2022-12-31T14:15:07,551 Created temporary directory: /tmp/pip-ephem-wheel-cache-x2qv5oj7
2022-12-31T14:15:07,553 Created temporary directory: /tmp/pip-build-tracker-h1op46ss
2022-12-31T14:15:07,553 Initialized build tracking at /tmp/pip-build-tracker-h1op46ss
2022-12-31T14:15:07,553 Created build tracker: /tmp/pip-build-tracker-h1op46ss
2022-12-31T14:15:07,553 Entered build tracker: /tmp/pip-build-tracker-h1op46ss
2022-12-31T14:15:07,554 Created temporary directory: /tmp/pip-wheel-zns38ncy
2022-12-31T14:15:07,557 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
2022-12-31T14:15:07,559 Created temporary directory: /tmp/pip-ephem-wheel-cache-cav5hd6i
2022-12-31T14:15:07,587 Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
2022-12-31T14:15:07,591 2 location(s) to search for versions of contactmechanics:
2022-12-31T14:15:07,591 * https://pypi.org/simple/contactmechanics/
2022-12-31T14:15:07,591 * https://www.piwheels.org/simple/contactmechanics/
2022-12-31T14:15:07,591 Fetching project page and analyzing links: https://pypi.org/simple/contactmechanics/
2022-12-31T14:15:07,592 Getting page https://pypi.org/simple/contactmechanics/
2022-12-31T14:15:07,593 Found index url https://pypi.org/simple
2022-12-31T14:15:07,645 Fetched page https://pypi.org/simple/contactmechanics/ as application/vnd.pypi.simple.v1+json
2022-12-31T14:15:07,648   Found link https://files.pythonhosted.org/packages/29/e1/8d40dcf7f8ded1f40cc4e3d195483eb7f7687d2f6b62d4de27a801db52cc/ContactMechanics-0.90.0.tar.gz (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.5.0), version: 0.90.0
2022-12-31T14:15:07,649   Skipping link: unsupported archive format: .egg: https://files.pythonhosted.org/packages/8d/ab/7064e6c2971d9e71f607fda1e1c4035891492b2ce203f2fb0d1c8943f4c7/ContactMechanics-0.90.1-py3.6.egg (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.5.0)
2022-12-31T14:15:07,649   Found link https://files.pythonhosted.org/packages/d9/d2/1998f8b9f97613a72cf9b64ea57b78440c765a6538e83db664705a5ee991/ContactMechanics-0.90.1.tar.gz (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.5.0), version: 0.90.1
2022-12-31T14:15:07,650   Skipping link: unsupported archive format: .egg: https://files.pythonhosted.org/packages/62/3a/4e54fcde5691bbb21f4393470ac49c7719148f3c5de70be6896735ec9bb5/ContactMechanics-0.91.0-py3.8.egg (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.5.0)
2022-12-31T14:15:07,650   Found link https://files.pythonhosted.org/packages/7b/1b/24fca803a232cfb1a7372a5ef7cecf6cf2737d38e9cc0797b6ecb57d5fc5/ContactMechanics-0.91.0.tar.gz (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.5.0), version: 0.91.0
2022-12-31T14:15:07,650   Skipping link: unsupported archive format: .egg: https://files.pythonhosted.org/packages/07/c1/2f2dc1d67cfe075c9f49b7d0d2e7ed135a0aec4880c8fb12cf301e7448b6/ContactMechanics-0.92.0-py3.8.egg (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.5.0)
2022-12-31T14:15:07,651   Found link https://files.pythonhosted.org/packages/bd/f5/355df4d8709435c6fbcbc552acf21ee929f234ddaecbca2ce90649ba643e/ContactMechanics-0.92.0.tar.gz (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.5.0), version: 0.92.0
2022-12-31T14:15:07,652   Found link https://files.pythonhosted.org/packages/bf/4c/92e14c51a9400154a5c8674ca336d324fab730616ceda8caafe93293725d/ContactMechanics-0.93.0.tar.gz (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.5.0), version: 0.93.0
2022-12-31T14:15:07,652   Found link https://files.pythonhosted.org/packages/0d/97/993b178689fd9a22ea63f419b4bb84bbf2db1a60bea97954034342ab3db0/ContactMechanics-1.0.0.tar.gz (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.5.0), version: 1.0.0
2022-12-31T14:15:07,653   Found link https://files.pythonhosted.org/packages/e9/0e/9a8ed751adcaa41ef2d4acd2cce22c114f5882e9262ded88c562d87569bd/ContactMechanics-1.1.0.tar.gz (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.7.0), version: 1.1.0
2022-12-31T14:15:07,653   Skipping link: No binaries permitted for contactmechanics: https://files.pythonhosted.org/packages/a3/f6/3bec187779841358e2c2059454071b3befc5f3c6441d46070dd0b954bd75/contactmechanics-1.1.0-py3-none-any.whl (from https://pypi.org/simple/contactmechanics/) (requires-python:>=3.7.0)
