// The default location for cache data is a subdirectory named go-build
// in the standard user cache directory for the current operating system.
// Setting the GOCACHE environment variable overrides this default,
// and running 'go env GOCACHE' prints the current cache directory.
//
// The go command periodically deletes cached data that has not been
// used recently. Running 'go clean -cache' deletes all cached data.
//