Datasets:

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mast-benchmark

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mast-2026-submissions

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Multilingual Agentic Search Track (MAST) 7

Error code:   StreamingRowsError
Exception:    CastError
Message:      Couldn't cast
bulk_receipt_id: string
stored: bool
team: string
team_slug: string
track: string
uploaded_at: timestamp[s]
system_type: string
submitter_email: string
items: list<item: struct<language: string, action: string, slot: int64, note: string, llm: string, retrieve (... 63 chars omitted)
  child 0, item: struct<language: string, action: string, slot: int64, note: string, llm: string, retriever: string,  (... 51 chars omitted)
      child 0, language: string
      child 1, action: string
      child 2, slot: int64
      child 3, note: string
      child 4, llm: string
      child 5, retriever: string
      child 6, receipt_id: string
      child 7, sha256: string
      child 8, replaced: null
validator: struct<name: string, version: string, resources_built_at: timestamp[s]>
  child 0, name: string
  child 1, version: string
  child 2, resources_built_at: timestamp[s]
report: struct<validator: struct<name: string, version: string, resources_built_at: timestamp[s]>, generated (... 431 chars omitted)
  child 0, validator: struct<name: string, version: string, resources_built_at: timestamp[s]>
      child 0, name: string
      child 1, version: string
      child 2, resources_built_at: timestamp[s]
  child 1, generated_at: timestamp[s]
  child 2, track: string
  child 3, source: string
  child 4, status: string
  child 5, files: list<item: struct<name: string, track: string, language: string, inferred: bool, llm: string, retrie (... 257 chars omitted)
      child 0, item: struct<name: string, track: string, language: string, inferred: bool, llm: string, retriever: string (... 245 chars omitted)
          child 0, name: string
          child 1, track: string
          child 2, language: string
          child 3, inferred: bool
          child 4, llm: string
          child 5, retriever: string
          child 6, present: bool
          child 7, records: int64
          child 8, errors: int64
          child 9, warnings: int64
          child 10, findings: list<item: struct<kind: string, level: string, message: string, count: int64, examples: list<item: s (... 69 chars omitted)
              child 0, item: struct<kind: string, level: string, message: string, count: int64, examples: list<item: string>, lin (... 57 chars omitted)
                  child 0, kind: string
                  child 1, level: string
                  child 2, message: string
                  child 3, count: int64
                  child 4, examples: list<item: string>
                      child 0, item: string
                  child 5, lines: list<item: int64>
                      child 0, item: int64
                  child 6, details: struct<declared: string>
                      child 0, declared: string
warnings: int64
sha256: string
receipt_id: string
warning_kinds: list<item: string>
  child 0, item: string
size_bytes: int64
original_filename: string
content_sha256: string
language: string
llm: string
retriever: string
records: int64
replaced: null
slot: int64
to
{'slot': Value('int64'), 'receipt_id': Value('string'), 'sha256': Value('string'), 'content_sha256': Value('string'), 'size_bytes': Value('int64'), 'records': Value('int64'), 'uploaded_at': Value('timestamp[s]'), 'original_filename': Value('string'), 'llm': Value('string'), 'retriever': Value('string'), 'system_type': Value('string'), 'submitter_email': Value('string'), 'warnings': Value('int64'), 'warning_kinds': List(Value('string')), 'replaced': Value('null'), 'team': Value('string'), 'team_slug': Value('string'), 'track': Value('string'), 'language': Value('string'), 'validator': {'name': Value('string'), 'version': Value('string'), 'resources_built_at': Value('timestamp[s]')}, 'report': {'validator': {'name': Value('string'), 'version': Value('string'), 'resources_built_at': Value('timestamp[s]')}, 'generated_at': Value('timestamp[s]'), 'track': Value('string'), 'source': Value('string'), 'status': Value('string'), 'files': List({'name': Value('string'), 'track': Value('string'), 'language': Value('string'), 'inferred': Value('bool'), 'llm': Value('string'), 'retriever': Value('string'), 'present': Value('bool'), 'records': Value('int64'), 'errors': Value('int64'), 'warnings': Value('int64'), 'findings': List({'kind': Value('string'), 'level': Value('string'), 'message': Value('string'), 'count': Value('int64'), 'examples': List(Value('string')), 'lines': List(Value('int64')), 'details': {'declared': Value('string')}})})}}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
                  return get_rows(
                      dataset=dataset,
                  ...<4 lines>...
                      column_names=column_names,
                  )
                File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
                  return func(*args, **kwargs)
                File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
                  rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
                File "/src/services/worker/src/worker/utils.py", line 483, in safe_iter
                  yield from ds.decode(False) if ds.features else ds
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2951, in __iter__
                  for key, example in ex_iterable:
                                      ^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2461, in __iter__
                  for key, pa_table in self._iter_arrow():
                                       ~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2486, in _iter_arrow
                  for key, pa_table in self.ex_iterable._iter_arrow():
