2023-03-30T09:41:22,170 Created temporary directory: /tmp/pip-ephem-wheel-cache-gmmj5ohi
2023-03-30T09:41:22,174 Created temporary directory: /tmp/pip-build-tracker-17o_hv6w
2023-03-30T09:41:22,174 Initialized build tracking at /tmp/pip-build-tracker-17o_hv6w
2023-03-30T09:41:22,174 Created build tracker: /tmp/pip-build-tracker-17o_hv6w
2023-03-30T09:41:22,175 Entered build tracker: /tmp/pip-build-tracker-17o_hv6w
2023-03-30T09:41:22,175 Created temporary directory: /tmp/pip-wheel-ljjcwcg4
2023-03-30T09:41:22,182 DEPRECATION: --no-binary currently disables reading from the cache of locally built wheels. In the future --no-binary will not influence the wheel cache. pip 23.1 will enforce this behaviour change. A possible replacement is to use the --no-cache-dir option. You can use the flag --use-feature=no-binary-enable-wheel-cache to test the upcoming behaviour. Discussion can be found at https://github.com/pypa/pip/issues/11453
2023-03-30T09:41:22,186 Created temporary directory: /tmp/pip-ephem-wheel-cache-f9cn3kl5
2023-03-30T09:41:22,220 Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
2023-03-30T09:41:22,224 2 location(s) to search for versions of mcbackend:
2023-03-30T09:41:22,224 * https://pypi.org/simple/mcbackend/
2023-03-30T09:41:22,224 * https://www.piwheels.org/simple/mcbackend/
2023-03-30T09:41:22,225 Fetching project page and analyzing links: https://pypi.org/simple/mcbackend/
2023-03-30T09:41:22,226 Getting page https://pypi.org/simple/mcbackend/
2023-03-30T09:41:22,228 Found index url https://pypi.org/simple
2023-03-30T09:41:22,291 Fetched page https://pypi.org/simple/mcbackend/ as application/vnd.pypi.simple.v1+json
2023-03-30T09:41:22,297   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/c3/f7/9a1f0b7af11fa53b49ced2843615b7bc4f33cf92b07e1e2ba6ce0dd48e9c/mcbackend-0.1.0-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,298   Found link https://files.pythonhosted.org/packages/30/0f/1ca392f9f8412a8f4177afeebf61dba23dedafbbbac271c0db9748f684c3/mcbackend-0.1.0.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.1.0
2023-03-30T09:41:22,298   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/39/84/0bd26b81ee775f415f9cd701e6d1481dc0f1e35f5b664cdf8da0347f5725/mcbackend-0.1.1-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,299   Found link https://files.pythonhosted.org/packages/e4/15/a3ff916e0de7e476df50f8bd06dd0282fa6dc7b961b81b4a4f1b379c3c57/mcbackend-0.1.1.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.1.1
2023-03-30T09:41:22,299   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/69/57/6bda399512b13e17376a592fee8a63a7d82f3b0afd778128b0e563f9c702/mcbackend-0.1.2-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,300   Found link https://files.pythonhosted.org/packages/af/e4/5b38ef5b83c90e37f1bc28338c5f987a51189f30969d35281feaa9e3f2e6/mcbackend-0.1.2.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.1.2
2023-03-30T09:41:22,300   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/cb/7a/8d0ec5c641718c3c2f229fc0580047bd95cd8e464331d3808732df63b83a/mcbackend-0.1.3-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,300   Found link https://files.pythonhosted.org/packages/d0/2f/977c9680a1f5edb0839bfcbe77faa5d84b5d4806010800e400460f381aa2/mcbackend-0.1.3.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.1.3
2023-03-30T09:41:22,301   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/be/7d/ed760a0f8508bad0cc87e83eed5d84411e4732eacd57f112a13712effc0b/mcbackend-0.2.0-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,301   Found link https://files.pythonhosted.org/packages/ee/e3/89ed9f753c2065d7fce8cf9d1fecbd6c9509a34acfcea023e3903bc7ab32/mcbackend-0.2.0.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.2.0
2023-03-30T09:41:22,302   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/6a/d1/35c48e027a0e42a64f079c3bb21a282e04fd9e92d110757f31c60eaa495c/mcbackend-0.2.1-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,302   Found link https://files.pythonhosted.org/packages/b1/62/de34cd7482b33fca64cebf28c9216a349169ebd4aafbd6105e92da31af98/mcbackend-0.2.1.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.2.1
2023-03-30T09:41:22,302   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/f7/be/d424cfcaf2d457b037082becbe280dc5cfac2c602d307929bb7d0cca1e87/mcbackend-0.2.2-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,303   Found link https://files.pythonhosted.org/packages/73/b8/fd9c2e47083195dd948cc0cfe7a938df9fa01458b7cfa1460c9dd1a96011/mcbackend-0.2.2.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.2.2
