Read the Docs build information
Build id: 3945144
Project: canonical-starflow
Version: 130
Commit: 19ce74e631f0b2cf1390158ef4a412390a04da42
Date: 2026-04-21T02:31:28.261774Z
State: finished
Success: False


[rtd-command-info] start-time: 2026-04-21T02:31:31.982819Z, end-time: 2026-04-21T02:31:33.349997Z, duration: 1, exit-code: 0
git clone --depth 1 https://github.com/canonical/starflow .
Cloning into '.'...

[rtd-command-info] start-time: 2026-04-21T02:31:33.430903Z, end-time: 2026-04-21T02:31:33.920061Z, duration: 0, exit-code: 0
git fetch origin --force --prune --prune-tags --depth 50 pull/130/head:external-130
From https://github.com/canonical/starflow
 * [new ref]         refs/pull/130/head -> external-130

[rtd-command-info] start-time: 2026-04-21T02:31:34.661049Z, end-time: 2026-04-21T02:31:34.704768Z, duration: 0, exit-code: 0
git checkout --force 19ce74e631f0b2cf1390158ef4a412390a04da42
Note: switching to '19ce74e631f0b2cf1390158ef4a412390a04da42'.

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 19ce74e ci: skip full linter and test suite for docs-only changes

[rtd-command-info] start-time: 2026-04-21T02:31:34.789222Z, end-time: 2026-04-21T02:31:34.852114Z, duration: 0, exit-code: 0
cat .readthedocs.yaml
# .readthedocs.yaml
# Read the Docs configuration file
# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details

# Required
version: 2

# Build documentation in the docs/ directory with Sphinx
sphinx:
  builder: dirhtml
  configuration: docs/conf.py
  fail_on_warning: true

# Optionally build your docs in additional formats such as PDF
# formats:
#  - pdf
#  - epub

build:
  os: ubuntu-24.04
  tools:
    python: "3.12"
  jobs:
    #post_checkout:
    #  - git fetch --tags --unshallow # Also fetch tags
    #  - git describe # Make sure we get a proper version
    post_system_dependencies:
      - asdf plugin add uv
      - asdf install uv latest
      - asdf global uv latest
    create_environment:
      - uv venv "${READTHEDOCS_VIRTUALENV_PATH}"
    install:
      - make setup-docs UV_PROJECT_ENVIRONMENT="${READTHEDOCS_VIRTUALENV_PATH}"
    build:
      html:
        - make docs UV_PROJECT_ENVIRONMENT="${READTHEDOCS_VIRTUALENV_PATH}" DOCS_OUTPUT="$READTHEDOCS_OUTPUT/html/"

[rtd-command-info] start-time: 2026-04-21T02:31:37.945136Z, end-time: 2026-04-21T02:31:40.885447Z, duration: 2, exit-code: 0
asdf plugin add uv
updating plugin repository...From https://github.com/asdf-vm/asdf-plugins
   8e311ee..c0369a1  master     -> origin/master
 * [new branch]      dependabot/github_actions/actions/checkout-6 -> origin/dependabot/github_actions/actions/checkout-6
 * [new branch]      dependabot/github_actions/amannn/action-semantic-pull-request-6.1.1 -> origin/dependabot/github_actions/amannn/action-semantic-pull-request-6.1.1
 * [new branch]      dependabot/github_actions/asdf-vm/actions-4 -> origin/dependabot/github_actions/asdf-vm/actions-4
HEAD is now at c0369a1 feat: add yasm plugin (#1087)

[rtd-command-info] start-time: 2026-04-21T02:31:40.964685Z, end-time: 2026-04-21T02:31:42.422796Z, duration: 1, exit-code: 0
asdf install uv latest
redirect url: https://github.com/astral-sh/uv/releases/tag/0.11.7
* Downloading uv release 0.11.7...
uv 0.11.7 installation was successful!

