diff --git a/index.js b/index.js
index 8f6fac1..d094208 100644
--- a/index.js
+++ b/index.js
@@ -1,11 +1,11 @@
-var MemCache = require('mem-cache')
-var SlackGitHubCacheBuilder = require('./lib/retrieve-slack-github-users')
+let MemCache = require('mem-cache')
+let SlackGitHubCacheBuilder = require('./lib/retrieve-slack-github-users')
 
 module.exports = async (robot) => {
   console.log('Yay, the app was loaded!')
 
-  var slackGitHubCache = new MemCache({ timeoutDisabled: true })
-  var slackCachePromise = SlackGitHubCacheBuilder.build(robot, slackGitHubCache)
+  let slackGitHubCache = new MemCache({ timeoutDisabled: true })
+  let slackCachePromise = SlackGitHubCacheBuilder.build(robot, slackGitHubCache)
 
   require('./bot_scripts/assign-new-pr-to-review')(robot)
   require('./bot_scripts/assign-approved-pr-to-test')(robot)
@@ -13,6 +13,7 @@ module.exports = async (robot) => {
   require('./bot_scripts/greet-new-contributor')(robot)
 
   await slackCachePromise
+  robot.log.info('Slack username cache populated, loading remainder of scripts')
 
   // Add scripts which require using the Slack/GitHub cache after this comment