Read the Docs build information
Build id: 21368
Project: extra-hed
Version: latest
Commit: b546abd4cbbfb6fec093160da717d12206b6ab9d
Date: 2021-02-12T08:07:34.212966Z
State: finished
Success: False


[rtd-command-info] start-time: 2021-02-12T08:07:35.284191Z, end-time: 2021-02-12T08:07:39.475954Z, duration: 4, exit-code: 0
git clone --no-single-branch --depth 50 http://git.xfel.eu/gitlab/tmichela/EXtra-HED .
Cloning into '.'...
warning: redirecting to https://git.xfel.eu/gitlab/tmichela/EXtra-HED.git/

[rtd-command-info] start-time: 2021-02-12T08:07:39.893207Z, end-time: 2021-02-12T08:07:39.977888Z, duration: 0, exit-code: 0
git checkout --force origin/master
Note: checking out '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 performing another checkout.

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

  git checkout -b <new-branch-name>

HEAD is now at b546abd Merge branch 'patch-1' into 'master'

[rtd-command-info] start-time: 2021-02-12T08:07:40.110399Z, end-time: 2021-02-12T08:07:40.183462Z, duration: 0, exit-code: 0
git clean -d -f -f


[rtd-command-info] start-time: 2021-02-12T08:07:41.460514Z, end-time: 2021-02-12T08:07:46.645997Z, duration: 5, exit-code: 0
python3.7 -mvirtualenv /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest
Using base prefix '/home/docs/.pyenv/versions/3.7.3'
New python executable in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/bin/python3.7
Also creating executable in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/bin/python
Installing setuptools, pip, wheel...
done.

[rtd-command-info] start-time: 2021-02-12T08:07:46.788510Z, end-time: 2021-02-12T08:07:47.858470Z, duration: 1, exit-code: 0
/usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/bin/python -m pip install --upgrade --no-cache-dir pip
Requirement already satisfied: pip in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (21.0.1)

[rtd-command-info] start-time: 2021-02-12T08:07:47.991217Z, end-time: 2021-02-12T08:08:00.015837Z, duration: 12, exit-code: 0
/usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/bin/python -m pip install --upgrade --no-cache-dir Pygments==2.3.1 setuptools==41.0.1 docutils==0.14 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<1.1
Collecting Pygments==2.3.1
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Collecting babel!=2.0,>=1.3
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Collecting packaging
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Collecting six>=1.5
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Collecting pyparsing>=2.0.2
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Collecting sphinxcontrib-serializinghtml
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Building wheels for collected packages: mock, future
  Building wheel for mock (setup.py): started
  Building wheel for mock (setup.py): finished with status 'done'
  Created wheel for mock: filename=mock-1.0.1-py3-none-any.whl size=23755 sha256=9ca2064741ebd05c5e3a7caf28d4ae5a1b9f0b8025bde24034c8d820e95b05cf
  Stored in directory: /tmp/pip-ephem-wheel-cache-5s241o98/wheels/7a/94/b1/0fdc5339a5bd487a5cc15421ec200d9ba3e2aa7190e4a727f1
  Building wheel for future (setup.py): started
  Building wheel for future (setup.py): finished with status 'done'
  Created wheel for future: filename=future-0.18.2-py3-none-any.whl size=491059 sha256=fb65ac8b7f6ca8b51561a7a31952d217861ad1ff47ae2e0514ddaad7c585c761
  Stored in directory: /tmp/pip-ephem-wheel-cache-5s241o98/wheels/56/b0/fe/4410d17b32f1f0c3cf54cdfb2bc04d7b4b8f4ae377e2229ba0
Successfully built mock future
Installing collected packages: urllib3, sphinxcontrib-serializinghtml, pytz, pyparsing, MarkupSafe, idna, chardet, certifi, sphinxcontrib-websupport, snowballstemmer, six, setuptools, requests, Pygments, packaging, Jinja2, imagesize, future, docutils, babel, alabaster, sphinx, commonmark, sphinx-rtd-theme, recommonmark, readthedocs-sphinx-ext, pillow, mock
  Attempting uninstall: setuptools
    Found existing installation: setuptools 53.0.0
    Uninstalling setuptools-53.0.0:
      Successfully uninstalled setuptools-53.0.0
Successfully installed Jinja2-2.11.3 MarkupSafe-1.1.1 Pygments-2.3.1 alabaster-0.7.12 babel-2.9.0 certifi-2020.12.5 chardet-4.0.0 commonmark-0.8.1 docutils-0.14 future-0.18.2 idna-2.10 imagesize-1.2.0 mock-1.0.1 packaging-20.9 pillow-5.4.1 pyparsing-2.4.7 pytz-2021.1 readthedocs-sphinx-ext-1.0.4 recommonmark-0.5.0 requests-2.25.1 setuptools-41.0.1 six-1.15.0 snowballstemmer-2.1.0 sphinx-1.8.5 sphinx-rtd-theme-0.4.3 sphinxcontrib-serializinghtml-1.1.4 sphinxcontrib-websupport-1.2.4 urllib3-1.26.3

[rtd-command-info] start-time: 2021-02-12T08:08:00.154188Z, end-time: 2021-02-12T08:08:57.927753Z, duration: 57, exit-code: 1
/usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/bin/python -m pip install --exists-action=w --no-cache-dir -r docs/requirements.txt
