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

beacon_node/operation_pool/src/bls_to_execution_changes.rs

@@ -112,7 +112,7 @@ impl<E: EthSpec> BlsToExecutionChanges<E> {
             head_state
                 .validators()
                 .get(validator_index as usize)
-                .map_or(true, |validator| {
+                .is_none_or(|validator| {
                     let prune = validator.has_execution_withdrawal_credential(spec)
                         && head_block
                             .message()

beacon_node/operation_pool/src/lib.rs

@@ -767,7 +767,7 @@ fn prune_validator_hash_map<T, F, E: EthSpec>(
             && head_state
                 .validators()
                 .get(validator_index as usize)
-                .map_or(true, |validator| !prune_if(validator_index, validator))
+                .is_none_or(|validator| !prune_if(validator_index, validator))
     });
 }
 

beacon_node/operation_pool/src/reward_cache.rs

@@ -83,7 +83,7 @@ impl RewardCache {
         if self
             .initialization
             .as_ref()
-            .map_or(true, |init| *init != new_init)
+            .is_none_or(|init| *init != new_init)
         {
             self.update_previous_epoch_participation(state)
                 .map_err(OpPoolError::RewardCacheUpdatePrevEpoch)?;