Google VR Quick Start - Installation batch file failure

My Nexus 6 arrived and I’m still having problems, only this time the command window doesn’t close so I need to Ctrl-C stop the process.
Here is a screenshot and the log file (it wouldn’t upload, but here’s a link to my Google drive).
I have made several attempts, both executing the .bat file from windows explorer as well as from the command prompt, and I get the same results.