[rtd-command-info] start-time: 2026-04-21T02:31:42.515716Z, end-time: 2026-04-21T02:31:42.619238Z, duration: 0, exit-code: 0
asdf global uv latest
redirect url: https://github.com/astral-sh/uv/releases/tag/0.11.7

[rtd-command-info] start-time: 2026-04-21T02:31:49.687659Z, end-time: 2026-04-21T02:31:49.743886Z, duration: 0, exit-code: 0
asdf global python 3.12.10


[rtd-command-info] start-time: 2026-04-21T02:31:50.168837Z, end-time: 2026-04-21T02:31:50.533478Z, duration: 0, exit-code: 0
uv venv "${READTHEDOCS_VIRTUALENV_PATH}"
Using CPython 3.12.10 interpreter at: /home/docs/.asdf/installs/python/3.12.10/bin/python3
Creating virtual environment at: /home/docs/checkouts/readthedocs.org/user_builds/canonical-starflow/envs/130

[rtd-command-info] start-time: 2026-04-21T02:31:50.608417Z, end-time: 2026-04-21T02:31:52.052488Z, duration: 1, exit-code: 0
make setup-docs UV_PROJECT_ENVIRONMENT="${READTHEDOCS_VIRTUALENV_PATH}"
uv sync --no-dev "--group=docs"
Resolved 67 packages in 0.83ms
Downloading babel (9.7MiB)
Downloading pygments (1.2MiB)
Downloading sphinx-design (2.1MiB)
Downloading accessible-pygments (1.3MiB)
Downloading setuptools (1.1MiB)
Downloading sphinx (3.2MiB)
   Building rst2html==2020.7.4
 Downloaded accessible-pygments
 Downloaded sphinx-design
 Downloaded pygments
 Downloaded setuptools
 Downloaded sphinx
 Downloaded babel
      Built rst2html==2020.7.4
Prepared 62 packages in 916ms
warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
         If the cache and target directories are on different filesystems, hardlinking may not be supported.
         If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.
Installed 62 packages in 291ms
 + accessible-pygments==0.0.5
 + alabaster==0.7.16
 + anyio==4.12.1
 + babel==2.18.0
 + beautifulsoup4==4.14.3
 + canonical-sphinx==0.6.0
 + certifi==2026.2.25
 + charset-normalizer==3.4.6
 + click==8.3.1
 + colorama==0.4.6
 + distro==1.9.0
 + docutils==0.21.2
 + furo==2025.12.19
 + h11==0.16.0
 + idna==3.11
 + imagesize==2.0.0
 + jinja2==3.1.6
 + linkify-it-py==2.1.0
 + markdown-it-py==3.0.0
 + markupsafe==3.0.3
 + mdit-py-plugins==0.5.0
 + mdurl==0.1.2
 + myst-parser==4.0.1
 + packaging==26.0
 + polib==1.2.0
 + pygments==2.20.0
 + pyyaml==6.0.3
 + regex==2026.2.28
 + requests==2.33.0
 + rst2html==2020.7.4
 + setuptools==80.8.0
 + snowballstemmer==3.0.1
 + soupsieve==2.8.3
 + sphinx==7.4.7
 + sphinx-autobuild==2025.8.25
 + sphinx-basic-ng==1.0.0b2
 + sphinx-copybutton==0.5.2
 + sphinx-design==0.7.0
 + sphinx-last-updated-by-git==0.3.8
 + sphinx-lint==1.0.2
 + sphinx-notfound-page==1.1.0
 + sphinx-related-links==0.1.2
 + sphinx-roles==0.1.0
 + sphinx-sitemap==2.9.0
 + sphinx-terminal==1.0.3
 + sphinxcontrib-applehelp==2.0.0
 + sphinxcontrib-devhelp==2.0.0
 + sphinxcontrib-htmlhelp==2.1.0
 + sphinxcontrib-jquery==4.1
 + sphinxcontrib-jsmath==1.0.1
 + sphinxcontrib-qthelp==2.0.0
 + sphinxcontrib-serializinghtml==2.0.0
 + sphinxext-opengraph==0.13.0
 + sphinxext-rediraffe==0.3.0
 + starlette==0.52.1
 + typing-extensions==4.15.0
 + uc-micro-py==2.0.0
 + urllib3==2.6.3
 + uvicorn==0.42.0
 + vale==3.13.0.0
 + watchfiles==1.1.1
 + websockets==16.0