Collecting git+https://git.xfel.eu/gitlab/xfel-rtd/rtd-conf.git (from -r docs/requirements.txt (line 6))
  Cloning https://git.xfel.eu/gitlab/xfel-rtd/rtd-conf.git to /tmp/pip-req-build-nkvjboaf
  Running command git clone -q https://git.xfel.eu/gitlab/xfel-rtd/rtd-conf.git /tmp/pip-req-build-nkvjboaf
Requirement already satisfied: sphinx>=1.8 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from -r docs/requirements.txt (line 1)) (1.8.5)
Requirement already satisfied: sphinx_rtd_theme in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from -r docs/requirements.txt (line 2)) (0.4.3)
Collecting nbsphinx
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Collecting pandoc
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Collecting pint
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Collecting slumber
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Collecting breathe==4.7.3
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Collecting numpy
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Collecting matplotlib
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Collecting typing
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Collecting traits==4.6.0
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Collecting lxml==3.6.4
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Collecting scipy
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Requirement already satisfied: six>=1.4 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from breathe==4.7.3->-r docs/requirements.txt (line 8)) (1.15.0)
Requirement already satisfied: docutils>=0.5 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from breathe==4.7.3->-r docs/requirements.txt (line 8)) (0.14)
Requirement already satisfied: babel!=2.0,>=1.3 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (2.9.0)
Requirement already satisfied: setuptools in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (41.0.1)
Requirement already satisfied: packaging in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (20.9)
Requirement already satisfied: imagesize in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (1.2.0)
Requirement already satisfied: sphinxcontrib-websupport in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (1.2.4)
Requirement already satisfied: Jinja2>=2.3 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (2.11.3)
Requirement already satisfied: snowballstemmer>=1.1 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (2.1.0)
Requirement already satisfied: Pygments>=2.0 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (2.3.1)
Requirement already satisfied: requests>=2.0.0 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (2.25.1)
Requirement already satisfied: alabaster<0.8,>=0.7 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinx>=1.8->-r docs/requirements.txt (line 1)) (0.7.12)
Requirement already satisfied: pytz>=2015.7 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from babel!=2.0,>=1.3->sphinx>=1.8->-r docs/requirements.txt (line 1)) (2021.1)
Requirement already satisfied: MarkupSafe>=0.23 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from Jinja2>=2.3->sphinx>=1.8->-r docs/requirements.txt (line 1)) (1.1.1)
Requirement already satisfied: idna<3,>=2.5 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from requests>=2.0.0->sphinx>=1.8->-r docs/requirements.txt (line 1)) (2.10)
Requirement already satisfied: chardet<5,>=3.0.2 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from requests>=2.0.0->sphinx>=1.8->-r docs/requirements.txt (line 1)) (4.0.0)
Requirement already satisfied: certifi>=2017.4.17 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from requests>=2.0.0->sphinx>=1.8->-r docs/requirements.txt (line 1)) (2020.12.5)
Requirement already satisfied: urllib3<1.27,>=1.21.1 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from requests>=2.0.0->sphinx>=1.8->-r docs/requirements.txt (line 1)) (1.26.3)
Collecting python-dateutil>=2.1
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Requirement already satisfied: pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.3 in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from matplotlib->-r docs/requirements.txt (line 10)) (2.4.7)
Collecting pillow>=6.2.0
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Collecting pandocfilters>=1.4.1
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Collecting zipp>=0.5
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Collecting typing-extensions>=3.6.4
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Requirement already satisfied: sphinxcontrib-serializinghtml in /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/lib/python3.7/site-packages (from sphinxcontrib-websupport->sphinx>=1.8->-r docs/requirements.txt (line 1)) (1.1.4)
