That is weird that the 1.3 binary does not find cuda. This may be an issue with cuda 10.0 minor versions.
The error on the nightly build is unexpected as well. Can you reproduce that error with any file? If so you might want to open an issue on github.
Finally the “easy” solution I would see for such problems would be to compile from source from within your environment. Installing from source within conda should be fairly simple as all dependency can be pulled directly within your conda env.