I'm working on a very simple UWP app. I getting back to work on it, after a long delay, so I'd forgotten that I'd set up continuous integration in Azure DevOps build pipeline, until I got an email from Azure DevOps informing me of the success of the build.
But it took 25 minutes to complete the build!!
Why did it take so long? On my 6 year old desktop it completes a build in no more than 30 seconds.