2022-12-31T14:15:07,653 Fetching project page and analyzing links: https://www.piwheels.org/simple/contactmechanics/
2022-12-31T14:15:07,654 Getting page https://www.piwheels.org/simple/contactmechanics/
2022-12-31T14:15:07,655 Found index url https://www.piwheels.org/simple
2022-12-31T14:15:07,808 Fetched page https://www.piwheels.org/simple/contactmechanics/ as text/html
2022-12-31T14:15:07,811   Skipping link: No binaries permitted for contactmechanics: https://www.piwheels.org/simple/contactmechanics/ContactMechanics-1.0.0-py3-none-any.whl#sha256=76964f7e8800de02c6e1aad3ff6b398a5dedc331beda2e072386418a5aa088f0 (from https://www.piwheels.org/simple/contactmechanics/) (requires-python:>=3.5.0)
2022-12-31T14:15:07,811   Skipping link: No binaries permitted for contactmechanics: https://www.piwheels.org/simple/contactmechanics/ContactMechanics-0.93.0-py3-none-any.whl#sha256=83b934f4f6b235cd13d95e15ebf5d7d93901163c26e2570739497a67a3a33bd3 (from https://www.piwheels.org/simple/contactmechanics/) (requires-python:>=3.5.0)
2022-12-31T14:15:07,811   Skipping link: No binaries permitted for contactmechanics: https://www.piwheels.org/simple/contactmechanics/ContactMechanics-0.92.0-py3-none-any.whl#sha256=a6089111f9f2b505a68076c5f62a677bae919c5693762b29250cb1da0a025ada (from https://www.piwheels.org/simple/contactmechanics/) (requires-python:>=3.5.0)
2022-12-31T14:15:07,812   Skipping link: No binaries permitted for contactmechanics: https://www.piwheels.org/simple/contactmechanics/ContactMechanics-0.91.0-py3-none-any.whl#sha256=1e3f61be78af26b9e79b53d3093c3e311f1d0bb580c3fa47910e9dc85ce0f2ef (from https://www.piwheels.org/simple/contactmechanics/) (requires-python:>=3.5.0)
2022-12-31T14:15:07,812   Skipping link: No binaries permitted for contactmechanics: https://www.piwheels.org/simple/contactmechanics/ContactMechanics-0.90.1-py3-none-any.whl#sha256=baae0ec35a8fa5a2d8f416ddd077acba698202bc8de7d98ceb9ab85e60a79b71 (from https://www.piwheels.org/simple/contactmechanics/) (requires-python:>=3.5.0)
2022-12-31T14:15:07,812   Skipping link: No binaries permitted for contactmechanics: https://www.piwheels.org/simple/contactmechanics/ContactMechanics-0.90.0-py3-none-any.whl#sha256=9ad57a1ce0d9d77c520179974f699b30a0727950146168eda379d8add9c0fa9f (from https://www.piwheels.org/simple/contactmechanics/) (requires-python:>=3.5.0)
2022-12-31T14:15:07,812 Skipping link: not a file: https://www.piwheels.org/simple/contactmechanics/
2022-12-31T14:15:07,812 Skipping link: not a file: https://pypi.org/simple/contactmechanics/
2022-12-31T14:15:07,831 Given no hashes to check 1 links for project 'contactmechanics': discarding no candidates
2022-12-31T14:15:07,848 Collecting contactmechanics==1.1.0
2022-12-31T14:15:07,851   Created temporary directory: /tmp/pip-unpack-j4gaaruy
2022-12-31T14:15:07,904   Downloading ContactMechanics-1.1.0.tar.gz (9.1 MB)
2022-12-31T14:15:09,806   Added contactmechanics==1.1.0 from https://files.pythonhosted.org/packages/e9/0e/9a8ed751adcaa41ef2d4acd2cce22c114f5882e9262ded88c562d87569bd/ContactMechanics-1.1.0.tar.gz to build tracker '/tmp/pip-build-tracker-h1op46ss'
2022-12-31T14:15:09,811   Created temporary directory: /tmp/pip-build-env-46o7j9ri
2022-12-31T14:15:09,818   Installing build dependencies: started
2022-12-31T14:15:09,819   Running command pip subprocess to install build dependencies
2022-12-31T14:15:11,041   Using pip 22.3 from /usr/local/lib/python3.9/dist-packages/pip (python 3.9)
2022-12-31T14:15:11,457   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
2022-12-31T14:15:11,482   Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
2022-12-31T14:15:12,086   Collecting flit_core>=3.2
2022-12-31T14:15:12,195     Using cached https://www.piwheels.org/simple/flit-core/flit_core-3.8.0-py3-none-any.whl (62 kB)
2022-12-31T14:15:14,242   Installing collected packages: flit_core
2022-12-31T14:15:14,607   Successfully installed flit_core-3.8.0

