The VTK Doxygen pages haven’t been updated since Feb. 24. The builder ike doesn’t report any errors, so it looks like something is going wrong on the upload.
Also, on the VTK Documentation page (https://vtk.org/documentation/), the only link to Doxygen is the nightly documentation. I think we used to have links to different VTK versions.
Hmm. Seems that it has timeout issues on Buildbot:
command timed out: 1200 seconds without output running […], attempting to kill
process killed by signal 9
A faster machine would likely be the solution here. Maybe this could be our first gitlab-ci builder for VTK? Making it a pure doc builder (i.e., disabling testing) would help make it faster.