Do not require that unsafe fields lack drop glue Instead, we adopt the position that introducing an `unsafe` field itself carries a safety invariant: that if you assign an invariant to that field weaker than what the field's destructor requires, you must ensure that field is in a droppable state in your destructor. See: - https://github.com/rust-lang/rfcs/pull/3458#discussion_r1971676100 - https://rust-lang.zulipchat.com/#narrow/channel/213817-t-lang/topic/unsafe.20fields.20RFC/near/502113897 Tracking Issue: #132922