That's a fair workaround for my specific example. But I believe it's possible to contrive a different example where such a solution would not be possible. Put differently, I only tried to convey the overall idea of what I think is a shortcoming in Rust at the moment.
Edit: Also, I believe your code would fail my second section, as the `convert` function would have difficulty accepting a `[u8]` slice. Converting `[u8]` to `[MaybeUninit<u8>]` is not safe per se.