This has hit me a few times in the past. I'll build locally and everything will be fine, but dry runs will fail on the analyze step.

Is there a way to surface this error locally earlier? Could we run gn check in parallel with a build? Could we run it only when we regenerate ninja files?

Ideally we would add this as a presubmit, but I don't think presubmits have any knowledge of your build directory.