DOC: Make errors and warnings of the doc build more visible
For my understanding, there are two main things that make problems in the doc build difficult to see:
- The warnings in the documentation build do not fail the build
- The documentation build does not make the CI fail and turn red

I think what we should do is the next:

- [ ] Fix remaining warnings during the doc build
- [ ] Activate the `--warnings-are-errors` option
- [ ] Make the ipython directive fail the build if there are errors or warnings, but continue the build
- [ ] Move the doc build out of the allowed failures build

Does this make sense?

xref: #22743, #24650
cc: @jorisvandenbossche @TomAugspurger @jreback 

Current warnings:
<details>
```
>>>-------------------------------------------------------------------------
Warning in /home/mgarcia/src/pandas/doc/source/indexing.rst at block ending on line 894
Specify :okwarning: as an option in the ipython:: block to suppress this message
----------------------------------------------------------------------------
/home/mgarcia/miniconda3/envs/pandas-dev/bin/sphinx-build:1: FutureWarning: Addition/subtraction of integers and integer-arrays to Timestamp is deprecated, will be removed in a future version.  Instead of adding/subtracting `n`, use `n * self.freq`
  #!/home/mgarcia/miniconda3/envs/pandas-dev/bin/python
<<<-------------------------------------------------------------------------
/home/mgarcia/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/IPython/sphinxext/ipython_directive.py:1020: UserWarning: Code input with no code at /home/mgarcia/src/pandas/doc/source/advanced.rst, line 724
  warnings.warn(message)


>>>-------------------------------------------------------------------------
Warning in /home/mgarcia/src/pandas/doc/source/io.rst at block ending on line 4736
Specify :okwarning: as an option in the ipython:: block to suppress this message
----------------------------------------------------------------------------
/home/mgarcia/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/pyarrow/pandas_compat.py:114: FutureWarning: A future version of pandas will default to `skipna=True`. To silence this warning, pass `skipna=True|False` explicitly.
  result = infer_dtype(pandas_collection)
<<<-------------------------------------------------------------------------


>>>-------------------------------------------------------------------------
Exception in /home/mgarcia/src/pandas/doc/source/io.rst at block ending on line 4736
Specify :okexcept: as an option in the ipython:: block to suppress this message
---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
<ipython-input-527-8ba55b61d48c> in <module>
----> 1 df.to_parquet('example_fp.parquet', engine='fastparquet')

~/src/pandas/pandas/core/frame.py in to_parquet(self, fname, engine, compression, index, partition_cols, **kwargs)
   2190         to_parquet(self, fname, engine,
   2191                    compression=compression, index=index,
-> 2192                    partition_cols=partition_cols, **kwargs)
   2193 
   2194     @Substitution(header='Whether to print column labels, default True')

~/src/pandas/pandas/io/parquet.py in to_parquet(df, path, engine, compression, index, partition_cols, **kwargs)
    250     impl = get_engine(engine)
    251     return impl.write(df, path, compression=compression, index=index,
--> 252                       partition_cols=partition_cols, **kwargs)
    253 
    254 

~/src/pandas/pandas/io/parquet.py in write(self, df, path, compression, index, partition_cols, **kwargs)
    193             self.api.write(path, df, compression=compression,
    194                            write_index=index, partition_on=partition_cols,
--> 195                            **kwargs)
    196 
    197     def read(self, path, columns=None, **kwargs):

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/writer.py in write(filename, data, row_group_offsets, compression, file_scheme, open_with, mkdirs, has_nulls, write_index, partition_on, fixed_text, append, object_encoding, times)
    851     if file_scheme == 'simple':
    852         write_simple(filename, data, fmd, row_group_offsets,
--> 853                      compression, open_with, has_nulls, append)
    854     elif file_scheme in ['hive', 'drill']:
    855         if append:

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/writer.py in write_simple(fn, data, fmd, row_group_offsets, compression, open_with, has_nulls, append)
    720                    else None)
    721             rg = make_row_group(f, data[start:end], fmd.schema,
--> 722                                 compression=compression)
    723             if rg is not None:
    724                 fmd.row_groups.append(rg)

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/writer.py in make_row_group(f, data, schema, compression)
