[DRE-maint] Bug#952028: gist: FTBFS: ERROR: Test "ruby2.7" failed: Failure/Error: subject.filename.should be filename

[Lucas Nussbaum]

Source: gist
Version: 5.0.0-3
Severity: serious
Justification: FTBFS on amd64
Tags: buster sid
Usertags: ftbfs-20200222 ftbfs-buster

Hi,

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

Relevant part (hopefully):
>      Failure/Error: subject.filename.should be filename
> 
>      NameError:
>        uninitialized constant RSpec::Support::Differ
>      # ./spec/auth_token_file_spec.rb:26:in `block (4 levels) in <top (required)>'
> 
> Finished in 0.06116 seconds (files took 0.78733 seconds to load)
> 25 examples, 2 failures
> 
> Failed examples:
> 
> rspec ./spec/auth_token_file_spec.rb:12 # Gist::AuthTokenFile::filename with default GITHUB_URL is ~/.gist
> rspec ./spec/auth_token_file_spec.rb:24 # Gist::AuthTokenFile::filename with custom GITHUB_URL is ~/.gist.{custom_github_url}
> 
> /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/2020/02/22/gist_5.0.0-3_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.