2025-09-08T02:43:04,070 Created temporary directory: /tmp/pip-build-tracker-nwdkcnvm
2025-09-08T02:43:04,071 Initialized build tracking at /tmp/pip-build-tracker-nwdkcnvm
2025-09-08T02:43:04,071 Created build tracker: /tmp/pip-build-tracker-nwdkcnvm
2025-09-08T02:43:04,071 Entered build tracker: /tmp/pip-build-tracker-nwdkcnvm
2025-09-08T02:43:04,071 Created temporary directory: /tmp/pip-wheel-mi45tmyb
2025-09-08T02:43:04,074 Created temporary directory: /tmp/pip-ephem-wheel-cache-2qwphxe3
2025-09-08T02:43:04,132 Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
2025-09-08T02:43:04,134 2 location(s) to search for versions of bob-learn-linear:
2025-09-08T02:43:04,134 * https://pypi.org/simple/bob-learn-linear/
2025-09-08T02:43:04,134 * https://www.piwheels.org/simple/bob-learn-linear/
2025-09-08T02:43:04,134 Fetching project page and analyzing links: https://pypi.org/simple/bob-learn-linear/
2025-09-08T02:43:04,135 Getting page https://pypi.org/simple/bob-learn-linear/
2025-09-08T02:43:04,136 Found index url https://pypi.org/simple/
2025-09-08T02:43:04,205 Fetched page https://pypi.org/simple/bob-learn-linear/ as application/vnd.pypi.simple.v1+json
2025-09-08T02:43:04,208   Found link https://files.pythonhosted.org/packages/d3/fd/f239f6d7c4ef46396263ab96250178a24a91bb71cde71256cb52342bcf46/bob.learn.linear-2.0.0b1.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.0b1
2025-09-08T02:43:04,208   Found link https://files.pythonhosted.org/packages/9c/e8/8f96385860ca72739b571f1257fad619f69d1b51f548e29a04d1797d565e/bob.learn.linear-2.0.0.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.0
2025-09-08T02:43:04,208   Found link https://files.pythonhosted.org/packages/c7/bb/723169d14bcb35820f8d2803f1f81e4e5a67d7680fa4c286b6f3c58147ea/bob.learn.linear-2.0.1.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.1
2025-09-08T02:43:04,208   Found link https://files.pythonhosted.org/packages/8f/8b/03b3ac6b21dd228a190d8c69f4bc0668a415166ab85037f34c033e1ac4ac/bob.learn.linear-2.0.2.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.2
2025-09-08T02:43:04,209   Found link https://files.pythonhosted.org/packages/4c/83/34142241685444097c7e44ecfb681dcf927175862913cbf07a04aea9b721/bob.learn.linear-2.0.3.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.3
2025-09-08T02:43:04,209   Found link https://files.pythonhosted.org/packages/4b/32/2e366c4e58eede8ff647b3e7e61e87a5d40966bb87a933aadf336477906e/bob.learn.linear-2.0.4.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.4
2025-09-08T02:43:04,209   Found link https://files.pythonhosted.org/packages/80/df/b0ab7adfb5fd073543d7eddf470120ed2a9b5da5191a9562474197cbd275/bob.learn.linear-2.0.5.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.5
2025-09-08T02:43:04,209   Found link https://files.pythonhosted.org/packages/30/fd/590932da3b0f0e6c2dc0080f0e4199c8c81f60f81406567e51c526c0d4f0/bob.learn.linear-2.0.6.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.6
2025-09-08T02:43:04,209   Found link https://files.pythonhosted.org/packages/8d/cf/3970ceb4bd8f85835c58b7b522a974e241dca3229207b98c0846d0608ead/bob.learn.linear-2.0.7.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.7
2025-09-08T02:43:04,210   Found link https://files.pythonhosted.org/packages/3d/b7/a5bd71b62fa4c6a54ca0f63198fac10dbace5dbf1c6c842ee1e96a622582/bob.learn.linear-2.0.8.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.8
2025-09-08T02:43:04,210   Found link https://files.pythonhosted.org/packages/3c/4a/d1c8abcee0efeecd445319451832d19a1055bd04a3cc10f52dfe9f527ecd/bob.learn.linear-2.0.9.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.9
2025-09-08T02:43:04,210   Found link https://files.pythonhosted.org/packages/0d/c2/9114cbbbe584befd93b4df53a3a3c01a17563315fac06b5b4869d93593c0/bob.learn.linear-2.0.10.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.0.10
2025-09-08T02:43:04,210   Found link https://files.pythonhosted.org/packages/52/3f/65de3ef958b1aafc410c76cda8b5b93d8a1f879245ec23438cb88fcc5868/bob.learn.linear-2.1.0.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.0
2025-09-08T02:43:04,210   Found link https://files.pythonhosted.org/packages/c6/98/cc72e8ed062812ed7356504a530dad9befee47de236f73fdd9ee4eb65660/bob.learn.linear-2.1.1.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.1
