So reading an uninitialised u8 is not UB? I found the Rust documentation pretty unclear, u8 does not have a "restricted set of valid values" which suggests it s

So reading an uninitialised u8 is not UB? I found the Rust documentation pretty unclear, u8 does not have a "restricted set of valid values" which suggests it should be ok, but the documentation also says "the only cases in which reading uninitialized memory is permitted are inside unions and in “padding” (the gaps between the fields of a type)".