[DRE-maint] Bug#882473: ruby-httpclient FTBFS and Debci failure: test_verification_without_httpclient fails

[Adrian Bunk]

Source: ruby-httpclient
Version: 2.8.3-1
Severity: serious

Some recent change in unstable makes ruby-httpclient FTBFS and Debci fail:

https://ci.debian.net/packages/r/ruby-httpclient/unstable/amd64/
https://tests.reproducible-builds.org/debian/history/ruby-httpclient.html
https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/ruby-httpclient.html

...
  test_verification_without_httpclient:			F
===============================================================================
Failure: <false> is not true.
test_verification_without_httpclient(TestSSL)
/build/1st/ruby-httpclient-2.8.3/test/test_ssl.rb:90:in `test_verification_without_httpclient'
     87:     cert = ::OpenSSL::X509::Certificate.new(raw_cert)
     88:     store = ::OpenSSL::X509::Store.new
     89:     store.add_cert(ca_cert)
  => 90:     assert(store.verify(cert))
     91:   end
     92: 
     93:   def test_verification
===============================================================================
: (1.148064)
  test_x509_store_add_cert_prepend:			.: (0.105695)

Finished in 68.383385007 seconds.
------
231 tests, 790 assertions, 1 failures, 0 errors, 0 pendings, 1 omissions, 0 notifications
99.5652% passed
------
3.38 tests/s, 11.55 assertions/s
rake aborted!
Command failed with status (1): [ruby -w -I"test"  "/usr/lib/ruby/vendor_ruby/rake/rake_test_loader.rb" "test/test_auth.rb" "test/test_cookie.rb" "test/test_hexdump.rb" "test/test_http-access2.rb" "test/test_httpclient.rb" "test/test_include_client.rb" "test/test_jsonclient.rb" "test/test_ssl.rb" "test/test_webagent-cookie.rb" -v]

Tasks: TOP => default
(See full trace by running task with --trace)
ERROR: Test "ruby2.3" failed. Exiting.
dh_auto_install: dh_ruby --install /build/1st/ruby-httpclient-2.8.3/debian/ruby-httpclient returned exit code 1
debian/rules:8: recipe for target 'binary' failed
make: *** [binary] Error 1