2025-09-08T02:43:04,211   Found link https://files.pythonhosted.org/packages/ca/8b/5f3b84774ec6acce79b7bf363969012e9ab4c36b1ef934fdd77f5b53d205/bob.learn.linear-2.1.2.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.2
2025-09-08T02:43:04,211   Found link https://files.pythonhosted.org/packages/c9/70/38c1736d20fca8ad5af07fc7eee703aad7ec9a399ba08189548c83b6f5c3/bob.learn.linear-2.1.3.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.3
2025-09-08T02:43:04,211   Found link https://files.pythonhosted.org/packages/54/0f/b16498ff9992b5357b27f06fb005bacaab1baed3d195e73cd34622be2f87/bob.learn.linear-2.1.4.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.4
2025-09-08T02:43:04,211   Found link https://files.pythonhosted.org/packages/b1/8d/1ef799af341558e8292a6d43b38eae690f9502b66760e5c43a82bad5054c/bob.learn.linear-2.1.5.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.5
2025-09-08T02:43:04,211   Found link https://files.pythonhosted.org/packages/a0/6f/2c93292de1177b102752136c418f97671d3905350a004c14acc67f19be77/bob.learn.linear-2.1.6.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.6
2025-09-08T02:43:04,212   Found link https://files.pythonhosted.org/packages/d9/1d/8182ed1bca1ab60ae930d0c08c5211ce3b73790b301b764f6b447defc1b2/bob.learn.linear-2.1.7.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.7
2025-09-08T02:43:04,212   Found link https://files.pythonhosted.org/packages/27/a9/0c361bdd9abc3ce838542f588c0641cc7523f6b920928984125334226e8c/bob.learn.linear-2.1.8.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.8
2025-09-08T02:43:04,212   Found link https://files.pythonhosted.org/packages/79/ed/aefbe4ef96cd8368792f633b35891570e299e927ed0458a98e64a4e03407/bob.learn.linear-2.1.9.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.9
2025-09-08T02:43:04,212   Found link https://files.pythonhosted.org/packages/14/a5/a7c8d0c9b6f33debf34a16709aa30bc02c20f2d1b3f7c97f83c66b206948/bob.learn.linear-2.1.10.zip (from https://pypi.org/simple/bob-learn-linear/), version: 2.1.10
2025-09-08T02:43:04,213 Fetching project page and analyzing links: https://www.piwheels.org/simple/bob-learn-linear/
2025-09-08T02:43:04,213 Getting page https://www.piwheels.org/simple/bob-learn-linear/
2025-09-08T02:43:04,214 Found index url https://www.piwheels.org/simple/
2025-09-08T02:43:04,318 Fetched page https://www.piwheels.org/simple/bob-learn-linear/ as text/html
2025-09-08T02:43:04,319 Skipping link: not a file: https://www.piwheels.org/simple/bob-learn-linear/
2025-09-08T02:43:04,319 Skipping link: not a file: https://pypi.org/simple/bob-learn-linear/
2025-09-08T02:43:04,346 Given no hashes to check 1 links for project 'bob-learn-linear': discarding no candidates
2025-09-08T02:43:04,347 Collecting bob-learn-linear==2.0.5
2025-09-08T02:43:04,349   Created temporary directory: /tmp/pip-unpack-ub_acppt
2025-09-08T02:43:04,486   Downloading bob.learn.linear-2.0.5.zip (144 kB)
2025-09-08T02:43:04,536   Added bob-learn-linear==2.0.5 from https://files.pythonhosted.org/packages/80/df/b0ab7adfb5fd073543d7eddf470120ed2a9b5da5191a9562474197cbd275/bob.learn.linear-2.0.5.zip to build tracker '/tmp/pip-build-tracker-nwdkcnvm'
2025-09-08T02:43:04,537   Running setup.py (path:/tmp/pip-wheel-mi45tmyb/bob-learn-linear_4ec86d01c13a4b859ef74bf32fb7d443/setup.py) egg_info for package bob-learn-linear
2025-09-08T02:43:04,538   Created temporary directory: /tmp/pip-pip-egg-info-sey_r2e5
2025-09-08T02:43:04,538   Preparing metadata (setup.py): started
2025-09-08T02:43:04,539   Running command python setup.py egg_info
2025-09-08T02:43:05,547   /tmp/pip-wheel-mi45tmyb/bob-learn-linear_4ec86d01c13a4b859ef74bf32fb7d443/bob/__init__.py:2: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
2025-09-08T02:43:05,547     __import__('pkg_resources').declare_namespace(__name__)
2025-09-08T02:43:05,892   Traceback (most recent call last):
2025-09-08T02:43:05,894     File "<string>", line 2, in <module>
2025-09-08T02:43:05,894       exec(compile('''
2025-09-08T02:43:05,894       ~~~~^^^^^^^^^^^^
2025-09-08T02:43:05,894       # This is <pip-setuptools-caller> -- a caller that pip uses to run setup.py
2025-09-08T02:43:05,894       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:05,895       ...<32 lines>...
