diff --git a/z2/src/deployer.rs b/z2/src/deployer.rs
index f52b2193a..ac95cc85b 100644
--- a/z2/src/deployer.rs
+++ b/z2/src/deployer.rs
@@ -8,11 +8,11 @@ use tokio::{fs, sync::Semaphore, task};
 
 use crate::{
     address::EthereumAddress,
-    chain::Chain,
     chain::{
         config::NetworkConfig,
         instance::ChainInstance,
         node::{self, ChainNode, NodeRole},
+        Chain,
     },
     secret::Secret,
     validators,
@@ -63,7 +63,7 @@ pub async fn install_or_upgrade(
     node_selection: bool,
     max_parallel: usize,
     persistence_url: Option<String>,
-    machines: &Vec<String>,
+    machines: &[String],
 ) -> Result<()> {
     let config = NetworkConfig::from_file(config_file).await?;
     let mut chain = ChainInstance::new(config).await?;
@@ -75,7 +75,7 @@ pub async fn install_or_upgrade(
         .collect::<Vec<_>>();
 
     let selected_machines = if !machines.is_empty() {
-        machines.clone()
+        machines.to_owned()
     } else if !node_selection {
         node_names
     } else {
diff --git a/z2/src/plumbing.rs b/z2/src/plumbing.rs
index 04f06d23e..3c816c1af 100644
--- a/z2/src/plumbing.rs
+++ b/z2/src/plumbing.rs
@@ -176,7 +176,7 @@ pub async fn run_deployer_install(
     node_selection: bool,
     max_parallel: Option<usize>,
     persistence_url: Option<String>,
-    machines: &Vec<String>,
+    machines: &[String],
 ) -> Result<()> {
     println!("🦆 Installing {config_file} .. ");
     deployer::install_or_upgrade(
@@ -195,7 +195,7 @@ pub async fn run_deployer_upgrade(
     config_file: &str,
     node_selection: bool,
     max_parallel: Option<usize>,
-    machines: &Vec<String>,
+    machines: &[String],
 ) -> Result<()> {
     println!("🦆 Upgrading {config_file} .. ");
     deployer::install_or_upgrade(
@@ -484,7 +484,7 @@ pub async fn test(
     base_dir: &str,
     log_spec: &str,
     watch: bool,
-    rest: &Vec<String>,
+    rest: &[String],
 ) -> Result<()> {
     let mut setup_obj = setup::Setup::load(config_dir, log_spec, base_dir, watch).await?;
     if rest.is_empty() {
diff --git a/z2/src/setup.rs b/z2/src/setup.rs
index 4f9d48d86..e9683b8fe 100644
--- a/z2/src/setup.rs
+++ b/z2/src/setup.rs
@@ -1,4 +1,10 @@
-use crate::address::EthereumAddress;
+use core::net::Ipv4Addr;
+use std::{
+    collections::HashMap,
+    path::{Path, PathBuf},
+    str::FromStr,
+};
+
 use alloy::{
     primitives::{address, Address},
     signers::local::LocalSigner,
@@ -8,11 +14,6 @@ use k256::ecdsa::SigningKey;
 use libp2p::{Multiaddr, PeerId};
 use serde::{Deserialize, Serialize};
 use serde_yaml;
-use std::{
-    collections::HashMap,
-    path::{Path, PathBuf},
-    str::FromStr,
-};
 use tera::Tera;
 use tokio::fs;
 use zilliqa::{
@@ -36,13 +37,13 @@ use zilliqa::{
 };
 
 use crate::{
+    address::EthereumAddress,
     chain,
     collector::{self, Collector},
     components::{Component, Requirements},
     node_spec::Composition,
     scilla, utils, validators,
 };
-use core::net::Ipv4Addr;
 
 const GENESIS_DEPOSIT: u128 = 10000000000000000000000000;
 const DATADIR_PREFIX: &str = "z2_node_";
@@ -277,7 +278,7 @@ impl Setup {
     }
 
     pub fn get_p2p_port(&self, index: u16) -> u16 {
-        return self.config.base_port + 301 + index + self.config.base_port;
+        self.config.base_port + 301 + index + self.config.base_port
     }
 
     pub fn get_external_addr(&self, index: u16) -> Result<Multiaddr> {
diff --git a/z2/src/testing.rs b/z2/src/testing.rs
index 130e5e594..9495a769f 100644
--- a/z2/src/testing.rs
+++ b/z2/src/testing.rs
@@ -1,17 +1,25 @@
 // Code to stress-test z2 networks.
 #![allow(unused_imports)]
 
