Rust 1.80.0 lints (#6183)

* Fix lints

beacon_node/beacon_chain/src/beacon_chain.rs

@@ -1450,7 +1450,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
     /// Returns the `BeaconState` the current slot (viz., `self.slot()`).
     ///
     ///  - A reference to the head state (note: this keeps a read lock on the head, try to use
-    ///  sparingly).
+    ///    sparingly).
     ///  - The head state, but with skipped slots (for states later than the head).
     ///
     ///  Returns `None` when there is an error skipping to a future state or the slot clock cannot

beacon_node/beacon_chain/src/block_verification.rs

@@ -300,7 +300,9 @@ pub enum BlockError<E: EthSpec> {
     /// 1. The block proposer is faulty
     /// 2. We received the blob over rpc and it is invalid (inconsistent w.r.t the block).
     /// 3. It is an internal error
+    ///
     /// For all these cases, we cannot penalize the peer that gave us the block.
+    ///
     /// TODO: We may need to penalize the peer that gave us a potentially invalid rpc blob.
     /// https://github.com/sigp/lighthouse/issues/4546
     AvailabilityCheck(AvailabilityCheckError),

beacon_node/beacon_chain/src/test_utils.rs

@@ -2511,9 +2511,9 @@ where
     /// Creates two forks:
     ///
     ///  - The "honest" fork: created by the `honest_validators` who have built `honest_fork_blocks`
-    /// on the head
+    ///    on the head
     ///  - The "faulty" fork: created by the `faulty_validators` who skipped a slot and
-    /// then built `faulty_fork_blocks`.
+    ///    then built `faulty_fork_blocks`.
     ///
     /// Returns `(honest_head, faulty_head)`, the roots of the blocks at the top of each chain.
     pub async fn generate_two_forks_by_skipping_a_block(