[rtd-command-info] start-time: 2026-04-21T02:31:52.182448Z, end-time: 2026-04-21T02:32:11.016517Z, duration: 18, exit-code: 2
make docs UV_PROJECT_ENVIRONMENT="${READTHEDOCS_VIRTUALENV_PATH}" DOCS_OUTPUT="$READTHEDOCS_OUTPUT/html/"
uv sync --no-dev "--group=docs"
Resolved 67 packages in 0.78ms
Checked 62 packages in 1ms
make -C docs vale-install --no-print-directory
... setting up virtualenv
python3 -m venv ../.venv || { echo "You must install python3-venv before you can build the documentation."; exit 1; }
. ../.venv/bin/activate; pip install  --require-virtualenv \
    --upgrade -r requirements.txt \
            --log ../.venv/pip_install.log
Collecting canonical-sphinx~=0.6 (from -r requirements.txt (line 2))
  Downloading canonical_sphinx-0.6.0-py3-none-any.whl.metadata (5.8 kB)
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  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'done'
  Preparing metadata (pyproject.toml): started
  Preparing metadata (pyproject.toml): finished with status 'done'
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Building wheels for collected packages: rst2html
  Building wheel for rst2html (pyproject.toml): started
  Building wheel for rst2html (pyproject.toml): finished with status 'done'
  Created wheel for rst2html: filename=rst2html-2020.7.4-py3-none-any.whl size=1472 sha256=099fc0c9c14aa61e5fcb05c95f3018718e8c557775ae36e091da2584950bf75d
  Stored in directory: /home/docs/.cache/pip/wheels/42/d2/79/966342e0075434bbb9c048f243a20a051299b9801097251222
Successfully built rst2html
Installing collected packages: webencodings, websockets, vale, urllib3, uc-micro-py, typing-extensions, tinycss2, sphinxcontrib-serializinghtml, sphinxcontrib-qthelp, sphinxcontrib-jsmath, sphinxcontrib-htmlhelp, sphinxcontrib-devhelp, sphinxcontrib-applehelp, soupsieve, snowballstemmer, smmap, pyyaml, pygments, pycparser, pillow, packaging, mdurl, MarkupSafe, imagesize, idna, h11, docutils, defusedxml, colorama, click, charset_normalizer, certifi, babel, alabaster, uvicorn, rst2html, requests, markdown-it-py, linkify-it-py, jinja2, gitdb, cssselect2, cffi, beautifulsoup4, anyio, accessible-pygments, watchfiles, starlette, Sphinx, mdit-py-plugins, GitPython, cairocffi, sphinxext-opengraph, sphinxcontrib-svg2pdfconverter, sphinxcontrib-jquery, sphinx-youtube-links, sphinx-ubuntu-images, sphinx-tabs, sphinx-roles, sphinx-reredirects, sphinx-related-links, sphinx-notfound-page, sphinx-last-updated-by-git, sphinx-filtered-toctree, sphinx-design, sphinx-copybutton, sphinx-contributor-listing, sphinx-config-options, sphinx-basic-ng, sphinx-autobuild, myst-parser, cairosvg, sphinx-terminal, sphinx-sitemap, furo, canonical-sphinx
Successfully installed GitPython-3.1.46 MarkupSafe-3.0.3 Sphinx-7.4.7 accessible-pygments-0.0.5 alabaster-0.7.16 anyio-4.13.0 babel-2.18.0 beautifulsoup4-4.14.3 cairocffi-1.7.1 cairosvg-2.9.0 canonical-sphinx-0.6.0 certifi-2026.2.25 cffi-2.0.0 charset_normalizer-3.4.7 click-8.3.2 colorama-0.4.6 cssselect2-0.9.0 defusedxml-0.7.1 docutils-0.21.2 furo-2025.12.19 gitdb-4.0.12 h11-0.16.0 idna-3.11 imagesize-2.0.0 jinja2-3.1.6 linkify-it-py-2.1.0 markdown-it-py-3.0.0 mdit-py-plugins-0.5.0 mdurl-0.1.2 myst-parser-4.0.1 packaging-26.1 pillow-12.2.0 pycparser-3.0 pygments-2.20.0 pyyaml-6.0.3 requests-2.33.1 rst2html-2020.7.4 smmap-5.0.3 snowballstemmer-3.0.1 soupsieve-2.8.3 sphinx-autobuild-2025.8.25 sphinx-basic-ng-1.0.0b2 sphinx-config-options-0.1.1 sphinx-contributor-listing-0.1.0 sphinx-copybutton-0.5.2 sphinx-design-0.7.0 sphinx-filtered-toctree-0.1.0 sphinx-last-updated-by-git-0.3.8 sphinx-notfound-page-1.1.0 sphinx-related-links-0.1.2 sphinx-reredirects-1.1.0 sphinx-roles-0.1.0 sphinx-sitemap-2.9.0 sphinx-tabs-3.5.0 sphinx-terminal-1.0.3 sphinx-ubuntu-images-0.2.0 sphinx-youtube-links-0.1.0 sphinxcontrib-applehelp-2.0.0 sphinxcontrib-devhelp-2.0.0 sphinxcontrib-htmlhelp-2.1.0 sphinxcontrib-jquery-4.1 sphinxcontrib-jsmath-1.0.1 sphinxcontrib-qthelp-2.0.0 sphinxcontrib-serializinghtml-2.0.0 sphinxcontrib-svg2pdfconverter-2.1.0 sphinxext-opengraph-0.13.0 starlette-1.0.0 tinycss2-1.5.1 typing-extensions-4.15.0 uc-micro-py-2.0.0 urllib3-2.6.3 uvicorn-0.44.0 vale-3.13.0.0 watchfiles-1.1.1 webencodings-0.5.1 websockets-16.0