    617                 comp = compression
    618             chunk = write_column(f, data[column.name], column,
--> 619                                  compression=comp)
    620             rg.columns.append(chunk)
    621     rg.total_byte_size = sum([c.meta_data.total_uncompressed_size for c in

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/writer.py in write_column(f, data, selement, compression)
    534 
    535     if compression:
--> 536         bdata = compress_data(bdata, compression)
    537         l1 = len(bdata)
    538     else:

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/compression.py in compress_data(data, compression)
    129     if algorithm.upper() not in compressions:
    130         raise RuntimeError("Compression '%s' not available.  Options: %s" %
--> 131                 (algorithm, sorted(compressions)))
    132     if args is None:
    133         return compressions[algorithm.upper()](data)

RuntimeError: Compression 'snappy' not available.  Options: ['GZIP', 'UNCOMPRESSED']
<<<-------------------------------------------------------------------------



>>>-------------------------------------------------------------------------
Exception in /home/mgarcia/src/pandas/doc/source/io.rst at block ending on line None
Specify :okexcept: as an option in the ipython:: block to suppress this message
---------------------------------------------------------------------------
NotADirectoryError                        Traceback (most recent call last)
~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/api.py in __init__(self, fn, verify, open_with, root, sep)
    109                 self.fn = fn2
--> 110                 with open_with(fn2, 'rb') as f:
    111                     self._parse_header(f, verify)

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/util.py in default_open(f, mode)
     37 def default_open(f, mode='rb'):
---> 38     return open(f, mode)
     39 

NotADirectoryError: [Errno 20] Not a directory: 'example_fp.parquet/_metadata'

During handling of the above exception, another exception occurred:

OSError                                   Traceback (most recent call last)
<ipython-input-528-d4bce7d5df53> in <module>
----> 1 result = pd.read_parquet('example_fp.parquet', engine='fastparquet')

~/src/pandas/pandas/io/parquet.py in read_parquet(path, engine, columns, **kwargs)
    280 
    281     impl = get_engine(engine)
--> 282     return impl.read(path, columns=columns, **kwargs)

~/src/pandas/pandas/io/parquet.py in read(self, path, columns, **kwargs)
    207         else:
    208             path, _, _, _ = get_filepath_or_buffer(path)
--> 209             parquet_file = self.api.ParquetFile(path)
    210 
    211         return parquet_file.to_pandas(columns=columns, **kwargs)

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/api.py in __init__(self, fn, verify, open_with, root, sep)
    114                 self.fn = join_path(fn)
    115                 with open_with(fn, 'rb') as f:
--> 116                     self._parse_header(f, verify)
    117         self.open = open_with
    118         self.sep = sep

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/api.py in _parse_header(self, f, verify)
    123             if verify:
    124                 assert f.read(4) == b'PAR1'
--> 125             f.seek(-8, 2)
    126             head_size = struct.unpack('<i', f.read(4))[0]
    127             if verify:

OSError: [Errno 22] Invalid argument
<<<-------------------------------------------------------------------------



>>>-------------------------------------------------------------------------
Exception in /home/mgarcia/src/pandas/doc/source/io.rst at block ending on line 4756
Specify :okexcept: as an option in the ipython:: block to suppress this message
---------------------------------------------------------------------------
NotADirectoryError                        Traceback (most recent call last)
~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/api.py in __init__(self, fn, verify, open_with, root, sep)
    109                 self.fn = fn2
--> 110                 with open_with(fn2, 'rb') as f:
    111                     self._parse_header(f, verify)

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/util.py in default_open(f, mode)
     37 def default_open(f, mode='rb'):
---> 38     return open(f, mode)
     39 

NotADirectoryError: [Errno 20] Not a directory: 'example_fp.parquet/_metadata'

During handling of the above exception, another exception occurred:

OSError                                   Traceback (most recent call last)
<ipython-input-531-e4f7add80b89> in <module>
      1 result = pd.read_parquet('example_fp.parquet',
----> 2                          engine='fastparquet', columns=['a', 'b'])