2022-12-31T14:15:14,623   [notice] A new release of pip available: 22.3 -> 22.3.1
2022-12-31T14:15:14,623   [notice] To update, run: python3 -m pip install --upgrade pip
2022-12-31T14:15:14,838   Installing build dependencies: finished with status 'done'
2022-12-31T14:15:14,844   Getting requirements to build wheel: started
2022-12-31T14:15:14,845   Running command Getting requirements to build wheel
2022-12-31T14:15:15,166   Getting requirements to build wheel: finished with status 'done'
2022-12-31T14:15:15,213   Installing backend dependencies: started
2022-12-31T14:15:15,214   Running command pip subprocess to install backend dependencies
2022-12-31T14:15:16,445   Using pip 22.3 from /usr/local/lib/python3.9/dist-packages/pip (python 3.9)
2022-12-31T14:15:16,860   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
2022-12-31T14:15:16,886   Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
2022-12-31T14:15:17,390   Collecting SurfaceTopography>=1.3.0
2022-12-31T14:15:17,478     Downloading surfacetopography-1.3.0.tar.gz (10.2 MB)
2022-12-31T14:15:18,258        ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 10.2/10.2 MB 13.2 MB/s eta 0:00:00
2022-12-31T14:15:23,812     Installing build dependencies: started
2022-12-31T14:15:23,814     Running command pip subprocess to install build dependencies
2022-12-31T14:15:25,535     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
2022-12-31T14:15:25,559     Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
2022-12-31T14:15:26,144     Collecting meson>=0.46.0
2022-12-31T14:15:26,327       Using cached https://www.piwheels.org/simple/meson/meson-1.0.0-py3-none-any.whl (900 kB)
2022-12-31T14:15:26,497     Collecting meson-python>=0.11.0
2022-12-31T14:15:26,620       Using cached meson_python-0.12.0-py3-none-any.whl (66 kB)
2022-12-31T14:15:26,873     Collecting ninja
2022-12-31T14:15:26,926       Using cached https://www.piwheels.org/simple/ninja/ninja-1.11.1-cp39-cp39-linux_armv7l.whl (132 kB)
2022-12-31T14:15:28,126     Collecting numpy<1.24.0
2022-12-31T14:15:29,319       Using cached https://www.piwheels.org/simple/numpy/numpy-1.23.5-cp39-cp39-linux_armv7l.whl (12.4 MB)
2022-12-31T14:15:29,930     Collecting pyproject-metadata>=0.6.1
2022-12-31T14:15:29,961       Using cached https://www.piwheels.org/simple/pyproject-metadata/pyproject_metadata-0.6.1-py3-none-any.whl (7.4 kB)
2022-12-31T14:15:30,120     Collecting typing-extensions>=3.7.4
2022-12-31T14:15:30,137       Using cached https://www.piwheels.org/simple/typing-extensions/typing_extensions-4.4.0-py3-none-any.whl (26 kB)
2022-12-31T14:15:30,254     Collecting tomli>=1.0.0
2022-12-31T14:15:30,272       Using cached https://www.piwheels.org/simple/tomli/tomli-2.0.1-py3-none-any.whl (12 kB)
2022-12-31T14:15:30,527     Collecting packaging>=19.0
2022-12-31T14:15:30,639       Using cached https://www.piwheels.org/simple/packaging/packaging-22.0-py3-none-any.whl (42 kB)
2022-12-31T14:15:32,843     Installing collected packages: ninja, typing-extensions, tomli, packaging, numpy, meson, pyproject-metadata, meson-python
2022-12-31T14:15:49,418     Successfully installed meson-1.0.0 meson-python-0.12.0 ninja-1.11.1 numpy-1.23.5 packaging-22.0 pyproject-metadata-0.6.1 tomli-2.0.1 typing-extensions-4.4.0

