CI test building docs times out

[jasongrout]

Looking at https://github.com/jupyter-widgets/ipywidgets/actions/workflows/tests.yml?page=2, it seems that 6 days ago the CI test that builds docs mysteriously went from taking 6-7 minutes to build the ipywidgets docs (last successful run at https://github.com/jupyter-widgets/ipywidgets/actions/runs/3288921497) to timing out after 6+ hours (first timeout at https://github.com/jupyter-widgets/ipywidgets/actions/runs/3288952655).

Since that time, it seems that all documentation builds on CI have timed out after 6+ hours, so no PR has all tests passing.

[jasongrout]

Looking at those two logs with timestamps, here is the failing line: https://github.com/jupyter-widgets/ipywidgets/actions/runs/3288952655/jobs/5419910380#step:6:1382

Thu, 20 Oct 2022 10:58:04 GMT reading sources... [ 43%] examples/Output Widget
Thu, 20 Oct 2022 16:52:38 GMT Error: The operation was canceled.

Notice that line timed out after 6 hours. Everything up to that point executed pretty quickly, it seemed.

Here it is passing in the previous test run:

https://github.com/jupyter-widgets/ipywidgets/actions/runs/3288921497/jobs/5419841301#step:6:1382

Thu, 20 Oct 2022 10:53:12 GMT reading sources... [ 39%] examples/Layout Templates
Thu, 20 Oct 2022 10:53:18 GMT reading sources... [ 43%] examples/Output Widget
Thu, 20 Oct 2022 10:53:21 GMT reading sources... [ 47%] examples/Using Interact

[jasongrout]

Carefully looking at the differences between the two builds linked above, we see:

• Passed using Python 3.7.14, failed using Python 3.7.15
• The github image changed:

--- docpassedcut.txt	2022-10-26 03:41:53.000000000 -0600
+++ docfailedcut.txt	2022-10-26 03:42:02.000000000 -0600
@@ -11,12 +11,12 @@
 ##[endgroup]
 ##[group]Runner Image
 Image: ubuntu-20.04
-Version: 20221002.2
-Included Software: https://github.com/actions/runner-images/blob/ubuntu20/20221002.2/images/linux/Ubuntu2004-Readme.md
-Image Release: https://github.com/actions/runner-images/releases/tag/ubuntu20%2F20221002.2
+Version: 20221018.2
+Included Software: https://github.com/actions/runner-images/blob/ubuntu20/20221018.2/images/linux/Ubuntu2004-Readme.md
+Image Release: https://github.com/actions/runner-images/releases/tag/ubuntu20%2F20221018.2
 ##[endgroup]
 ##[group]Runner Image Provisioner
-2.0.78.1
+2.0.91.1
 ##[endgroup]
 ##[group]GITHUB_TOKEN Permissions
 Contents: read
@@ -45,9 +45,9 @@
 ##[group]Getting Git version info
 Working directory is '/home/runner/work/ipywidgets/ipywidgets'
 [command]/usr/bin/git version
-git version 2.37.3
+git version 2.38.1
@@ -523,8 +523,8 @@
   token: ***
   update-environment: true
 ##[endgroup]
-Successfully set up CPython (3.7.14)
-[command]/opt/hostedtoolcache/Python/3.7.14/x64/bin/pip cache dir
+Successfully set up CPython (3.7.15)
+[command]/opt/hostedtoolcache/Python/3.7.15/x64/bin/pip cache dir
 /home/runner/.cache/pip
 pip cache is not found
 ##[group]Run actions/setup-node@v3

[mcrutch]

I wasn't able to build it manually either. Using conda based on the environment.yml, freezes at the same location
reading sources... [ 43%] examples/Output Widget

[bollwyvl]

Fixed by #3673 (at least WFMaGHA)

[jasongrout]

WFMaGHA

I've got to ask: "Works for me and ...."???

[bollwyvl]

GHA

Sorry: GitHub Actions