merge upstream/unstable

beacon_node/beacon_chain/src/naive_aggregation_pool.rs

@@ -402,7 +402,7 @@ impl<T: AggregateMap> NaiveAggregationPool<T> {
 
     /// Returns the total number of items stored in `self`.
     pub fn num_items(&self) -> usize {
-        self.maps.iter().map(|(_, map)| map.len()).sum()
+        self.maps.values().map(T::len).sum()
     }
 
     /// Returns an aggregated `T::Value` with the given `T::Data`, if any.
@@ -448,11 +448,7 @@ impl<T: AggregateMap> NaiveAggregationPool<T> {
         // If we have too many maps, remove the lowest amount to ensure we only have
         // `SLOTS_RETAINED` left.
         if self.maps.len() > SLOTS_RETAINED {
-            let mut slots = self
-                .maps
-                .iter()
-                .map(|(slot, _map)| *slot)
-                .collect::<Vec<_>>();
+            let mut slots = self.maps.keys().copied().collect::<Vec<_>>();
             // Sort is generally pretty slow, however `SLOTS_RETAINED` is quite low so it should be
             // negligible.
             slots.sort_unstable();

beacon_node/beacon_chain/src/test_utils.rs

@@ -1459,7 +1459,7 @@ where
         let proposer_index = state.get_beacon_proposer_index(slot, &self.spec).unwrap();
 
         let signed_block = block.sign(
-            &self.validator_keypairs[proposer_index as usize].sk,
+            &self.validator_keypairs[proposer_index].sk,
             &state.fork(),
             state.genesis_validators_root(),
             &self.spec,

beacon_node/beacon_chain/src/validator_monitor.rs

@@ -631,10 +631,7 @@ impl<T: EthSpec> ValidatorMonitor<T> {
 
     // Return the `id`'s of all monitored validators.
     pub fn get_all_monitored_validators(&self) -> Vec<String> {
-        self.validators
-            .iter()
-            .map(|(_, val)| val.id.clone())
-            .collect()
+        self.validators.values().map(|val| val.id.clone()).collect()
     }
 
     /// If `self.auto_register == true`, add the `validator_index` to `self.monitored_validators`.