$ ./gradlew buildInfo test --configuration-cache     # migrated build, first run
> Task :buildInfo
> Task :testClasses
> Task :test
BUILD SUCCESSFUL
Configuration cache entry stored.

$ ./gradlew buildInfo test --configuration-cache     # second run
Reusing configuration cache.
> Task :buildInfo UP-TO-DATE
> Task :testClasses UP-TO-DATE
> Task :test UP-TO-DATE
BUILD SUCCESSFUL
Configuration cache entry reused.

$ BUILD_STAMP=ci42 ./gradlew buildInfo --configuration-cache     # env var changed
BUILD SUCCESSFUL
Configuration cache entry stored.

$ cat build/build-info.txt
g9demo 0.0.1 ci42