2025-09-08T02:43:05,895       exec(compile(setup_py_code, filename, "exec"))
2025-09-08T02:43:05,895       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:05,895       ''' % ('/tmp/pip-wheel-mi45tmyb/bob-learn-linear_4ec86d01c13a4b859ef74bf32fb7d443/setup.py',), "<pip-setuptools-caller>", "exec"))
2025-09-08T02:43:05,895       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:05,895     File "<pip-setuptools-caller>", line 35, in <module>
2025-09-08T02:43:05,895     File "/tmp/pip-wheel-mi45tmyb/bob-learn-linear_4ec86d01c13a4b859ef74bf32fb7d443/setup.py", line 10, in <module>
2025-09-08T02:43:05,895       from bob.blitz.extension import Extension, Library, build_ext
2025-09-08T02:43:05,896   ModuleNotFoundError: No module named 'bob.blitz'
2025-09-08T02:43:06,013   ERROR: python setup.py egg_info exited with 1
2025-09-08T02:43:06,026   [bold magenta]full command[/]: [blue]/usr/bin/python3 -c '
2025-09-08T02:43:06,026   exec(compile('"'"''"'"''"'"'
2025-09-08T02:43:06,026   # This is <pip-setuptools-caller> -- a caller that pip uses to run setup.py
2025-09-08T02:43:06,026   #
2025-09-08T02:43:06,026   # - It imports setuptools before invoking setup.py, to enable projects that directly
2025-09-08T02:43:06,026   #   import from `distutils.core` to work with newer packaging standards.
2025-09-08T02:43:06,026   # - It provides a clear error message when setuptools is not installed.
2025-09-08T02:43:06,026   # - It sets `sys.argv[0]` to the underlying `setup.py`, when invoking `setup.py` so
2025-09-08T02:43:06,026   #   setuptools doesn'"'"'t think the script is `-c`. This avoids the following warning:
2025-09-08T02:43:06,026   #     manifest_maker: standard file '"'"'-c'"'"' not found".
2025-09-08T02:43:06,026   # - It generates a shim setup.py, for handling setup.cfg-only projects.
