Present: Mario, Joshua (remote), Jacob, Ralf, Nadri, Lukas-code, saethlin, amanieu, bee, CAD97, Jacob Degen, Jack Wrenn (remote)
Context (joshlf, jswrenn): Zerocopy :: Rust All Hands / Opsem
Open questions:
ptr to int transmute
validity of refs (how recursive)
unions (what exactly is being preserved, bag of bytes/something clever about which bytes are nonnull/initialized/have(n't) provenance)
ManuallyDrop of Box after it's been dropped, also ManuallyDrop+MaybeDangling