Rust 1.85 lints (#7019)

N/A


  2 changes:
1. Replace Option::map_or(true, ...) with is_none_or(...)
2. Remove unnecessary `Into::into` blocks where the type conversion is apparent from the types

validator_client/slashing_protection/src/slashing_database.rs

@@ -1113,7 +1113,7 @@ fn max_or<T: Copy + Ord>(opt_x: Option<T>, y: T) -> T {
 ///
 /// If prev is `None` and `new` is `Some` then `true` is returned.
 fn monotonic<T: PartialOrd>(new: Option<T>, prev: Option<T>) -> bool {
-    new.is_some_and(|new_val| prev.map_or(true, |prev_val| new_val >= prev_val))
+    new.is_some_and(|new_val| prev.is_none_or(|prev_val| new_val >= prev_val))
 }
 
 /// The result of importing a single entry from an interchange file.