                                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 547, in _iter_arrow
                  for key, pa_table in iterator:
                                       ^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 430, in _iter_arrow
                  for key, pa_table in self.generate_tables_fn(**gen_kwags):
                                       ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
                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
              bulk_receipt_id: string
              stored: bool
              team: string
              team_slug: string
              track: string
              uploaded_at: timestamp[s]
              system_type: string
              submitter_email: string
              items: list<item: struct<language: string, action: string, slot: int64, note: string, llm: string, retrieve (... 63 chars omitted)
                child 0, item: struct<language: string, action: string, slot: int64, note: string, llm: string, retriever: string,  (... 51 chars omitted)
                    child 0, language: string
                    child 1, action: string
                    child 2, slot: int64
                    child 3, note: string
                    child 4, llm: string
                    child 5, retriever: string
                    child 6, receipt_id: string
                    child 7, sha256: string
                    child 8, replaced: null
              validator: struct<name: string, version: string, resources_built_at: timestamp[s]>
                child 0, name: string
                child 1, version: string
                child 2, resources_built_at: timestamp[s]
              report: struct<validator: struct<name: string, version: string, resources_built_at: timestamp[s]>, generated (... 431 chars omitted)
                child 0, validator: struct<name: string, version: string, resources_built_at: timestamp[s]>
                    child 0, name: string
                    child 1, version: string
                    child 2, resources_built_at: timestamp[s]
                child 1, generated_at: timestamp[s]
                child 2, track: string
                child 3, source: string
                child 4, status: string
                child 5, files: list<item: struct<name: string, track: string, language: string, inferred: bool, llm: string, retrie (... 257 chars omitted)
                    child 0, item: struct<name: string, track: string, language: string, inferred: bool, llm: string, retriever: string (... 245 chars omitted)
                        child 0, name: string
                        child 1, track: string
                        child 2, language: string
                        child 3, inferred: bool
                        child 4, llm: string
                        child 5, retriever: string
                        child 6, present: bool
                        child 7, records: int64
                        child 8, errors: int64
                        child 9, warnings: int64
                        child 10, findings: list<item: struct<kind: string, level: string, message: string, count: int64, examples: list<item: s (... 69 chars omitted)
                            child 0, item: struct<kind: string, level: string, message: string, count: int64, examples: list<item: string>, lin (... 57 chars omitted)
                                child 0, kind: string
                                child 1, level: string
                                child 2, message: string
                                child 3, count: int64
                                child 4, examples: list<item: string>
                                    child 0, item: string
                                child 5, lines: list<item: int64>
                                    child 0, item: int64
                                child 6, details: struct<declared: string>
                                    child 0, declared: string
              warnings: int64
              sha256: string
              receipt_id: string
              warning_kinds: list<item: string>
                child 0, item: string
              size_bytes: int64
              original_filename: string
              content_sha256: string
              language: string
              llm: string
              retriever: string
              records: int64
              replaced: null
              slot: int64
              to
              {'slot': Value('int64'), 'receipt_id': Value('string'), 'sha256': Value('string'), 'content_sha256': Value('string'), 'size_bytes': Value('int64'), 'records': Value('int64'), 'uploaded_at': Value('timestamp[s]'), 'original_filename': Value('string'), 'llm': Value('string'), 'retriever': Value('string'), 'system_type': Value('string'), 'submitter_email': Value('string'), 'warnings': Value('int64'), 'warning_kinds': List(Value('string')), 'replaced': Value('null'), 'team': Value('string'), 'team_slug': Value('string'), 'track': Value('string'), 'language': Value('string'), 'validator': {'name': Value('string'), 'version': Value('string'), 'resources_built_at': Value('timestamp[s]')}, 'report': {'validator': {'name': Value('string'), 'version': Value('string'), 'resources_built_at': Value('timestamp[s]')}, 'generated_at': Value('timestamp[s]'), 'track': Value('string'), 'source': Value('string'), 'status': Value('string'), 'files': List({'name': Value('string'), 'track': Value('string'), 'language': Value('string'), 'inferred': Value('bool'), 'llm': Value('string'), 'retriever': Value('string'), 'present': Value('bool'), 'records': Value('int64'), 'errors': Value('int64'), 'warnings': Value('int64'), 'findings': List({'kind': Value('string'), 'level': Value('string'), 'message': Value('string'), 'count': Value('int64'), 'examples': List(Value('string')), 'lines': List(Value('int64')), 'details': {'declared': Value('string')}})})}}
              because column names don't match