The console out of the job http://ci.ros2.org/job/ci_windows/1651/consoleFull shows the following compiler warning:
(ClCompile target) ->
cl : Command line warning D9002: ignoring unknown option '-std=c++11'
but the result says: "MSBuild Warnings: 0 warnings".
I am happy to provide more information if necessary and/or try a from-source build to check if it makes any difference.