2025-09-08T02:43:06,026   import os, sys, tokenize, traceback
2025-09-08T02:43:06,026   
2025-09-08T02:43:06,026   try:
2025-09-08T02:43:06,026       import setuptools
2025-09-08T02:43:06,026   except ImportError:
2025-09-08T02:43:06,026       print(
2025-09-08T02:43:06,026           "ERROR: Can not execute `setup.py` since setuptools failed to import in "
2025-09-08T02:43:06,026           "the build environment with exception:",
2025-09-08T02:43:06,026           file=sys.stderr,
2025-09-08T02:43:06,026       )
2025-09-08T02:43:06,026       traceback.print_exc()
2025-09-08T02:43:06,026       sys.exit(1)
2025-09-08T02:43:06,026   
2025-09-08T02:43:06,026   __file__ = %r
2025-09-08T02:43:06,026   sys.argv[0] = __file__
2025-09-08T02:43:06,026   
2025-09-08T02:43:06,026   if os.path.exists(__file__):
2025-09-08T02:43:06,026       filename = __file__
2025-09-08T02:43:06,026       with tokenize.open(__file__) as f:
2025-09-08T02:43:06,026           setup_py_code = f.read()
2025-09-08T02:43:06,026   else:
2025-09-08T02:43:06,026       filename = "<auto-generated setuptools caller>"
2025-09-08T02:43:06,026       setup_py_code = "from setuptools import setup; setup()"
2025-09-08T02:43:06,026   
2025-09-08T02:43:06,026   exec(compile(setup_py_code, filename, "exec"))
2025-09-08T02:43:06,026   '"'"''"'"''"'"' % ('"'"'/tmp/pip-wheel-mi45tmyb/bob-learn-linear_4ec86d01c13a4b859ef74bf32fb7d443/setup.py'"'"',), "<pip-setuptools-caller>", "exec"))' egg_info --egg-base /tmp/pip-pip-egg-info-sey_r2e5[/]
2025-09-08T02:43:06,026   [bold magenta]cwd[/]: /tmp/pip-wheel-mi45tmyb/bob-learn-linear_4ec86d01c13a4b859ef74bf32fb7d443/
2025-09-08T02:43:06,026   Preparing metadata (setup.py): finished with status 'error'
2025-09-08T02:43:06,027 ERROR: metadata generation failed
2025-09-08T02:43:06,033 Exception information:
2025-09-08T02:43:06,033 Traceback (most recent call last):
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/operations/build/metadata_legacy.py", line 63, in generate_metadata
2025-09-08T02:43:06,033     call_subprocess(
2025-09-08T02:43:06,033     ~~~~~~~~~~~~~~~^
2025-09-08T02:43:06,033         args,
2025-09-08T02:43:06,033         ^^^^^
2025-09-08T02:43:06,033     ...<2 lines>...
2025-09-08T02:43:06,033         spinner=spinner,
2025-09-08T02:43:06,033         ^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033     )
2025-09-08T02:43:06,033     ^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/utils/subprocess.py", line 209, in call_subprocess
2025-09-08T02:43:06,033     raise error
2025-09-08T02:43:06,033 pip._internal.exceptions.InstallationSubprocessError: python setup.py egg_info exited with 1
2025-09-08T02:43:06,033 
2025-09-08T02:43:06,033 The above exception was the direct cause of the following exception:
2025-09-08T02:43:06,033 
2025-09-08T02:43:06,033 Traceback (most recent call last):
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/cli/base_command.py", line 105, in _run_wrapper
2025-09-08T02:43:06,033     status = _inner_run()
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/cli/base_command.py", line 96, in _inner_run
2025-09-08T02:43:06,033     return self.run(options, args)
2025-09-08T02:43:06,033            ~~~~~~~~^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/cli/req_command.py", line 68, in wrapper
2025-09-08T02:43:06,033     return func(self, options, args)
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/commands/wheel.py", line 147, in run
2025-09-08T02:43:06,033     requirement_set = resolver.resolve(reqs, check_supported_wheels=True)
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 96, in resolve
2025-09-08T02:43:06,033     result = self._result = resolver.resolve(
2025-09-08T02:43:06,033                             ~~~~~~~~~~~~~~~~^
2025-09-08T02:43:06,033         collected.requirements, max_rounds=limit_how_complex_resolution_can_be
2025-09-08T02:43:06,033         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033     )
2025-09-08T02:43:06,033     ^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_vendor/resolvelib/resolvers/resolution.py", line 515, in resolve
2025-09-08T02:43:06,033     state = resolution.resolve(requirements, max_rounds=max_rounds)
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_vendor/resolvelib/resolvers/resolution.py", line 388, in resolve
2025-09-08T02:43:06,033     self._add_to_criteria(self.state.criteria, r, parent=None)
2025-09-08T02:43:06,033     ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_vendor/resolvelib/resolvers/resolution.py", line 141, in _add_to_criteria
2025-09-08T02:43:06,033     if not criterion.candidates:
2025-09-08T02:43:06,033            ^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_vendor/resolvelib/structs.py", line 194, in __bool__
2025-09-08T02:43:06,033     return bool(self._sequence)
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 163, in __bool__
2025-09-08T02:43:06,033     self._bool = any(self)
2025-09-08T02:43:06,033                  ~~~^^^^^^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 147, in <genexpr>
2025-09-08T02:43:06,033     return (c for c in iterator if id(c) not in self._incompatible_ids)
2025-09-08T02:43:06,033                        ^^^^^^^^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 37, in _iter_built
2025-09-08T02:43:06,033     candidate = func()
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/factory.py", line 187, in _make_candidate_from_link
2025-09-08T02:43:06,033     base: Optional[BaseCandidate] = self._make_base_candidate_from_link(
2025-09-08T02:43:06,033                                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
2025-09-08T02:43:06,033         link, template, name, version
2025-09-08T02:43:06,033         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033     )
2025-09-08T02:43:06,033     ^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/factory.py", line 233, in _make_base_candidate_from_link
2025-09-08T02:43:06,033     self._link_candidate_cache[link] = LinkCandidate(
2025-09-08T02:43:06,033                                        ~~~~~~~~~~~~~^
2025-09-08T02:43:06,033         link,
2025-09-08T02:43:06,033         ^^^^^
2025-09-08T02:43:06,033     ...<3 lines>...