Building wheels for collected packages: RTDConf, lxml, traits, pandocfilters, pyrsistent, pandoc, slumber, typing
  Building wheel for RTDConf (setup.py): started
  Building wheel for RTDConf (setup.py): finished with status 'done'
  Created wheel for RTDConf: filename=RTDConf-0.1-py3-none-any.whl size=2667 sha256=8f62cdf7cd21af302895aefc1cf3b2136729685f6af3c5cd74e183cf5036d579
  Stored in directory: /tmp/pip-ephem-wheel-cache-_29dvnn1/wheels/17/a3/d4/e42b943fdbccc9aa92ab080ea1739cd6987c6c6d000fb359e4
  Building wheel for lxml (setup.py): started
  Building wheel for lxml (setup.py): finished with status 'error'
  ERROR: Command errored out with exit status 1:
   command: /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-6avzq6oo/lxml_eb616e67cb6749b29b9ffbf9255c53f2/setup.py'"'"'; __file__='"'"'/tmp/pip-install-6avzq6oo/lxml_eb616e67cb6749b29b9ffbf9255c53f2/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-f9oezfyy
       cwd: /tmp/pip-install-6avzq6oo/lxml_eb616e67cb6749b29b9ffbf9255c53f2/
  Complete output (170 lines):
  Building lxml version 3.6.4.
  Building without Cython.
  Using build configuration of libxslt 1.1.29
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-3.7
  creating build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/sax.py -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/__init__.py -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/pyclasslookup.py -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/builder.py -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/_elementpath.py -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/cssselect.py -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/ElementInclude.py -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/usedoctest.py -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/doctestcompare.py -> build/lib.linux-x86_64-3.7/lxml
  creating build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/__init__.py -> build/lib.linux-x86_64-3.7/lxml/includes
  creating build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/__init__.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/formfill.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/clean.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/builder.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/_diffcommand.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/html5parser.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/ElementSoup.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/soupparser.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/diff.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/defs.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/_setmixin.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/_html5builder.py -> build/lib.linux-x86_64-3.7/lxml/html
  copying src/lxml/html/usedoctest.py -> build/lib.linux-x86_64-3.7/lxml/html
  creating build/lib.linux-x86_64-3.7/lxml/isoschematron
  copying src/lxml/isoschematron/__init__.py -> build/lib.linux-x86_64-3.7/lxml/isoschematron
  copying src/lxml/lxml.etree.h -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/lxml.etree_api.h -> build/lib.linux-x86_64-3.7/lxml
  copying src/lxml/includes/xmlparser.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/dtdvalid.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/htmlparser.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/xslt.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/schematron.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/relaxng.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/xmlerror.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/tree.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/uri.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/etreepublic.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/c14n.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/config.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/xpath.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/xinclude.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/xmlschema.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/lxml-version.h -> build/lib.linux-x86_64-3.7/lxml/includes
  copying src/lxml/includes/etree_defs.h -> build/lib.linux-x86_64-3.7/lxml/includes
  creating build/lib.linux-x86_64-3.7/lxml/isoschematron/resources
  creating build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/rng
  copying src/lxml/isoschematron/resources/rng/iso-schematron.rng -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/rng
  creating build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl
  copying src/lxml/isoschematron/resources/xsl/XSD2Schtrn.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl
  copying src/lxml/isoschematron/resources/xsl/RNG2Schtrn.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl
