Right. By "this kind of thing" I mean code that breaks subtly like the examples in the article. I don't mean to argue with the breaking changes (versus the 1.0)

Right. By "this kind of thing" I mean code that breaks subtly like the examples in the article. I don't mean to argue with the breaking changes (versus the 1.0) in Rust which have been well thought out. Just that an accumulation of these types of changes without an errata of sorts on 1.0 Rust could lead to something like this down the road.