~/src/pandas/pandas/io/parquet.py in read_parquet(path, engine, columns, **kwargs)
    280 
    281     impl = get_engine(engine)
--> 282     return impl.read(path, columns=columns, **kwargs)

~/src/pandas/pandas/io/parquet.py in read(self, path, columns, **kwargs)
    207         else:
    208             path, _, _, _ = get_filepath_or_buffer(path)
--> 209             parquet_file = self.api.ParquetFile(path)
    210 
    211         return parquet_file.to_pandas(columns=columns, **kwargs)

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/api.py in __init__(self, fn, verify, open_with, root, sep)
    114                 self.fn = join_path(fn)
    115                 with open_with(fn, 'rb') as f:
--> 116                     self._parse_header(f, verify)
    117         self.open = open_with
    118         self.sep = sep

~/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/fastparquet/api.py in _parse_header(self, f, verify)
    123             if verify:
    124                 assert f.read(4) == b'PAR1'
--> 125             f.seek(-8, 2)
    126             head_size = struct.unpack('<i', f.read(4))[0]
    127             if verify:

OSError: [Errno 22] Invalid argument
<<<-------------------------------------------------------------------------



>>>-------------------------------------------------------------------------
Warning in /home/mgarcia/src/pandas/doc/source/io.rst at block ending on line 4774
Specify :okwarning: as an option in the ipython:: block to suppress this message
----------------------------------------------------------------------------
/home/mgarcia/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/pyarrow/pandas_compat.py:114: FutureWarning: A future version of pandas will default to `skipna=True`. To silence this warning, pass `skipna=True|False` explicitly.
  result = infer_dtype(pandas_collection)
<<<-------------------------------------------------------------------------
/home/mgarcia/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/IPython/sphinxext/ipython_directive.py:1020: UserWarning: Code input with no code at /home/mgarcia/src/pandas/doc/source/cookbook.rst, line 1324
  warnings.warn(message)
/home/mgarcia/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/IPython/sphinxext/ipython_directive.py:1020: UserWarning: Code input with no code at /home/mgarcia/src/pandas/doc/source/whatsnew/v0.17.0.rst, line None
  warnings.warn(message)


>>>-------------------------------------------------------------------------
Exception in /home/mgarcia/src/pandas/doc/source/whatsnew/v0.17.0.rst at block ending on line 1006
Specify :okexcept: as an option in the ipython:: block to suppress this message
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-91-feee93089366> in <module>
----> 1 df = DataFrame(np.random.randn(5, 2),
      2                columns=list('AB'),
      3                index=date_range('20130101', periods=5))

NameError: name 'DataFrame' is not defined
<<<-------------------------------------------------------------------------



>>>-------------------------------------------------------------------------
Exception in /home/mgarcia/src/pandas/doc/source/whatsnew/v0.17.0.rst at block ending on line 1029
Specify :okexcept: as an option in the ipython:: block to suppress this message
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-93-d7d99ab4a8cb> in <module>
----> 1 df.add(df.A, axis='index')

~/src/pandas/pandas/core/generic.py in __getattr__(self, name)
   5055             if self._info_axis._can_hold_identifiers_and_holds_name(name):
   5056                 return self[name]
-> 5057             return object.__getattribute__(self, name)
   5058 
   5059     def __setattr__(self, name, value):

AttributeError: 'DataFrame' object has no attribute 'A'
<<<-------------------------------------------------------------------------

/home/mgarcia/miniconda3/envs/pandas-dev/lib/python3.7/site-packages/IPython/sphinxext/ipython_directive.py:1020: UserWarning: Code input with no code at /home/mgarcia/src/pandas/doc/source/whatsnew/v0.17.1.rst, line None
  warnings.warn(message)
/home/mgarcia/src/pandas/pandas/core/accessor.py:docstring of pandas.DatetimeIndex.ceil:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/accessor.py:docstring of pandas.DatetimeIndex.floor:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/accessor.py:docstring of pandas.DatetimeIndex.round:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/accessor.py:docstring of pandas.DatetimeIndex.tz_localize:36: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/dtypes/dtypes.py:docstring of pandas.DatetimeTZDtype:36: WARNING: toctree references unknown document 'api/generated/pandas.DatetimeTZDtype.type'
/home/mgarcia/src/pandas/pandas/core/window.py:docstring of pandas.core.window.Expanding.apply:26: WARNING: Unexpected section title.