  creating build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_dsdl_include.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_abstract_expand.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_message.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_svrl_for_xslt1.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_skeleton_for_xslt1.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
  running build_ext
  building 'lxml.etree' extension
  creating build/temp.linux-x86_64-3.7
  creating build/temp.linux-x86_64-3.7/src
  creating build/temp.linux-x86_64-3.7/src/lxml
  gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/usr/include/libxml2 -Isrc/lxml/includes -I/home/docs/.pyenv/versions/3.7.3/include/python3.7m -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-3.7/src/lxml/lxml.etree.o -w
  src/lxml/lxml.etree.c: In function ‘__Pyx_ExceptionSave’:
  src/lxml/lxml.etree.c:221065:21: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
       *type = tstate->exc_type;
                       ^~~~~~~~
                       curexc_type
  src/lxml/lxml.etree.c:221066:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
       *value = tstate->exc_value;
                        ^~~~~~~~~
                        curexc_value
  src/lxml/lxml.etree.c:221067:19: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
       *tb = tstate->exc_traceback;
                     ^~~~~~~~~~~~~
                     curexc_traceback
  src/lxml/lxml.etree.c: In function ‘__Pyx_ExceptionReset’:
  src/lxml/lxml.etree.c:221079:24: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
       tmp_type = tstate->exc_type;
                          ^~~~~~~~
                          curexc_type
  src/lxml/lxml.etree.c:221080:25: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
       tmp_value = tstate->exc_value;
                           ^~~~~~~~~
                           curexc_value
  src/lxml/lxml.etree.c:221081:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
       tmp_tb = tstate->exc_traceback;
                        ^~~~~~~~~~~~~
                        curexc_traceback
  src/lxml/lxml.etree.c:221082:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
       tstate->exc_type = type;
               ^~~~~~~~
               curexc_type
  src/lxml/lxml.etree.c:221083:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
       tstate->exc_value = value;
               ^~~~~~~~~
               curexc_value
  src/lxml/lxml.etree.c:221084:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
       tstate->exc_traceback = tb;
               ^~~~~~~~~~~~~
               curexc_traceback
  src/lxml/lxml.etree.c: In function ‘__Pyx_GetException’:
  src/lxml/lxml.etree.c:221127:24: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
       tmp_type = tstate->exc_type;
                          ^~~~~~~~
                          curexc_type
  src/lxml/lxml.etree.c:221128:25: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
       tmp_value = tstate->exc_value;
                           ^~~~~~~~~
                           curexc_value
  src/lxml/lxml.etree.c:221129:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
       tmp_tb = tstate->exc_traceback;
                        ^~~~~~~~~~~~~
                        curexc_traceback
  src/lxml/lxml.etree.c:221130:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
       tstate->exc_type = local_type;
               ^~~~~~~~
               curexc_type
  src/lxml/lxml.etree.c:221131:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
       tstate->exc_value = local_value;
               ^~~~~~~~~
               curexc_value
  src/lxml/lxml.etree.c:221132:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
       tstate->exc_traceback = local_tb;
               ^~~~~~~~~~~~~
               curexc_traceback
  src/lxml/lxml.etree.c: In function ‘__Pyx_ExceptionSwap’:
  src/lxml/lxml.etree.c:221441:24: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
       tmp_type = tstate->exc_type;
                          ^~~~~~~~
                          curexc_type
  src/lxml/lxml.etree.c:221442:25: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
       tmp_value = tstate->exc_value;
                           ^~~~~~~~~
                           curexc_value
  src/lxml/lxml.etree.c:221443:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
       tmp_tb = tstate->exc_traceback;
                        ^~~~~~~~~~~~~
                        curexc_traceback
  src/lxml/lxml.etree.c:221444:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
       tstate->exc_type = *type;
               ^~~~~~~~
               curexc_type
  src/lxml/lxml.etree.c:221445:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
