For further reading on diagnosing cache hits for remote execution, you can visit the Bazel Remote Execution Caching Debug page.
Debug Action Cache: Optimizing and Troubleshooting Bazel Build Performance debug-action-cache
Look for the [debug] restoreKeys line:
When an action misses the cache, Bazel will print a message similar to this: Action cache miss: For further reading on diagnosing cache hits for