promise-retry: debug retry errors

src/promise-retry.js

@@ -17,6 +17,7 @@ async function promiseRetry(options, asyncFunction) {
             return await asyncFunction();
         } catch (error) {
             if (i === times - 1) throw error;
+            if (options.debug) options.debug(`Attempt ${i+1} failed. Will retry: ${error.message}`);
             await delay(interval);
         }
     }