       tstate->exc_value = *value;
               ^~~~~~~~~
               curexc_value
  src/lxml/lxml.etree.c:221446:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
       tstate->exc_traceback = *tb;
               ^~~~~~~~~~~~~
               curexc_traceback
  Compile failed: command 'gcc' failed with exit status 1
  creating tmp
  cc -I/usr/include/libxml2 -I/usr/include/libxml2 -c /tmp/xmlXPathInit3780m4tj.c -o tmp/xmlXPathInit3780m4tj.o
  /tmp/xmlXPathInit3780m4tj.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
   main (int argc, char **argv) {
   ^~~~
  cc tmp/xmlXPathInit3780m4tj.o -lxml2 -o a.out
  error: command 'gcc' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for lxml
  Running setup.py clean for lxml
  Building wheel for traits (setup.py): started
  Building wheel for traits (setup.py): finished with status 'done'
  Created wheel for traits: filename=traits-4.6.0-cp37-cp37m-linux_x86_64.whl size=363926 sha256=abe2b319bb285da73133763619d2bea660d772e2ff4cb72c9be0f72812c1b684
  Stored in directory: /tmp/pip-ephem-wheel-cache-_29dvnn1/wheels/fd/b6/5a/f38aeaf6a768958f70ccd537ce3e1af67667d1f428dbd8e578
  Building wheel for pandocfilters (setup.py): started
  Building wheel for pandocfilters (setup.py): finished with status 'done'
  Created wheel for pandocfilters: filename=pandocfilters-1.4.3-py3-none-any.whl size=7992 sha256=d1ee9ba153d0c3646353b18a98e813daffc56abc662e7c547e1f820f9ca3f165
  Stored in directory: /tmp/pip-ephem-wheel-cache-_29dvnn1/wheels/42/81/34/545dc2fbf0e9137811e901108d37fc04650e81d48f97078000
  Building wheel for pyrsistent (setup.py): started
  Building wheel for pyrsistent (setup.py): finished with status 'done'
  Created wheel for pyrsistent: filename=pyrsistent-0.17.3-cp37-cp37m-linux_x86_64.whl size=115331 sha256=693f88827b60e2f45180b5f2c859b3ff8cfb83a78a74c794102ceca269fb6f0d
  Stored in directory: /tmp/pip-ephem-wheel-cache-_29dvnn1/wheels/a5/52/bf/71258a1d7b3c8cbe1ee53f9314c6f65f20385481eaee573cc5
  Building wheel for pandoc (setup.py): started
  Building wheel for pandoc (setup.py): finished with status 'done'
  Created wheel for pandoc: filename=pandoc-1.0.2-py3-none-any.whl size=19992 sha256=31dbe5a9164c389932b1f7db927ea7f7360314adea27eab1b200d3d2f50af133
  Stored in directory: /tmp/pip-ephem-wheel-cache-_29dvnn1/wheels/80/43/26/b24b4f9523170eb4f7de84f914c640da353c74b3197edc22e6
  Building wheel for slumber (setup.py): started
  Building wheel for slumber (setup.py): finished with status 'done'
  Created wheel for slumber: filename=slumber-0.7.1-py3-none-any.whl size=8098 sha256=73185bc95aa7fcd1f84955a4adc821966872f2cf29995a682a67ced70da0990f
  Stored in directory: /tmp/pip-ephem-wheel-cache-_29dvnn1/wheels/eb/d6/67/f165e383ef89df4d90f29343f2e120543adc1886663e9f139b
  Building wheel for typing (setup.py): started
  Building wheel for typing (setup.py): finished with status 'done'
  Created wheel for typing: filename=typing-3.7.4.3-py3-none-any.whl size=26308 sha256=5c530d3478c63be8e47de43222f3715e634e67688886c8f73bb9b6c8d6164ded
  Stored in directory: /tmp/pip-ephem-wheel-cache-_29dvnn1/wheels/35/f3/15/01aa6571f0a72ee6ae7b827c1491c37a1f72d686fd22b43b0e
Successfully built RTDConf traits pandocfilters pyrsistent pandoc slumber typing
Failed to build lxml
Installing collected packages: zipp, typing-extensions, ipython-genutils, traitlets, pyrsistent, importlib-metadata, attrs, tornado, pyzmq, python-dateutil, jupyter-core, jsonschema, webencodings, Pygments, nest-asyncio, nbformat, jupyter-client, async-generator, testpath, pandocfilters, nbclient, mistune, jupyterlab-pygments, entrypoints, defusedxml, bleach, ply, pillow, numpy, nbconvert, kiwisolver, cycler, typing, traits, slumber, scipy, RTDConf, pint, pandoc, nbsphinx, matplotlib, lxml, breathe
  Attempting uninstall: Pygments
    Found existing installation: Pygments 2.3.1
    Uninstalling Pygments-2.3.1:
      Successfully uninstalled Pygments-2.3.1
  Attempting uninstall: pillow
    Found existing installation: Pillow 5.4.1
    Uninstalling Pillow-5.4.1:
      Successfully uninstalled Pillow-5.4.1
    Running setup.py install for lxml: started
    Running setup.py install for lxml: finished with status 'error'
    ERROR: Command errored out with exit status 1:
     command: /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-6avzq6oo/lxml_eb616e67cb6749b29b9ffbf9255c53f2/setup.py'"'"'; __file__='"'"'/tmp/pip-install-6avzq6oo/lxml_eb616e67cb6749b29b9ffbf9255c53f2/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-soqdw_8i/install-record.txt --single-version-externally-managed --compile --install-headers /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/include/site/python3.7/lxml
         cwd: /tmp/pip-install-6avzq6oo/lxml_eb616e67cb6749b29b9ffbf9255c53f2/
    Complete output (169 lines):
    Building lxml version 3.6.4.
