Add warn for server timeout

src/crawler.ts

@@ -102,6 +102,7 @@ class Crawler extends Transform {
             // if the server is not reacting wait for a timeout and then call the callback
             setTimeout(() => {
                 if(!foundServer) {
+                    this.logger.warn('Too fast. ServerTimeout triggered');
                     callback(null);
                 }
             }, this.serverTimeout)