2022-12-31T14:15:49,435     [notice] A new release of pip available: 22.3 -> 22.3.1
2022-12-31T14:15:49,435     [notice] To update, run: python3 -m pip install --upgrade pip
2022-12-31T14:15:49,734     Installing build dependencies: finished with status 'done'
2022-12-31T14:15:49,739     Getting requirements to build wheel: started
2022-12-31T14:15:49,740     Running command Getting requirements to build wheel
2022-12-31T14:15:55,029     The Meson build system
2022-12-31T14:15:55,030     Version: 1.0.0
2022-12-31T14:15:55,030     Source dir: /tmp/pip-install-xouwvyjv/surfacetopography_c3b095d33e254d77927717836f8d090a
2022-12-31T14:15:55,031     Build dir: /tmp/pip-install-xouwvyjv/surfacetopography_c3b095d33e254d77927717836f8d090a/.mesonpy-_yt9jz1b/build
2022-12-31T14:15:55,031     Build type: native build
2022-12-31T14:15:55,031     Project name: SurfaceTopography
2022-12-31T14:15:55,031     Project version: 1.3.0
2022-12-31T14:15:55,032     C compiler for the host machine: cc (gcc 10.2.1 "cc (Raspbian 10.2.1-6+rpi1) 10.2.1 20210110")
2022-12-31T14:15:55,032     C linker for the host machine: cc ld.bfd 2.35.2
2022-12-31T14:15:55,032     C++ compiler for the host machine: c++ (gcc 10.2.1 "c++ (Raspbian 10.2.1-6+rpi1) 10.2.1 20210110")
2022-12-31T14:15:55,033     C++ linker for the host machine: c++ ld.bfd 2.35.2
2022-12-31T14:15:55,034     Host machine cpu family: arm
2022-12-31T14:15:55,036     Host machine cpu: armv7l
2022-12-31T14:15:55,037     Program python3 found: YES (/usr/bin/python3)
2022-12-31T14:15:55,038     Found pkg-config: /usr/bin/pkg-config (0.29.2)
2022-12-31T14:15:55,039     Build targets in project: 1