    Building without Cython.
    Using build configuration of libxslt 1.1.29
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-3.7
    creating build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/sax.py -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/__init__.py -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/pyclasslookup.py -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/builder.py -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/_elementpath.py -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/cssselect.py -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/ElementInclude.py -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/usedoctest.py -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/doctestcompare.py -> build/lib.linux-x86_64-3.7/lxml
    creating build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/__init__.py -> build/lib.linux-x86_64-3.7/lxml/includes
    creating build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/__init__.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/formfill.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/clean.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/builder.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/_diffcommand.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/html5parser.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/ElementSoup.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/soupparser.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/diff.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/defs.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/_setmixin.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/_html5builder.py -> build/lib.linux-x86_64-3.7/lxml/html
    copying src/lxml/html/usedoctest.py -> build/lib.linux-x86_64-3.7/lxml/html
    creating build/lib.linux-x86_64-3.7/lxml/isoschematron
    copying src/lxml/isoschematron/__init__.py -> build/lib.linux-x86_64-3.7/lxml/isoschematron
    copying src/lxml/lxml.etree.h -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/lxml.etree_api.h -> build/lib.linux-x86_64-3.7/lxml
    copying src/lxml/includes/xmlparser.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/dtdvalid.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/htmlparser.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/xslt.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/schematron.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/relaxng.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/xmlerror.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/tree.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/uri.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/etreepublic.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/c14n.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/config.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/xpath.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/xinclude.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/xmlschema.pxd -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/lxml-version.h -> build/lib.linux-x86_64-3.7/lxml/includes
    copying src/lxml/includes/etree_defs.h -> build/lib.linux-x86_64-3.7/lxml/includes
    creating build/lib.linux-x86_64-3.7/lxml/isoschematron/resources
    creating build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/rng
    copying src/lxml/isoschematron/resources/rng/iso-schematron.rng -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/rng
    creating build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl
    copying src/lxml/isoschematron/resources/xsl/XSD2Schtrn.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl
    copying src/lxml/isoschematron/resources/xsl/RNG2Schtrn.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl
    creating build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
    copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_dsdl_include.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
    copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_abstract_expand.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
    copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_message.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
    copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_svrl_for_xslt1.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
    copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_skeleton_for_xslt1.xsl -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
    copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt -> build/lib.linux-x86_64-3.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
    running build_ext
    building 'lxml.etree' extension
    creating build/temp.linux-x86_64-3.7
    creating build/temp.linux-x86_64-3.7/src
    creating build/temp.linux-x86_64-3.7/src/lxml
    gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/usr/include/libxml2 -Isrc/lxml/includes -I/home/docs/.pyenv/versions/3.7.3/include/python3.7m -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-3.7/src/lxml/lxml.etree.o -w
    src/lxml/lxml.etree.c: In function ‘__Pyx_ExceptionSave’:
    src/lxml/lxml.etree.c:221065:21: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
         *type = tstate->exc_type;
