Time.{new,now} seem to not always have microsecond precision on Windows in MRI 2.4
Time.{new,now} seem to not always have microsecond precision on Windows in MRI 2.4

* https://ci.appveyor.com/project/eregon/spec-x948i/builds/25017302/job/ycqxfikb3792lt9d
* https://ci.appveyor.com/project/eregon/spec-x948i/builds/24933619/job/qcawbw3ffn6wuir6

eregon/rubyspec,ruby/spec,eregon/rubyspec,ruby/spec,nobu/rubyspec,ruby/spec,eregon/rubyspec,nobu/rubyspec,nobu/rubyspec