Missing Mirrors for modeling/emf/emf/builds

Summary

This URL returns no mirrors:

https://www.eclipse.org/downloads/download.php?file=/modeling/emf/emf/builds/release/2.29&countryCode=us&timeZone=1&format=xml

This report indicates that the entire builds folder is missing:

https://download.eclipse.org/oomph/archive/eclipse/modeling/emf/emf/index.html

I believe EMF's update sites are quite heavily used so this is not good for the server.