It seems that the second build (run-publish 2867) managed to create the eups-tag.
However, the documenteer execution requires the existence of the corresponding lsst_distrib Docker image.
At this point, it is worth for the DM-CCB considering having a 19.0.1 patch, instead of applying manually all the steps.
The developer guide
also sais the following about the documenteer job:
You can’t use this Jenkins CI job to test development branches of packages with the pipelines.lsst.io site build. This Jenkins CI job always uses packages corresponding to a released EUPS tag (such as a daily, weekly, or stable release). Only the branch of the pipelines_lsst_io repository can be modified.