[DRE-maint] Bug#890693: ruby-toml FTBFS with ruby 2.5

[Adrian Bunk]

Source: ruby-toml
Version: 0.2.0-1
Severity: serious

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/ruby-toml.html

...
┌──────────────────────────────────────────────────────────────────────────────┐
│ Run tests for ruby2.5 from debian/ruby-test-files.yaml                       │
└──────────────────────────────────────────────────────────────────────────────┘

RUBYLIB=/build/1st/ruby-toml-0.2.0/debian/ruby-toml/usr/lib/ruby/vendor_ruby:. GEM_PATH=debian/ruby-toml/usr/share/rubygems-integration/all:/var/lib/gems/2.5.0:/usr/lib/x86_64-linux-gnu/rubygems-integration/2.5.0:/usr/share/rubygems-integration/2.5.0:/usr/share/rubygems-integration/all ruby2.5 -ryaml -e YAML.load_file\(\"debian/ruby-test-files.yaml\"\).each\ \{\ \|f\|\ require\ f\ \}
Run options: --seed 58556

# Running:

F..........................

Finished in 0.967573s, 27.9049 runs/s, 31.0054 assertions/s.

  1) Failure:
TestGenerator#test_generator [/build/1st/ruby-toml-0.2.0/test/test_generator.rb:55]:
Expected: "2019-03-21 08:41:01 -1200"
  Actual: "2019-03-21 20:41:01 +0000"

27 runs, 30 assertions, 1 failures, 0 errors, 0 skips
ERROR: Test "ruby2.5" failed. Exiting.
dh_auto_install: dh_ruby --install /build/1st/ruby-toml-0.2.0/debian/ruby-toml returned exit code 1
make: *** [debian/rules:15: binary] Error 1