Datasets:

---

yuzc19

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dclm-pool-400m-1x-student-cleaned-rescued

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Error code:   DatasetGenerationError
Exception:    CastError
Message:      Couldn't cast
text: string
metadata: struct<WARC-Type: string, WARC-Date: timestamp[s], WARC-Record-ID: string, Content-Length: string, C (... 180 chars omitted)
  child 0, WARC-Type: string
  child 1, WARC-Date: timestamp[s]
  child 2, WARC-Record-ID: string
  child 3, Content-Length: string
  child 4, Content-Type: string
  child 5, WARC-Warcinfo-ID: string
  child 6, WARC-Concurrent-To: string
  child 7, WARC-IP-Address: string
  child 8, WARC-Target-URI: string
  child 9, WARC-Payload-Digest: string
  child 10, WARC-Block-Digest: string
warcinfo: string
shard: string
num_sequences: int64
to
{'num_sequences': Value('int64'), 'shard': Value('string')}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1827, in _prepare_split_single
                  for key, table in generator:
                                    ^^^^^^^^^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 613, in wrapped
                  for item in generator(*args, **kwargs):
                              ~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
                  self._cast_table(pa_table, json_field_paths=json_field_paths),
                  ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
                  pa_table = table_cast(pa_table, self.info.features.arrow_schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2306, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              text: string
              metadata: struct<WARC-Type: string, WARC-Date: timestamp[s], WARC-Record-ID: string, Content-Length: string, C (... 180 chars omitted)
                child 0, WARC-Type: string
                child 1, WARC-Date: timestamp[s]
                child 2, WARC-Record-ID: string
                child 3, Content-Length: string
                child 4, Content-Type: string
                child 5, WARC-Warcinfo-ID: string
                child 6, WARC-Concurrent-To: string
                child 7, WARC-IP-Address: string
                child 8, WARC-Target-URI: string
                child 9, WARC-Payload-Digest: string
                child 10, WARC-Block-Digest: string
              warcinfo: string
              shard: string
              num_sequences: int64
              to
              {'num_sequences': Value('int64'), 'shard': Value('string')}
              because column names don't match
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1369, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1694, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1880, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset