Why are search results not showing up?

I have a single site collection on the root of a particular web application. I've gone into the site collection settings, and created a result source named 'infostore' {Protocol: Local sharepoint, type: SharePoint Search Results, Query transform: {searchTerms} path:http://url:port, default authentication. I then go into the search center site collection for this web application http://url:port, and edit the Search results web part. I click on change query in the search results properties, and select the query Infostore.

I've also gone into Central Administration > Manage service applications > manage Search Service Application > Content Sources > Local Sharepoint Sites, and added http://url:port in the Start Addresses box.

For some reason, nothing comes up when I go to that site collection and search. I've tried multiple keywords, etc, and nothing. I also have continuous crawl set up.

Are there any other things that I should be checking?