Try to change it to 1.3.0. You don’t need to use the early access build as 1.3 was released some weeks ago.
Also I don’t think coroutines 1.0.1 works with the eap versions of kotlin. I think this is the reason for your errors, but I’m not 100% sure.
As a last point, I don’t think you need the java plugin, but AFAIK this should not affect your build in any negative way.