2025-09-08T02:43:06,033         version=version,
2025-09-08T02:43:06,033         ^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033     )
2025-09-08T02:43:06,033     ^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 306, in __init__
2025-09-08T02:43:06,033     super().__init__(
2025-09-08T02:43:06,033     ~~~~~~~~~~~~~~~~^
2025-09-08T02:43:06,033         link=link,
2025-09-08T02:43:06,033         ^^^^^^^^^^
2025-09-08T02:43:06,033     ...<4 lines>...
2025-09-08T02:43:06,033         version=version,
2025-09-08T02:43:06,033         ^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033     )
2025-09-08T02:43:06,033     ^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 159, in __init__
2025-09-08T02:43:06,033     self.dist = self._prepare()
2025-09-08T02:43:06,033                 ~~~~~~~~~~~~~^^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 236, in _prepare
2025-09-08T02:43:06,033     dist = self._prepare_distribution()
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 317, in _prepare_distribution
2025-09-08T02:43:06,033     return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
2025-09-08T02:43:06,033            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/operations/prepare.py", line 532, in prepare_linked_requirement
2025-09-08T02:43:06,033     return self._prepare_linked_requirement(req, parallel_builds)
2025-09-08T02:43:06,033            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/operations/prepare.py", line 647, in _prepare_linked_requirement
2025-09-08T02:43:06,033     dist = _get_prepared_distribution(
2025-09-08T02:43:06,033         req,
2025-09-08T02:43:06,033     ...<3 lines>...
2025-09-08T02:43:06,033         self.check_build_deps,
2025-09-08T02:43:06,033     )
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/operations/prepare.py", line 71, in _get_prepared_distribution
2025-09-08T02:43:06,033     abstract_dist.prepare_distribution_metadata(
2025-09-08T02:43:06,033     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
2025-09-08T02:43:06,033         finder, build_isolation, check_build_deps
2025-09-08T02:43:06,033         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033     )
2025-09-08T02:43:06,033     ^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/distributions/sdist.py", line 69, in prepare_distribution_metadata
2025-09-08T02:43:06,033     self.req.prepare_metadata()
2025-09-08T02:43:06,033     ~~~~~~~~~~~~~~~~~~~~~~~~~^^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/req/req_install.py", line 581, in prepare_metadata
2025-09-08T02:43:06,033     self.metadata_directory = generate_metadata_legacy(
2025-09-08T02:43:06,033                               ~~~~~~~~~~~~~~~~~~~~~~~~^
2025-09-08T02:43:06,033         build_env=self.build_env,
2025-09-08T02:43:06,033         ^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033     ...<3 lines>...
2025-09-08T02:43:06,033         details=details,
2025-09-08T02:43:06,033         ^^^^^^^^^^^^^^^^
2025-09-08T02:43:06,033     )
2025-09-08T02:43:06,033     ^
2025-09-08T02:43:06,033   File "/usr/lib/python3/dist-packages/pip/_internal/operations/build/metadata_legacy.py", line 70, in generate_metadata
2025-09-08T02:43:06,033     raise MetadataGenerationFailed(package_details=details) from error
2025-09-08T02:43:06,033 pip._internal.exceptions.MetadataGenerationFailed: metadata generation failed
2025-09-08T02:43:06,055 Removed bob-learn-linear==2.0.5 from https://files.pythonhosted.org/packages/80/df/b0ab7adfb5fd073543d7eddf470120ed2a9b5da5191a9562474197cbd275/bob.learn.linear-2.0.5.zip from build tracker '/tmp/pip-build-tracker-nwdkcnvm'
2025-09-08T02:43:06,055 Removed build tracker: '/tmp/pip-build-tracker-nwdkcnvm'