error: function call inside of `unwrap_or` --> tests/ui/unwrap_or.rs:5:47 | LL | let s = Some(String::from("test string")).unwrap_or("Fail".to_string()).len(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| "Fail".to_string())` | = note: `-D clippy::or-fun-call` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::or_fun_call)]` error: function call inside of `unwrap_or` --> tests/ui/unwrap_or.rs:11:47 | LL | let s = Some(String::from("test string")).unwrap_or("Fail".to_string()).len(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|| "Fail".to_string())` error: aborting due to 2 previous errors