[lpghatguy]

This code compiles just fine. It doesn't do anything since immutable references are Copy, and so dropping them doesn't do anything.

https://play.rust-lang.org/?version=stable&mode=debug&editio...

[hathawsh]

Oh right, I forgot about the interaction with generics in this case. Semantically, I suppose it's creating and dropping a reference 4 times.