Re-queue on 5xx status codes for paste fetches

src/scrapers/pastebin-com.js

@@ -35,8 +35,12 @@ module.exports = function createPastebinComScraper(options = {}) {
 			return bhttp.get(`https://pastebin.com/api_scrape_item.php?i=${task.pasteKey}`);
 		}).then((response) => {
 			if (response.statusCode !== 200) {
-				// FIXME: Retry!
+				if (response.statusCode >= 500 && response.statusCode < 600) {
+					// FIXME: The below logic could lead to an infinite recursion if Pastebin never comes back up
+					return queue.push("fetchPaste", task);
+				} else {
 					throw new errors.HttpError(`Encountered a non-200 status code for Pastebin.com while retrieving a raw paste: ${response.statusCode}`, {type: "statusCode"});
+				}
 			} else if (response.body.toString().indexOf("Please slow down, you are hitting our servers unnecessarily hard!") === 0) {
 				throw new errors.HttpError("Got rate-limited!", {type: "rateLimited"});
 			} else {