Function build_ruby_server_run 

pub fn build_ruby_server_run(
    manifest: &CoverageManifest,
    evidence_directory: &Path,
    run_id: &str,
    generated_at: &str,
    test_exit_code: i32,
    root: &Path,
    served: &[ServedTest],
) -> Result<RubyFrontendRun, RubyEvidenceError>

The Ruby run of a server a browser suite drove: the server’s evidence, with each browser test’s outcome as its runner reported it, under the names that runner gave them.