message: Log upload successes for debugging
diff: @@ -84,6 +84,7 @@ export async function uploadToS3(source, client) {
  debug(`Uploading '${path}' failed: %O`, res);
  throw new Error(`Failed to upload ${path}`);
  }
  + debug(`Uploaded '${path}'.`);
  },
  {
  retries: CHROMATIC_RETRIES,
  