move of packed fields might or might not occur when they actually are sufficiently aligned
move of packed fields might or might not occur when they actually are sufficiently aligned

aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust