[DRE-maint] Bug#963379: ruby-arbre: FTBFS: ERROR: Test "ruby2.7" failed: ArgumentError: Trying to register Bundler::GemfileError for status code 4 but Bundler::GemfileError is already registered

[Lucas Nussbaum]

Source: ruby-arbre
Version: 1.2.1-3
Severity: serious
Justification: FTBFS on amd64
Tags: bullseye sid ftbfs
Usertags: ftbfs-20200620 ftbfs-bullseye

Hi,

During a rebuild of all packages in sid, your package failed to build
on amd64.

Relevant part (hopefully):
> ArgumentError:
>   Trying to register Bundler::GemfileError for status code 4 but Bundler::GemfileError is already registered
> # /usr/share/rubygems-integration/all/gems/bundler-2.1.4/lib/bundler.rb:7:in `require_relative'
> # /usr/share/rubygems-integration/all/gems/bundler-2.1.4/lib/bundler.rb:7:in `<top (required)>'
> # ./spec/rails/rails_spec_helper.rb:2:in `require'
> # ./spec/rails/rails_spec_helper.rb:2:in `<top (required)>'
> # ./spec/rails/integration/rendering_spec.rb:1:in `require'
> # ./spec/rails/integration/rendering_spec.rb:1:in `<top (required)>'
> 
> Finished in 0.00003 seconds (files took 0.36275 seconds to load)
> 0 examples, 0 failures, 2 errors occurred outside of examples
> 
> /usr/bin/ruby2.7 -I/usr/share/rubygems-integration/all/gems/rspec-support-3.9.2/lib:/usr/share/rubygems-integration/all/gems/rspec-core-3.9.1/lib /usr/share/rubygems-integration/all/gems/rspec-core-3.9.1/exe/rspec --pattern ./spec/\*\*/\*_spec.rb --format documentation failed
> ERROR: Test "ruby2.7" failed: 

The full build log is available from:
   http://qa-logs.debian.net/2020/06/20/ruby-arbre_1.2.1-3_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.