Returns
-------
/home/mgarcia/src/pandas/pandas/core/window.py:docstring of pandas.core.window.Rolling.apply:26: WARNING: Unexpected section title.

Returns
-------
/home/mgarcia/src/pandas/pandas/core/arrays/datetimelike.py:docstring of pandas.arrays.TimedeltaArray.ceil:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/datetimelike.py:docstring of pandas.arrays.TimedeltaArray.floor:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/datetimelike.py:docstring of pandas.arrays.TimedeltaArray.round:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/datetimes.py:docstring of pandas.arrays.DatetimeArray.tz_localize:36: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/io/parsers.py:docstring of pandas.read_table:5: WARNING: Explicit markup ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/datetimelike.py:docstring of pandas.arrays.DatetimeArray.ceil:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/datetimelike.py:docstring of pandas.arrays.DatetimeArray.floor:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/datetimelike.py:docstring of pandas.arrays.DatetimeArray.round:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/integer.py:docstring of pandas.UInt32Dtype:34: WARNING: toctree references unknown document 'api/generated/pandas.UInt32Dtype.type'
/home/mgarcia/src/pandas/pandas/core/arrays/integer.py:docstring of pandas.UInt64Dtype:34: WARNING: toctree references unknown document 'api/generated/pandas.UInt64Dtype.type'
/home/mgarcia/src/pandas/pandas/core/arrays/integer.py:docstring of pandas.UInt8Dtype:34: WARNING: toctree references unknown document 'api/generated/pandas.UInt8Dtype.type'
docstring of pandas.Timestamp.round:20: WARNING: Block quote ends without a blank line; unexpected unindent.
docstring of pandas.Timestamp.tz_localize:27: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/integer.py:docstring of pandas.UInt16Dtype:34: WARNING: toctree references unknown document 'api/generated/pandas.UInt16Dtype.type'
/home/mgarcia/src/pandas/pandas/core/arrays/datetimelike.py:docstring of pandas.TimedeltaIndex.ceil:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/datetimelike.py:docstring of pandas.TimedeltaIndex.floor:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/arrays/datetimelike.py:docstring of pandas.TimedeltaIndex.round:29: WARNING: Block quote ends without a blank line; unexpected unindent.
docstring of pandas.Timestamp.ceil:20: WARNING: Block quote ends without a blank line; unexpected unindent.
docstring of pandas.Timestamp.floor:20: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/accessor.py:docstring of pandas.Series.dt.ceil:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/accessor.py:docstring of pandas.Series.dt.floor:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/accessor.py:docstring of pandas.Series.dt.round:29: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/accessor.py:docstring of pandas.Series.dt.tz_localize:36: WARNING: Block quote ends without a blank line; unexpected unindent.
