A guide to closures in Rust
&gt; I&#x27;ll explain what the move keyword does later in the article. For now just trust me that it is needed for the code to compile.<p>That does not take a lot of trust, after a few rounds with that compiler. At least error messages are good with the Rust compiler. I&#x27;ve got very limited experience with Rust, but it does seem like a language with a massive threshold for beginners.