Otherwise, I get NameError when running these IPv6 tests individually
or in parallel.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64663 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Most of these seem OS bugs.
* See 20180905T103302Z.fail.html.gz
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64644 b2dd03c8-39d4-4d8f-98ff-823fe69b080e