skip continuous failure test.
On mingw this test fails and not solved long time, so skip it. Please revert it when it solved.
https://ci.appveyor.com/project/ruby/ruby/builds/29458671/job/9nbcjnfe6p0xnxoe
skip continuous failure test.
On mingw this test fails and not solved long time, so skip it.
Please revert it when it solved.
https://ci.appveyor.com/project/ruby/ruby/builds/29458671/job/9nbcjnfe6p0xnxoe