I managed to find some more versions, I'm now building #kotlin 0.13.791 from August 2015:

0.12.470 -> 0.12.852 -> 0.12.1077 -> 0.12.1250 -> 0.13.177 -> 0.13.791

(0.13.795 is failing to build with 0.13.177, but it builds with 0.13.791, so I'll be able to continue the chain forward)

However, anything beyond 0.12.470 requires java-jansi, and although there is a #guix package, it doesn't work during the build, failing to find a native library it seems. I use a binary for now.