Build-time metrics

I was wondering if there’s any way to extract build-time metrics (eg. how long each docker build step took)?

We’ve recently migrated 20+ apps to docker in an organization w/ 60+ developers, and there are some complaints around how long the build processes are for some of the apps. It’d be nice to be able to get aggregate metrics across our uses (if I could figure out how to get the numbers out we would send them to Datadog for slicing and dicing).