Adding an extra scope here is slightly annoying, but it's not always possible. I think the example in the blog post was poorly chosen, because the complexity of

Adding an extra scope here is slightly annoying, but it's not always possible. I think the example in the blog post was poorly chosen, because the complexity of BorrowedBuf together with MaybeUninit doesn't make much sense when your fix makes for much more readable code. Out of all problems I have encountered with Rust, this is a particularly minor one.