[notice] A new release of pip is available: 25.0.1 -> 26.0.1
[notice] To update, run: pip install --upgrade pip
2026-04-21 02:32:09 - INFO - Cloning repository <canonical/documentation-style-guide> to temporary directory: /tmp/tmpadur7jod
2026-04-21 02:32:09 - INFO - Copying /tmp/tmpadur7jod/styles/Canonical to /home/docs/checkouts/readthedocs.org/user_builds/canonical-starflow/checkouts/130/docs/.sphinx/styles/Canonical
2026-04-21 02:32:09 - INFO - Copying /tmp/tmpadur7jod/styles/config/vocabularies/Canonical to /home/docs/checkouts/readthedocs.org/user_builds/canonical-starflow/checkouts/130/docs/.sphinx/styles/config/vocabularies/Canonical
2026-04-21 02:32:09 - INFO - Copying /tmp/tmpadur7jod/styles/config/dictionaries to /home/docs/checkouts/readthedocs.org/user_builds/canonical-starflow/checkouts/130/docs/.sphinx/styles/config/dictionaries
2026-04-21 02:32:09 - INFO - Copying /tmp/tmpadur7jod/vale.ini to /home/docs/checkouts/readthedocs.org/user_builds/canonical-starflow/checkouts/130/docs/.sphinx/vale.ini
2026-04-21 02:32:09 - INFO - Cleaning up temporary directory: /tmp/tmpadur7jod
2026-04-21 02:32:09 - INFO - Download complete
* vale not found. Downloading it...
* Detected architecture: 64-bit
* https://github.com/errata-ai/vale/releases/download/v3.13.0/vale_3.13.0_Linux_64-bit.tar.gz downloaded to /tmp/tmp9hh0_h46/vale_3.13.0_Linux_64-bit.tar.gz
* Copying /tmp/tmp9hh0_h46/vale_unzipped/vale to /home/docs/checkouts/readthedocs.org/user_builds/canonical-starflow/checkouts/130/.venv/lib/python3.12/site-packages/vale/vale_bin
* vale extracted and copied to module path.
vale version 3.13.0
make -C docs html --no-print-directory
. ../.venv/bin/activate; ../.venv/bin/sphinx-build --fail-on-warning --keep-going -b dirhtml "." "_build" -w .sphinx/warnings.txt -c . -d .sphinx/.doctrees -j auto
Running Sphinx v7.4.7
loading translations [en]... done

Extension error:
Could not import extension sphinxext.rediraffe (exception: No module named 'sphinxext.rediraffe')
sphinx_design found.
sphinx_design is now configured.
sphinx_tabs.tabs found.
sphinx_tabs.tabs is now configured.
sphinx_reredirects found.
sphinx_reredirects is now configured.
canonical.youtube-links not found.
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canonical.related-links not found.
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canonical.custom-rst-roles not found.
canonical.custom-rst-roles will not be configured.
canonical.terminal-output not found.
canonical.terminal-output will not be configured.
canonical.contributor-listing not found.
canonical.contributor-listing will not be configured.
sphinx_copybutton found.
sphinx_copybutton is now configured.
sphinxext.opengraph found.
sphinxext.opengraph is now configured.
sphinxcontrib.jquery found.
sphinxcontrib.jquery is now configured.
notfound.extension found.
notfound.extension is now configured.
sphinxcontrib.cairosvgconverter found.
sphinxcontrib.cairosvgconverter is now configured.
sphinx_last_updated_by_git found.
sphinx_last_updated_by_git is now configured.
matplotlib is not installed, social cards will not be generated
make[1]: *** [Makefile:85: html] Error 2
make: *** [Makefile:87: docs] Error 2