1 hr 44 mins: https://ci.chromium.org/ui/p/flutter/builders/prod/Mac%20Host%20Engine/12567/overview

vs

10 mins: https://ci.chromium.org/ui/p/flutter/builders/prod/Mac%20Host%20Engine/12559/overview

This started happening sometime yesterday:

This is on mac-host-engine, but i've seen this on other mac variants as well.