It seems you have to add the "build-scan" dependency to the build, agree to its license, then run your builds with an extra flag before it sends data off to their services.
At the moment there are two steps if you want to view a Build Scan, one is to add the plugin and the other is to add -DScan to the command line. Data doesn't go anywhere unless you have explicitly done both of those things. If you're curious how this works look here https://gradle.com/whats-new-gradle/
