If your once-a-year binary has any dependencies in common with others, then you need to at the very least be rebuilding and re-running the tests when those shar

If your once-a-year binary has any dependencies in common with others, then you need to at the very least be rebuilding and re-running the tests when those shared dependencies change, or else you'll find at the end of the year that it doesn't build, let alone work. And the compiler and stdlib count as shared dependencies.