[DRE-maint] Bug#812764: ruby-redis-store: FTBFS - ruby2.2: No such file or directory -- rake (LoadError)

[Michael Tautschnig]

Package: ruby-redis-store
Version: 1.1.6-1
Severity: serious
Usertags: goto-cc

During a rebuild of all Debian packages in a clean sid chroot (using cowbuilder
and pbuilder) the build failed with the following error.

[...]
┌──────────────────────────────────────────────────────────────────────────────┐
│ Install Rubygems integration metadata                                        │
└──────────────────────────────────────────────────────────────────────────────┘

generating gemspec at /srv/jenkins-slave/workspace/sid-goto-cc-ruby-redis-store/ruby-redis-store-1.1.6/debian/ruby-redis-store/usr/share/rubygems-integration/all/specifications/redis-store-1.1.6.gemspec
/usr/bin/ruby2.2 /usr/bin/gem2deb-test-runner

┌──────────────────────────────────────────────────────────────────────────────┐
│ Run tests for ruby2.2 from debian/ruby-tests.rake                            │
└──────────────────────────────────────────────────────────────────────────────┘

RUBYLIB=/srv/jenkins-slave/workspace/sid-goto-cc-ruby-redis-store/ruby-redis-store-1.1.6/debian/ruby-redis-store/usr/lib/ruby/vendor_ruby:. GEM_PATH=/srv/jenkins-slave/workspace/sid-goto-cc-ruby-redis-store/.gem/ruby/2.2.0:/var/lib/gems/2.2.0:/usr/lib/x86_64-linux-gnu/rubygems-integration/2.2.0:/usr/share/rubygems-integration/2.2.0:/usr/share/rubygems-integration/2.2:/usr/share/rubygems-integration/all:debian/ruby-redis-store/usr/share/rubygems-integration/all ruby2.2 -S rake -f debian/ruby-tests.rake
ruby2.2: No such file or directory -- rake (LoadError)
ERROR: Test "ruby2.2" failed. Exiting.
dh_auto_install: dh_ruby --install /srv/jenkins-slave/workspace/sid-goto-cc-ruby-redis-store/ruby-redis-store-1.1.6/debian/ruby-redis-store returned exit code 1
debian/rules:15: recipe for target 'binary' failed
make: *** [binary] Error 1


The full build log is attached; please do let me know if the problem is
unreproducible, in which case I shall try to investigate further. I am actually
seeing this on a number of ruby packages, so there may as well be a problem in
the ruby tool chain.

Best,
Michael
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