[DRE-maint] Bug#979432: ruby-rack FTBFS on IPV6-only buildds

[Adrian Bunk]

On Sun, Feb 07, 2021 at 06:30:20PM +0100, Chris Hofstaedtler wrote:
> > /usr/lib/ruby/vendor_ruby/eventmachine.rb:532:in `start_tcp_server': no acceptor (port is in use or requires root privileges) (RuntimeError)
> 
> Please explain what "IPv6-only buildd" actually means. How can one
> reproduce this?

Some buildds no longer have IPV4 connectivity, and the release team 
considers FTBFS on these release critical bugs.

The best information I am aware of is:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962019#26

> Chris

cu
Adrian