note that ruby 2.3.0 CANNOT work
note that ruby 2.3.0 CANNOT work

see https://bugs.ruby-lang.org/issues/11884

it's already fixed on ruby master, we just have to wait for the next
release

Change-Id: Icad61ebbd2ae86a36e7bd594ba2276c364c03ef1
Reviewed-on: https://gerrit.instructure.com/70153
Tested-by: Jenkins
Reviewed-by: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>
Product-Review: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>
QA-Review: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>

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