/home/mgarcia/src/pandas/pandas/core/dtypes/dtypes.py:docstring of pandas.PeriodDtype:33: WARNING: toctree references unknown document 'api/generated/pandas.PeriodDtype.type'
/home/mgarcia/src/pandas/pandas/core/series.py:docstring of pandas.Series:96: WARNING: toctree references unknown document 'api/generated/pandas.Series.sparse'
/home/mgarcia/src/pandas/pandas/core/arrays/integer.py:docstring of pandas.Int16Dtype:34: WARNING: toctree references unknown document 'api/generated/pandas.Int16Dtype.type'
/home/mgarcia/src/pandas/pandas/core/arrays/integer.py:docstring of pandas.Int32Dtype:34: WARNING: toctree references unknown document 'api/generated/pandas.Int32Dtype.type'
/home/mgarcia/src/pandas/pandas/core/arrays/integer.py:docstring of pandas.Int64Dtype:34: WARNING: toctree references unknown document 'api/generated/pandas.Int64Dtype.type'
/home/mgarcia/src/pandas/pandas/core/arrays/integer.py:docstring of pandas.Int8Dtype:34: WARNING: toctree references unknown document 'api/generated/pandas.Int8Dtype.type'
/home/mgarcia/src/pandas/pandas/core/indexes/interval.py:docstring of pandas.IntervalIndex:103: WARNING: toctree references unknown document 'api/generated/pandas.IntervalIndex.to_tuples'
/home/mgarcia/src/pandas/pandas/core/generic.py:docstring of pandas.DataFrame.to_sql:1: WARNING: duplicate object description of pandas.DataFrame.to_sql, other instance in /home/mgarcia/src/pandas/doc/source/api/generated/pandas.DataFrame.to_sql.rst, use :noindex: for one of them
/home/mgarcia/src/pandas/pandas/core/generic.py:docstring of pandas.DataFrame.to_sql:85: WARNING: duplicate citation R689dfd12abe5-1, other instance in /home/mgarcia/src/pandas/doc/source/api/generated/pandas.DataFrame.to_sql.rst
/home/mgarcia/src/pandas/pandas/core/generic.py:docstring of pandas.DataFrame.to_sql:86: WARNING: duplicate citation R689dfd12abe5-2, other instance in /home/mgarcia/src/pandas/doc/source/api/generated/pandas.DataFrame.to_sql.rst
/home/mgarcia/src/pandas/doc/source/missing_data.rst:483: WARNING: Title level inconsistent:

Interpolation Limits
^^^^^^^^^^^^^^^^^^^^
/home/mgarcia/src/pandas/pandas/io/sql.py:docstring of pandas.read_sql_table:1: WARNING: duplicate object description of pandas.read_sql_table, other instance in /home/mgarcia/src/pandas/doc/source/generated/pandas.read_sql_table.rst, use :noindex: for one of them
looking for now-outdated files... none found
pickling environment... done
checking consistency... /home/mgarcia/src/pandas/doc/source/api/generated/pandas.DataFrame.timetuple.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.base.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.isbuiltin.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.isnative.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.itemsize.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.kind.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.na_value.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.num.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.shape.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.str.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.DatetimeTZDtype.subdtype.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int16Dtype.base.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int16Dtype.is_signed_integer.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int16Dtype.is_unsigned_integer.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int16Dtype.kind.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int16Dtype.na_value.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int16Dtype.name.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int32Dtype.base.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int32Dtype.is_signed_integer.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int32Dtype.is_unsigned_integer.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int32Dtype.kind.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int32Dtype.na_value.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int32Dtype.name.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int64Dtype.base.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int64Dtype.is_signed_integer.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int64Dtype.is_unsigned_integer.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int64Dtype.kind.rst: WARNING: document isn't included in any toctree
/home/mgarcia/src/pandas/doc/source/api/generated/pandas.Int64Dtype.na_value.rst: WARNING: document isn't included in any toctree
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/home/mgarcia/src/pandas/doc/source/whatsnew/v0.20.0.rst:416: WARNING: undefined label: indexing.intervallindex (if the link has no caption the label must precede a section header)
writing output... [100%] whatsnew/v0.5.0 .. whatsnew/v0.9.1                                                                                                                                                                                   
waiting for workers...
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b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.UInt64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.PeriodDtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.PeriodDtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.PeriodDtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.PeriodDtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.PeriodDtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.PeriodDtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.PeriodDtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.PeriodDtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Series.sparse'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.IntervalIndex.to_tuples'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int8Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int8Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int8Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int8Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int8Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int8Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int8Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int16Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int16Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int16Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int16Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int16Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int16Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int16Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int32Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int64Dtype.type'
b'<partial node>':: WARNING: toctree contains reference to nonexisting document 'api/generated/pandas.Int64Dtype.type'
```
</details>