2023-03-30T09:41:22,303   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/da/61/dce6866bd906f3454a5f469f1401568282d0d764728574f2c86c47bde8e3/mcbackend-0.2.3-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,304   Found link https://files.pythonhosted.org/packages/21/27/0a20b08c5b7d4b52bffdc56d6917e9faab76f35e7a64f45120a5a9b7ad9a/mcbackend-0.2.3.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.2.3
2023-03-30T09:41:22,304   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/f5/ac/a155a478db1d22dff00923c9c65329ab3b6cea9387e2562a5e9aca9ba930/mcbackend-0.2.4-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,304   Found link https://files.pythonhosted.org/packages/81/f7/fe87132ef04427e75fced496512519b4b452c88b82e6b6dd9d1a1954c5fb/mcbackend-0.2.4.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.2.4
2023-03-30T09:41:22,305   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/27/97/acf7bacacffafa2a8106637b985653299766facd443fa21fb728b5f96a3e/mcbackend-0.2.5-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,305   Found link https://files.pythonhosted.org/packages/db/8b/31fa802493bc08d933fff93250a10626d850ede6b06265d5c51e0af43f41/mcbackend-0.2.5.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.2.5
2023-03-30T09:41:22,305   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/6d/b9/95bf719eb9ced29756400c39c754842ddfadde726a321525d3530c059b91/mcbackend-0.2.6-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,306   Found link https://files.pythonhosted.org/packages/bb/39/e389cb6e8258c8d77a69260238590e0f193f2ed7b19a4afb597090381de3/mcbackend-0.2.6.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.2.6
2023-03-30T09:41:22,306   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/9f/a0/5a2d761c4d7fb68d22c677538ed48e1274e674f8f7b374ecde0294b28af6/mcbackend-0.2.7-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,307   Found link https://files.pythonhosted.org/packages/e6/7c/5fcd49ab82e26b34ff7d969a1203a07b0b3af5c9c7fecdf858164292884c/mcbackend-0.2.7.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.2.7
2023-03-30T09:41:22,307   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/9d/ee/8750f2551ce2d038a4deebff86e9cca16a99588d1a182b3e10f938382453/mcbackend-0.3.0-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,308   Found link https://files.pythonhosted.org/packages/2b/83/cc2fae5273dc61f292a6e50431cb91117ec4fabaa5bcbb410e54648614d7/mcbackend-0.3.0.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.3.0
2023-03-30T09:41:22,308   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/6b/30/9dc6a9014a9f111c1954868465de9b9337734650b11684137c3d6d26aa90/mcbackend-0.4.0-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,308   Found link https://files.pythonhosted.org/packages/f6/0f/b6863c92fe2c91bd61920869ffd4add1bfafee0e149f440d4b0274fa68b5/mcbackend-0.4.0.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.4.0
2023-03-30T09:41:22,309   Skipping link: No binaries permitted for mcbackend: https://files.pythonhosted.org/packages/0f/0e/20fdeef76beda2bb36bc6c97e5b83a602d49b9b0d114dd3b49891d054beb/mcbackend-0.5.0-py3-none-any.whl (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7)
2023-03-30T09:41:22,309   Found link https://files.pythonhosted.org/packages/7e/35/3dc81fad17196803edfced75a9a7ed631ad03c285084351ad3b8be17285e/mcbackend-0.5.0.tar.gz (from https://pypi.org/simple/mcbackend/) (requires-python:>=3.7), version: 0.5.0
2023-03-30T09:41:22,310 Fetching project page and analyzing links: https://www.piwheels.org/simple/mcbackend/
2023-03-30T09:41:22,310 Getting page https://www.piwheels.org/simple/mcbackend/
2023-03-30T09:41:22,311 Found index url https://www.piwheels.org/simple
2023-03-30T09:41:22,549 Fetched page https://www.piwheels.org/simple/mcbackend/ as text/html
2023-03-30T09:41:22,550 Skipping link: not a file: https://www.piwheels.org/simple/mcbackend/
2023-03-30T09:41:22,551 Skipping link: not a file: https://pypi.org/simple/mcbackend/
2023-03-30T09:41:22,571 Given no hashes to check 1 links for project 'mcbackend': discarding no candidates
2023-03-30T09:41:22,588 Collecting mcbackend==0.5.0
2023-03-30T09:41:22,591   Created temporary directory: /tmp/pip-unpack-9c2p1w07
2023-03-30T09:41:22,633   Downloading mcbackend-0.5.0.tar.gz (38 kB)
2023-03-30T09:41:22,719   Added mcbackend==0.5.0 from https://files.pythonhosted.org/packages/7e/35/3dc81fad17196803edfced75a9a7ed631ad03c285084351ad3b8be17285e/mcbackend-0.5.0.tar.gz to build tracker '/tmp/pip-build-tracker-17o_hv6w'
