Read the Docs build information
Build id: 910993
Project: thorn-thorn-perception
Version: latest
Commit: e1e8ac8bf91c304ffb49906699498bbd8b4ac133
Date: 2022-04-07T19:58:46.528851Z
State: finished
Success: False


[rtd-command-info] start-time: 2022-04-07T19:59:24.734197Z, end-time: 2022-04-07T19:59:26.099781Z, duration: 1, exit-code: 0
git clone --no-single-branch --depth 50 git@github.com:thorn-oss/perception.git .
Cloning into '.'...
Warning: Permanently added 'github.com,192.30.255.113' (ECDSA) to the list of known hosts.

[rtd-command-info] start-time: 2022-04-07T19:59:26.277550Z, end-time: 2022-04-07T19:59:26.379485Z, duration: 0, exit-code: 0
git checkout --force origin/master
Note: switching to 'origin/master'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at e1e8ac8 Update branch reference

[rtd-command-info] start-time: 2022-04-07T19:59:26.547339Z, end-time: 2022-04-07T19:59:26.610126Z, duration: 0, exit-code: 0
git clean -d -f -f


[rtd-command-info] start-time: 2022-04-07T19:59:27.642214Z, end-time: 2022-04-07T19:59:32.376224Z, duration: 4, exit-code: 0
python3.7 -mvirtualenv --system-site-packages 
Using base prefix '/home/docs/.pyenv/versions/3.7.9'
New python executable in /home/docs/checkouts/readthedocs.org/user_builds/thorn-thorn-perception/envs/latest/bin/python3.7
Also creating executable in /home/docs/checkouts/readthedocs.org/user_builds/thorn-thorn-perception/envs/latest/bin/python
Installing setuptools, pip, wheel...
done.

[rtd-command-info] start-time: 2022-04-07T19:59:32.584200Z, end-time: 2022-04-07T19:59:34.406102Z, duration: 1, exit-code: 0
python -m pip install --upgrade --no-cache-dir pip setuptools<58.3.0
Requirement already satisfied: pip in /home/docs/checkouts/readthedocs.org/user_builds/thorn-thorn-perception/envs/latest/lib/python3.7/site-packages (22.0.4)
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Installing collected packages: setuptools
  Attempting uninstall: setuptools
    Found existing installation: setuptools 62.0.0
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[rtd-command-info] start-time: 2022-04-07T19:59:34.569486Z, end-time: 2022-04-07T19:59:42.841033Z, duration: 8, exit-code: 0
python -m pip install --upgrade --no-cache-dir -I mock==1.0.1 pillow==5.4.1 alabaster>=0.7,<0.8,!=0.7.5 commonmark==0.8.1 recommonmark==0.5.0 sphinx<2 sphinx-rtd-theme<0.5 readthedocs-sphinx-ext<2.2 jinja2<3.1.0 setuptools<58.3.0
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Building wheels for collected packages: mock, future
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  Stored in directory: /tmp/pip-ephem-wheel-cache-1gl923jq/wheels/7a/94/b1/0fdc5339a5bd487a5cc15421ec200d9ba3e2aa7190e4a727f1
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  Stored in directory: /tmp/pip-ephem-wheel-cache-1gl923jq/wheels/56/b0/fe/4410d17b32f1f0c3cf54cdfb2bc04d7b4b8f4ae377e2229ba0
Successfully built mock future
Installing collected packages: snowballstemmer, pytz, mock, certifi, alabaster, urllib3, sphinxcontrib-serializinghtml, six, setuptools, pyparsing, Pygments, pillow, MarkupSafe, imagesize, idna, future, docutils, charset-normalizer, babel, sphinxcontrib-websupport, requests, packaging, jinja2, commonmark, sphinx, readthedocs-sphinx-ext, sphinx-rtd-theme, recommonmark
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
matplotlib 3.3.2 requires pillow>=6.2.0, but you have pillow 5.4.1 which is incompatible.
Successfully installed MarkupSafe-2.1.1 Pygments-2.11.2 alabaster-0.7.12 babel-2.9.1 certifi-2021.10.8 charset-normalizer-2.0.12 commonmark-0.8.1 docutils-0.17.1 future-0.18.2 idna-3.3 imagesize-1.3.0 jinja2-3.0.3 mock-1.0.1 packaging-21.3 pillow-5.4.1 pyparsing-3.0.7 pytz-2022.1 readthedocs-sphinx-ext-2.1.5 recommonmark-0.5.0 requests-2.27.1 setuptools-58.2.0 six-1.16.0 snowballstemmer-2.2.0 sphinx-1.8.6 sphinx-rtd-theme-0.4.3 sphinxcontrib-serializinghtml-1.1.5 sphinxcontrib-websupport-1.2.4 urllib3-1.26.9

[rtd-command-info] start-time: 2022-04-07T19:59:43.009994Z, end-time: 2022-04-07T19:59:47.219062Z, duration: 4, exit-code: 1
python -m pip install --exists-action=w --no-cache-dir -r docs/requirements.txt
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  Preparing metadata (setup.py): started
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  error: subprocess-exited-with-error
  
  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [6 lines of output]
      Traceback (most recent call last):
        File "<string>", line 36, in <module>
        File "<pip-setuptools-caller>", line 34, in <module>
        File "/tmp/pip-install-0ux5igmy/networkit_036dd1939a2444c7a1e6e27746e3e217/setup.py", line 7, in <module>
          from Cython.Build import cythonize
      ModuleNotFoundError: No module named 'Cython'
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.