Clone
Sometimes you want to make a copy of a value. The Clone trait accomplishes this.
Speaker Notes
This slide should take about 2 minutes.
The idea of Clone is to make it easy to spot where heap allocations are
occurring. Look for .clone() and a few others like Vec::new or Box::new.
It’s common to “clone your way out” of problems with the borrow checker, and return later to try to optimize those clones away.