2023-03-30T09:41:22,723   Created temporary directory: /tmp/pip-build-env-_kzv47w6
2023-03-30T09:41:22,735   Installing build dependencies: started
2023-03-30T09:41:22,736   Running command pip subprocess to install build dependencies
2023-03-30T09:41:24,127   Using pip 23.0.1 from /home/piwheels/.local/lib/python3.9/site-packages/pip (python 3.9)
2023-03-30T09:41:24,782   DEPRECATION: --no-binary currently disables reading from the cache of locally built wheels. In the future --no-binary will not influence the wheel cache. pip 23.1 will enforce this behaviour change. A possible replacement is to use the --no-cache-dir option. You can use the flag --use-feature=no-binary-enable-wheel-cache to test the upcoming behaviour. Discussion can be found at https://github.com/pypa/pip/issues/11453
2023-03-30T09:41:24,811   Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
2023-03-30T09:41:26,480   Collecting setuptools>=40.8.0
2023-03-30T09:41:26,586     Using cached https://www.piwheels.org/simple/setuptools/setuptools-67.6.1-py3-none-any.whl (1.1 MB)
2023-03-30T09:41:26,847   Collecting wheel
2023-03-30T09:41:26,865     Using cached https://www.piwheels.org/simple/wheel/wheel-0.40.0-py3-none-any.whl (64 kB)
2023-03-30T09:41:29,181   Installing collected packages: wheel, setuptools
2023-03-30T09:41:29,421     Creating /tmp/pip-build-env-_kzv47w6/overlay/bin
2023-03-30T09:41:29,423     changing mode of /tmp/pip-build-env-_kzv47w6/overlay/bin/wheel to 755
2023-03-30T09:41:31,668   Successfully installed setuptools-67.6.1 wheel-0.40.0
2023-03-30T09:41:32,161   Installing build dependencies: finished with status 'done'
2023-03-30T09:41:32,167   Getting requirements to build wheel: started
2023-03-30T09:41:32,168   Running command Getting requirements to build wheel
2023-03-30T09:41:32,665   Traceback (most recent call last):
2023-03-30T09:41:32,665     File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
2023-03-30T09:41:32,666       main()
2023-03-30T09:41:32,666     File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
2023-03-30T09:41:32,666       json_out['return_val'] = hook(**hook_input['kwargs'])
2023-03-30T09:41:32,666     File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 118, in get_requires_for_build_wheel
2023-03-30T09:41:32,666       return hook(config_settings)
2023-03-30T09:41:32,667     File "/tmp/pip-build-env-_kzv47w6/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 338, in get_requires_for_build_wheel
2023-03-30T09:41:32,667       return self._get_build_requires(config_settings, requirements=['wheel'])
2023-03-30T09:41:32,667     File "/tmp/pip-build-env-_kzv47w6/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 320, in _get_build_requires
2023-03-30T09:41:32,668       self.run_setup()
2023-03-30T09:41:32,668     File "/tmp/pip-build-env-_kzv47w6/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 484, in run_setup
2023-03-30T09:41:32,668       super(_BuildMetaLegacyBackend,
2023-03-30T09:41:32,669     File "/tmp/pip-build-env-_kzv47w6/overlay/lib/python3.9/site-packages/setuptools/build_meta.py", line 335, in run_setup
2023-03-30T09:41:32,669       exec(code, locals())
2023-03-30T09:41:32,669     File "<string>", line 42, in <module>
2023-03-30T09:41:32,670   FileNotFoundError: [Errno 2] No such file or directory: '/tmp/pip-wheel-ljjcwcg4/mcbackend_d5261433873a48bab5795e742f8083bd/requirements.txt'
2023-03-30T09:41:32,716   ERROR: [present-rich] Getting requirements to build wheel exited with 1
2023-03-30T09:41:32,737   [bold magenta]full command[/]: [blue]/usr/bin/python3 /home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py get_requires_for_build_wheel /tmp/tmpzejc6dyj[/]
2023-03-30T09:41:32,737   [bold magenta]cwd[/]: /tmp/pip-wheel-ljjcwcg4/mcbackend_d5261433873a48bab5795e742f8083bd
2023-03-30T09:41:32,737   Getting requirements to build wheel: finished with status 'error'
2023-03-30T09:41:32,741 ERROR: [present-rich] Getting requirements to build wheel exited with 1
2023-03-30T09:41:32,746 Exception information:
2023-03-30T09:41:32,746 Traceback (most recent call last):
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/cli/base_command.py", line 160, in exc_logging_wrapper
2023-03-30T09:41:32,746     status = run_func(*args)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/cli/req_command.py", line 247, in wrapper
2023-03-30T09:41:32,746     return func(self, options, args)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/commands/wheel.py", line 170, in run
