https://doc.rust-lang.org/nightly/unstable-book/language-features/unsized-locals.html https://doc.rust-lang.org/nightly/unstable-book/language-fea... This shou

https://doc.rust-lang.org/nightly/unstable-book/language-features/unsized-locals.html https://doc.rust-lang.org/nightly/unstable-book/language-fea... This should provide interesting reading -- it's a discussion on unsized local variables, e.g. VLA's on the stack.