[DRE-maint] Bug#996379: ruby-rspec: FTBFS with ruby3.0: ERROR: Test "ruby3.0" failed: Failure/Error: DEFAULT_FAILURE_NOTIFIER = lambda { |failure, _opts| raise failure }

[Antonio Terceiro]

Source: ruby-rspec
Version: 3.9.0c2e2m1s3-2
Severity: serious
Justification: FTBFS
Tags: bookworm sid ftbfs
User: debian-ruby at lists.debian.org
Usertags: ruby3.0

Hi,

We are about to enable building against ruby3.0 on unstable. During a test
rebuild, ruby-rspec was found to fail to build in that situation.

To reproduce this locally, you need to install ruby-all-dev from experimental
on an unstable system or build chroot.

Relevant part (hopefully):
>      Failure/Error: DEFAULT_FAILURE_NOTIFIER = lambda { |failure, _opts| raise failure }
>        expected /Warnings were generated:/ but nothing was raised
>      # ./spec/rspec/support/spec/stderr_splitter_spec.rb:92:in `block (2 levels) in <top (required)>'
>      # ./spec/rspec/support/spec/stderr_splitter_spec.rb:19:in `block (2 levels) in <top (required)>'
> 
> Finished in 1.08 seconds (files took 0.2783 seconds to load)
> 538 examples, 1 failure, 1 pending
> 
> Failed examples:
> 
> rspec ./spec/rspec/support/spec/stderr_splitter_spec.rb:90 # RSpec::Support::StdErrSplitter will fail an example which generates a warning
> 
> Randomized with seed 13098
> 
> cd -
> Failed: rspec-support
> ERROR: Test "ruby3.0" failed: 


The full build log is available at
https://people.debian.org/~kanashiro/ruby3.0/round2/builds/3/ruby-rspec/ruby-rspec_3.9.0c2e2m1s3-2+rebuild1633393939_amd64.build.txt
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