2022-12-31T14:15:55,042     SurfaceTopography 1.3.0

2022-12-31T14:15:55,044       User defined options
2022-12-31T14:15:55,045         Native files: /tmp/pip-install-xouwvyjv/surfacetopography_c3b095d33e254d77927717836f8d090a/.mesonpy-native-file.ini
2022-12-31T14:15:55,046         debug       : false
2022-12-31T14:15:55,047         optimization: 2
2022-12-31T14:15:55,048         prefix      : /usr

2022-12-31T14:15:55,051     Found ninja-1.11.1.git.kitware.jobserver-1 at /tmp/pip-build-env-p41v06np/overlay/bin/ninja

2022-12-31T14:15:55,053     ERROR: Clock skew detected. File /tmp/pip-install-xouwvyjv/surfacetopography_c3b095d33e254d77927717836f8d090a/.mesonpy-_yt9jz1b/build/meson-private/coredata.dat has a time stamp 0.5090s in the future.

2022-12-31T14:15:55,055     A full log can be found at /tmp/pip-install-xouwvyjv/surfacetopography_c3b095d33e254d77927717836f8d090a/.mesonpy-_yt9jz1b/build/meson-logs/meson-log.txt
2022-12-31T14:15:55,183     + meson setup --prefix=/usr /tmp/pip-install-xouwvyjv/surfacetopography_c3b095d33e254d77927717836f8d090a /tmp/pip-install-xouwvyjv/surfacetopography_c3b095d33e254d77927717836f8d090a/.mesonpy-_yt9jz1b/build --native-file=/tmp/pip-install-xouwvyjv/surfacetopography_c3b095d33e254d77927717836f8d090a/.mesonpy-native-file.ini -Ddebug=false -Doptimization=2
2022-12-31T14:15:55,235     error: subprocess-exited-with-error

2022-12-31T14:15:55,236     × Getting requirements to build wheel did not run successfully.
2022-12-31T14:15:55,236     │ exit code: 1
2022-12-31T14:15:55,236     ╰─> See above for output.

2022-12-31T14:15:55,236     note: This error originates from a subprocess, and is likely not a problem with pip.
2022-12-31T14:15:55,237     full command: /usr/bin/python3 /usr/local/lib/python3.9/dist-packages/pip/_vendor/pep517/in_process/_in_process.py get_requires_for_build_wheel /tmp/tmpfkcgc1j0
2022-12-31T14:15:55,238     cwd: /tmp/pip-install-xouwvyjv/surfacetopography_c3b095d33e254d77927717836f8d090a
2022-12-31T14:15:55,239     Getting requirements to build wheel: finished with status 'error'
2022-12-31T14:15:55,246   error: subprocess-exited-with-error

2022-12-31T14:15:55,247   × Getting requirements to build wheel did not run successfully.
2022-12-31T14:15:55,247   │ exit code: 1
2022-12-31T14:15:55,247   ╰─> See above for output.

2022-12-31T14:15:55,247   note: This error originates from a subprocess, and is likely not a problem with pip.