2023-03-30T09:41:32,746     requirement_set = resolver.resolve(reqs, check_supported_wheels=True)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/resolver.py", line 92, in resolve
2023-03-30T09:41:32,746     result = self._result = resolver.resolve(
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/resolvelib/resolvers.py", line 481, in resolve
2023-03-30T09:41:32,746     state = resolution.resolve(requirements, max_rounds=max_rounds)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/resolvelib/resolvers.py", line 348, in resolve
2023-03-30T09:41:32,746     self._add_to_criteria(self.state.criteria, r, parent=None)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/resolvelib/resolvers.py", line 172, in _add_to_criteria
2023-03-30T09:41:32,746     if not criterion.candidates:
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/resolvelib/structs.py", line 151, in __bool__
2023-03-30T09:41:32,746     return bool(self._sequence)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 155, in __bool__
2023-03-30T09:41:32,746     return any(self)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 143, in <genexpr>
2023-03-30T09:41:32,746     return (c for c in iterator if id(c) not in self._incompatible_ids)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 47, in _iter_built
2023-03-30T09:41:32,746     candidate = func()
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/factory.py", line 206, in _make_candidate_from_link
2023-03-30T09:41:32,746     self._link_candidate_cache[link] = LinkCandidate(
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 297, in __init__
2023-03-30T09:41:32,746     super().__init__(
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 162, in __init__
2023-03-30T09:41:32,746     self.dist = self._prepare()
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 231, in _prepare
2023-03-30T09:41:32,746     dist = self._prepare_distribution()
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 308, in _prepare_distribution
2023-03-30T09:41:32,746     return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/operations/prepare.py", line 491, in prepare_linked_requirement
2023-03-30T09:41:32,746     return self._prepare_linked_requirement(req, parallel_builds)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/operations/prepare.py", line 577, in _prepare_linked_requirement
2023-03-30T09:41:32,746     dist = _get_prepared_distribution(
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/operations/prepare.py", line 69, in _get_prepared_distribution
2023-03-30T09:41:32,746     abstract_dist.prepare_distribution_metadata(
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/distributions/sdist.py", line 48, in prepare_distribution_metadata
2023-03-30T09:41:32,746     self._install_build_reqs(finder)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/distributions/sdist.py", line 118, in _install_build_reqs
2023-03-30T09:41:32,746     build_reqs = self._get_build_requires_wheel()
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/distributions/sdist.py", line 95, in _get_build_requires_wheel
2023-03-30T09:41:32,746     return backend.get_requires_for_build_wheel()
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/utils/misc.py", line 701, in get_requires_for_build_wheel
2023-03-30T09:41:32,746     return super().get_requires_for_build_wheel(config_settings=cs)
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/pyproject_hooks/_impl.py", line 166, in get_requires_for_build_wheel
2023-03-30T09:41:32,746     return self._call_hook('get_requires_for_build_wheel', {
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_vendor/pyproject_hooks/_impl.py", line 311, in _call_hook
2023-03-30T09:41:32,746     self._subprocess_runner(
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/utils/subprocess.py", line 252, in runner
2023-03-30T09:41:32,746     call_subprocess(
2023-03-30T09:41:32,746   File "/home/piwheels/.local/lib/python3.9/site-packages/pip/_internal/utils/subprocess.py", line 224, in call_subprocess
2023-03-30T09:41:32,746     raise error
2023-03-30T09:41:32,746 pip._internal.exceptions.InstallationSubprocessError: Getting requirements to build wheel exited with 1
2023-03-30T09:41:32,757 Removed mcbackend==0.5.0 from https://files.pythonhosted.org/packages/7e/35/3dc81fad17196803edfced75a9a7ed631ad03c285084351ad3b8be17285e/mcbackend-0.5.0.tar.gz from build tracker '/tmp/pip-build-tracker-17o_hv6w'
2023-03-30T09:41:32,757 Removed build tracker: '/tmp/pip-build-tracker-17o_hv6w'