                         ^~~~~~~~
                         curexc_type
    src/lxml/lxml.etree.c:221066:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
         *value = tstate->exc_value;
                          ^~~~~~~~~
                          curexc_value
    src/lxml/lxml.etree.c:221067:19: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
         *tb = tstate->exc_traceback;
                       ^~~~~~~~~~~~~
                       curexc_traceback
    src/lxml/lxml.etree.c: In function ‘__Pyx_ExceptionReset’:
    src/lxml/lxml.etree.c:221079:24: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
         tmp_type = tstate->exc_type;
                            ^~~~~~~~
                            curexc_type
    src/lxml/lxml.etree.c:221080:25: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
         tmp_value = tstate->exc_value;
                             ^~~~~~~~~
                             curexc_value
    src/lxml/lxml.etree.c:221081:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
         tmp_tb = tstate->exc_traceback;
                          ^~~~~~~~~~~~~
                          curexc_traceback
    src/lxml/lxml.etree.c:221082:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
         tstate->exc_type = type;
                 ^~~~~~~~
                 curexc_type
    src/lxml/lxml.etree.c:221083:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
         tstate->exc_value = value;
                 ^~~~~~~~~
                 curexc_value
    src/lxml/lxml.etree.c:221084:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
         tstate->exc_traceback = tb;
                 ^~~~~~~~~~~~~
                 curexc_traceback
    src/lxml/lxml.etree.c: In function ‘__Pyx_GetException’:
    src/lxml/lxml.etree.c:221127:24: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
         tmp_type = tstate->exc_type;
                            ^~~~~~~~
                            curexc_type
    src/lxml/lxml.etree.c:221128:25: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
         tmp_value = tstate->exc_value;
                             ^~~~~~~~~
                             curexc_value
    src/lxml/lxml.etree.c:221129:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
         tmp_tb = tstate->exc_traceback;
                          ^~~~~~~~~~~~~
                          curexc_traceback
    src/lxml/lxml.etree.c:221130:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
         tstate->exc_type = local_type;
                 ^~~~~~~~
                 curexc_type
    src/lxml/lxml.etree.c:221131:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
         tstate->exc_value = local_value;
                 ^~~~~~~~~
                 curexc_value
    src/lxml/lxml.etree.c:221132:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
         tstate->exc_traceback = local_tb;
                 ^~~~~~~~~~~~~
                 curexc_traceback
    src/lxml/lxml.etree.c: In function ‘__Pyx_ExceptionSwap’:
    src/lxml/lxml.etree.c:221441:24: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
         tmp_type = tstate->exc_type;
                            ^~~~~~~~
                            curexc_type
    src/lxml/lxml.etree.c:221442:25: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
         tmp_value = tstate->exc_value;
                             ^~~~~~~~~
                             curexc_value
    src/lxml/lxml.etree.c:221443:22: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
         tmp_tb = tstate->exc_traceback;
                          ^~~~~~~~~~~~~
                          curexc_traceback
    src/lxml/lxml.etree.c:221444:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_type’; did you mean ‘curexc_type’?
         tstate->exc_type = *type;
                 ^~~~~~~~
                 curexc_type
    src/lxml/lxml.etree.c:221445:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_value’; did you mean ‘curexc_value’?
         tstate->exc_value = *value;
                 ^~~~~~~~~
                 curexc_value
    src/lxml/lxml.etree.c:221446:13: error: ‘PyThreadState {aka struct _ts}’ has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
         tstate->exc_traceback = *tb;
                 ^~~~~~~~~~~~~
                 curexc_traceback
    Compile failed: command 'gcc' failed with exit status 1
    cc -I/usr/include/libxml2 -I/usr/include/libxml2 -c /tmp/xmlXPathInitiywwgkdr.c -o tmp/xmlXPathInitiywwgkdr.o
    /tmp/xmlXPathInitiywwgkdr.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
     main (int argc, char **argv) {
     ^~~~
    cc tmp/xmlXPathInitiywwgkdr.o -lxml2 -o a.out
    error: command 'gcc' failed with exit status 1
    ----------------------------------------
ERROR: Command errored out with exit status 1: /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-6avzq6oo/lxml_eb616e67cb6749b29b9ffbf9255c53f2/setup.py'"'"'; __file__='"'"'/tmp/pip-install-6avzq6oo/lxml_eb616e67cb6749b29b9ffbf9255c53f2/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-soqdw_8i/install-record.txt --single-version-externally-managed --compile --install-headers /usr/src/app/checkouts/readthedocs.org/user_builds/extra-hed/envs/latest/include/site/python3.7/lxml Check the logs for full command output.