2022-12-31T14:15:55,263   [notice] A new release of pip available: 22.3 -> 22.3.1
2022-12-31T14:15:55,263   [notice] To update, run: python3 -m pip install --upgrade pip
2022-12-31T14:15:56,775   ERROR: [present-rich] pip subprocess to install backend dependencies exited with 1
2022-12-31T14:15:56,793   [bold magenta]full command[/]: [blue]/usr/bin/python3 /usr/local/lib/python3.9/dist-packages/pip/__pip-runner__.py install --ignore-installed --no-user --prefix /tmp/pip-build-env-46o7j9ri/normal --no-warn-script-location -v --no-binary contactmechanics --only-binary :none: -i https://pypi.org/simple --extra-index-url https://www.piwheels.org/simple --prefer-binary -- 'SurfaceTopography>=1.3.0' 'muSpectre>=0.25.1' netCDF4 scipy 'numpy<1.24.0' 'NuMPI>=0.3.1'[/]
2022-12-31T14:15:56,793   [bold magenta]cwd[/]: \[inherit]
2022-12-31T14:15:56,794   Installing backend dependencies: finished with status 'error'
2022-12-31T14:15:56,795 ERROR: [present-rich] pip subprocess to install backend dependencies exited with 1
2022-12-31T14:15:56,800 Exception information:
2022-12-31T14:15:56,800 Traceback (most recent call last):
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/cli/base_command.py", line 160, in exc_logging_wrapper
2022-12-31T14:15:56,800     status = run_func(*args)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/cli/req_command.py", line 247, in wrapper
2022-12-31T14:15:56,800     return func(self, options, args)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/commands/wheel.py", line 170, in run
2022-12-31T14:15:56,800     requirement_set = resolver.resolve(reqs, check_supported_wheels=True)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/resolver.py", line 92, in resolve
2022-12-31T14:15:56,800     result = self._result = resolver.resolve(
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 481, in resolve
2022-12-31T14:15:56,800     state = resolution.resolve(requirements, max_rounds=max_rounds)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 348, in resolve
2022-12-31T14:15:56,800     self._add_to_criteria(self.state.criteria, r, parent=None)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/resolvers.py", line 172, in _add_to_criteria
2022-12-31T14:15:56,800     if not criterion.candidates:
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_vendor/resolvelib/structs.py", line 151, in __bool__
2022-12-31T14:15:56,800     return bool(self._sequence)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 155, in __bool__
2022-12-31T14:15:56,800     return any(self)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 143, in <genexpr>
2022-12-31T14:15:56,800     return (c for c in iterator if id(c) not in self._incompatible_ids)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/found_candidates.py", line 47, in _iter_built
2022-12-31T14:15:56,800     candidate = func()
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/factory.py", line 206, in _make_candidate_from_link
2022-12-31T14:15:56,800     self._link_candidate_cache[link] = LinkCandidate(
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 297, in __init__
2022-12-31T14:15:56,800     super().__init__(
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 162, in __init__
2022-12-31T14:15:56,800     self.dist = self._prepare()
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 231, in _prepare
2022-12-31T14:15:56,800     dist = self._prepare_distribution()
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/resolution/resolvelib/candidates.py", line 308, in _prepare_distribution
2022-12-31T14:15:56,800     return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/operations/prepare.py", line 491, in prepare_linked_requirement
2022-12-31T14:15:56,800     return self._prepare_linked_requirement(req, parallel_builds)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/operations/prepare.py", line 577, in _prepare_linked_requirement
2022-12-31T14:15:56,800     dist = _get_prepared_distribution(
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/operations/prepare.py", line 69, in _get_prepared_distribution
2022-12-31T14:15:56,800     abstract_dist.prepare_distribution_metadata(
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/distributions/sdist.py", line 48, in prepare_distribution_metadata
2022-12-31T14:15:56,800     self._install_build_reqs(finder)
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/distributions/sdist.py", line 122, in _install_build_reqs
2022-12-31T14:15:56,800     self.req.build_env.install_requirements(
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/build_env.py", line 216, in install_requirements
2022-12-31T14:15:56,800     self._install_requirements(
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/build_env.py", line 274, in _install_requirements
2022-12-31T14:15:56,800     call_subprocess(
2022-12-31T14:15:56,800   File "/usr/local/lib/python3.9/dist-packages/pip/_internal/utils/subprocess.py", line 224, in call_subprocess
2022-12-31T14:15:56,800     raise error
2022-12-31T14:15:56,800 pip._internal.exceptions.InstallationSubprocessError: pip subprocess to install backend dependencies exited with 1
2022-12-31T14:15:56,810 Removed contactmechanics==1.1.0 from https://files.pythonhosted.org/packages/e9/0e/9a8ed751adcaa41ef2d4acd2cce22c114f5882e9262ded88c562d87569bd/ContactMechanics-1.1.0.tar.gz from build tracker '/tmp/pip-build-tracker-h1op46ss'
2022-12-31T14:15:56,811 Removed build tracker: '/tmp/pip-build-tracker-h1op46ss'