Yea, that's another thing about rust. At times, things like what Hyper's Body method is doing can be quite puzzling. And while Rust's attempt to help is noble,

Yea, that's another thing about rust. At times, things like what Hyper's Body method is doing can be quite puzzling. And while Rust's attempt to help is noble, it can end up even more confusing. At times it is awesome, but it can be a lot of visual noise for beginners. Fwiw, https://news.ycombinator.com/item?id=11780196 https://news.ycombinator.com/item?id=11780196 has the answer to my example problem. I'm also inquiring about using lifetimes to solve the problem.