"static analysis"-gate

[steveklabnik]

In the guide, I make mention that boxes have lifetimes, and that's what determines when they get freed. affine types and lifetimes are orthogonal, as @eddyb mentions. So I should figure out how to re-word that.

[eddyb]

"When they go out of scope" is a phrase I've often heard.
There should probably be a mention of RAII, too, since that's what it's called in C++ (though the acronym's wording has long lost its relevance AFAIK).