I was actually wondering how much this would affect many build pipelines — if you're doing your builds in a container, the 7 day threshold would never even be reached unless you enabled caching for that file.
The main thing I think this would do is help them flesh out the non-mainstream configurations. For example, I've used Go on AIX but I'd be surprised if bug reports on that platform didn't hit basically every maintainer by surprise since statistically nobody tests on it regularly or even has access to do so. I'd think most of the value of systems like this would be finding out that the change they tested exhaustively on everything Google normally uses is also going to break 100% of some niche community.
The main thing I think this would do is help them flesh out the non-mainstream configurations. For example, I've used Go on AIX but I'd be surprised if bug reports on that platform didn't hit basically every maintainer by surprise since statistically nobody tests on it regularly or even has access to do so. I'd think most of the value of systems like this would be finding out that the change they tested exhaustively on everything Google normally uses is also going to break 100% of some niche community.