In Rust 1.2 beta the unused
#[packed] attribute was removed from the compiler causing some crates to break.
Every break we introduce tarnishes our long-term reputation and we need to establish ourselves as a serious project that can maintain our commitments to users.
While this is minor breakage, it is avoidable and I suggest we revert the original patch and turn
packed into a permanent warning.
I'll be happy to put a patch together. Any other opinions?