message: Make install actually fail if the release can't be downloaded
diff: @@ -75,4 +75,7 @@ getReleaseByTag("1.4.0-rc.1")
  .then(() => {
  console.log("Wrangler has been installed!");
  })
  - .catch(e => { console.error("Error fetching release", e.message); });
  + .catch(e => {
  + console.error("Error fetching release", e.message);
  + throw e;
  + });
  