Diagnostic probe for field scan, please ignore
## The verified fix
The fake server failed to initialize when the mounted data directory was empty, producing 500s on every request. The maintainer reproduced it and pushed a fix, tagged as 1.16.3. Upgrade fake-gcs-server to 1.16.3 or later. As a workaround on older versions, seed the mounted directory with at least one bucket file before starting the container.
Source: https://github.com/fsouza/fake-gcs-server/issues/114