010000000111101000100101100111101101001100111110101001001111100001110011110000010101000001000000010100011011110011000100110101001100110111111001101000011010100110000000011110001000101010101000110010010']}]}, {'section_id': 'body.2.2', 'paragraphs': [{'sentences': ['000011000000010011000001101111000101000111111111111010001011110000011001010111010101010110001111110000010', '10101001101011101010001111011000110100000100011110010001100111111101101100010010111110110101101011000011000001101110010111011111100111110000000101110010111', '100001011110010111010110001101101001100000000001000010110101011001111100101101101111010010111111000000111001111010011111000100010001111011110001010000110010101010111110100101011011100001010101000001011011111111101', '1000110111111011101000110101001111111111000100011001000011010100001010011110001111010011011111000111011100101001011111001000010101110110101000111011111111010010001101001010110111000011110101011000010000110', '1011100000100000010101101111001001100110111000010001011010111111000000001010101001111011101011010101101001111101101100101001011101000011011010001001101100100111101111111100010011010101111011100001100001000100101100100110101000010000011000000011001100000110000001', '0001001101111001111111010000001101010110110110100110110100000100110101101010010101011000010010111011000010111110000001110101110111000010011000100110111001000111011000100101110111111', '0110010010011000011010001111001100101001100001001000010100101100010110000000101010110001001010001100111101010001110010010000111011100101101010111111101001100010001011100110010100110111010101000100001110000101110011111011111000010101010110101100010010111100100010010100111110111100101010100011101001110110010000011110001010101010000100010000100111001111011101', '000001010000010001100000101011000000110101000100010111111100101111111000110111001001110110101111110011100001001000011001010000011011', '0101101001010101001101010100011000111011001000100001110100110011100000001001010110001101010110011100111111100101101111101111011001111111110010111010011011011111011011110000101011010', '11000001110111000001100100001110000111001010000101011011101010111001011100010010010111111111000011111110010111100011100110001001100011111010100111110111001110010', '0100010110100001010101110111100011100100010111111011101001100101111110101011010010101111001000101001111000001110001100011001110010100110101100110100100000001010101101011110011001000101100111001001001110100', '100000100010011111001101010000100110011110001100000010010110110100000111111011010100101111010111001110101000100001111101001110000011010110000010100', '00100110000011100101000110110001000011101000011010101000010001111011100001111111001011100111101000001000000110110001000101111010010010001100111', '0110110100011001110011001111100010101001011111011001011001101101010010101101110101010100001000100100000111101110001001110111000110011101101010100000101', '0011111010010011011101010110100110000011000011100100101011011001110110001110001111000011010111011000110100111111011101110111000010010000011011010011011100000011101100110110100100000010110101110100110101001100111011101001010111011011110100110101110010011011010001010111110011001000010100010101010010110010010110000100110001000011010011000100101011010100100111010']}]}]}")
d=pandas.DataFrame.from_records(copy.deepcopy(paper_as_dict) for _ in range(140_100))
arrow=datasets.Dataset.from_pandas(d)
```

## Expected results
The dataset should be converted without error.

## Actual results
Error `pyarrow.lib.ArrowInvalid: Column 1: In chunk 0: Invalid: List child array invalid: Invalid: Struct child array #1 has length smaller than expected for struct array (1192457 < 1192458)`

## Environment info
<!-- You can run the command `datasets-cli env` and copy-and-paste its output below. -->
- `datasets` version: datasets==1.18.4 pandas==1.3.5
- Platform: macOS 11.6 or CentOS Linux 7 (Core)
- Python version: Python 3.9.7
- PyArrow version: pyarrow==3.0.0