Hello everyone I maintain Elixir in Debian. Obviously the compatibility between the Erlang's versions has been broken. I did a small research and found out that failing autopkgtest is the result of Erlang's :re module. Unfortunately, I can't provide details for the problem because a deeper study of it can take a lot of time which I don't have so far. Also I can confirm that rebuilding Elixir against the newest Erlang fixes the problem.
Evgeny
