sys-apps/portage ChangeLog in tree refers to this URL, but it doesn't seem to work properly. Here is a screenshot of how does it look like. I've tried with bluejay.gentoo.org and wren.gentoo.org (can't remember the name of the third node).
enscript (the program that's failing) has a security issue that came up without a fix yet, so to make our servers more secure we took it off temporarily. It didn't seem to affect too much. Once theres a fix we may bring it back. Sorry!
*** Bug 80320 has been marked as a duplicate of this bug. ***
Updated all our nodes to the new patched version. They should all be working now!
All working again here, thanks Lance! :)
*** Bug 51653 has been marked as a duplicate of this bug. ***