-use crate::{node_spec, setup::Setup};
+use std::{
+    cmp::{Ordering, PartialOrd},
+    collections::{BinaryHeap, HashSet},
+};
+
 use anyhow::{anyhow, Error, Result};
-use jsonrpsee::core::{client::ClientT, params::ArrayParams};
-use jsonrpsee::http_client::HttpClientBuilder;
-use jsonrpsee::rpc_params;
-use std::cmp::{Ordering, PartialOrd};
-use std::collections::{BinaryHeap, HashSet};
-use tokio::process::Command;
-use tokio::time::{self, Duration, Instant};
+use jsonrpsee::{
+    core::{client::ClientT, params::ArrayParams},
+    http_client::HttpClientBuilder,
+    rpc_params,
+};
+use tokio::{
+    process::Command,
+    time::{self, Duration, Instant},
+};
 use tower_http::trace::TraceLayer;
 
+use crate::{node_spec, setup::Setup};
+
 // This is inherently reversed, since BinaryHeap is a max-heap
 
 // Not very artistic, but it'll do .
@@ -43,13 +51,7 @@ struct HeapEntry {
 impl Ord for HeapEntry {
     fn cmp(&self, other: &Self) -> Ordering {
         // Backwards because BinaryHeap is a max-heap.
-        if self.when_ms > other.when_ms {
-            Ordering::Less
-        } else if self.when_ms < other.when_ms {
-            Ordering::Greater
-        } else {
-            Ordering::Equal
-        }
+        other.when_ms.cmp(&self.when_ms)
     }
 }
 
@@ -103,8 +105,8 @@ impl Partition {
             if times.len() != 2 {
                 return Err(anyhow!("Arg '{arg}' - there must be two times, separated by a '/' after the ':' - found {0}", times.len()));
             }
-            let start_ms = u64::from_str_radix(times[0], 10)?;
-            let end_ms = u64::from_str_radix(times[1], 10)?;
+            let start_ms = times[0].parse::<u64>()?;
+            let end_ms = times[1].parse::<u64>()?;
             entries.push(PartitionEntry {
                 nodes_to_talk_to,
                 nodes_to_tell,
diff --git a/z2/src/zq2.rs b/z2/src/zq2.rs
index f2607a964..ce2028619 100644
--- a/z2/src/zq2.rs
+++ b/z2/src/zq2.rs
@@ -1,6 +1,7 @@
+use std::env;
+
 use anyhow::Result;
 use futures::future::JoinAll;
-use std::env;
 use tokio::{process::Command, sync::mpsc, task::JoinHandle};
 
 use crate::{
diff --git a/zilliqa/src/block_store.rs b/zilliqa/src/block_store.rs
index 31143a69b..e8f16eb3c 100644
--- a/zilliqa/src/block_store.rs
+++ b/zilliqa/src/block_store.rs
@@ -107,7 +107,7 @@ impl BlockCache {
     }
 
     // Dump out a graphviz dotfile fragment containing the cache with links.
-    pub fn illustrate(&self, from_db: &Vec<Hash>) -> Result<String> {
+    pub fn illustrate(&self, from_db: &[Hash]) -> Result<String> {
         // Print out the structure of the cache (fairly slowly!).
         let mut by_hash: HashMap<Hash, HashSet<u128>> = HashMap::new();
         let mut result = String::new();
@@ -123,10 +123,7 @@ impl BlockCache {
 
         for (key, entry) in self.cache.iter().chain(self.head_cache.iter()) {
             let hash = entry.proposal.hash();
-            by_hash
-                .entry(hash)
-                .or_insert_with(|| HashSet::new())
-                .insert(*key);
+            by_hash.entry(hash).or_default().insert(*key);
         }
 
         for (key, entry) in self.cache.iter().chain(self.head_cache.iter()) {
@@ -154,7 +151,7 @@ impl BlockCache {
                 }
             }
         }
-        result.push_str("\n");
+        result.push('\n');
         Ok(result)
     }
 
@@ -188,7 +185,7 @@ impl BlockCache {
         Ok(self
             .by_hash
             .get(hash)
-            .map(|entry_set: &HashSet<u128>| {
+            .and_then(|entry_set: &HashSet<u128>| {
                 entry_set
                     .iter()
                     .take(1)
@@ -199,8 +196,7 @@ impl BlockCache {
                             .map(|entry| entry.proposal.clone())
                     })
                     .last()
-            })
-            .flatten())
+            }))
     }
 
     /// Find any view gaps known to exist in the cache and add them to the known view gap
@@ -276,7 +272,7 @@ impl BlockCache {
             .head_cache
             .range::<u128, _>((Bound::Included(key), Bound::Unbounded));
         if let Some((_, v)) = head_iter.next() {
-            return Some((v.proposal.view(), v.proposal.number()));
+            Some((v.proposal.view(), v.proposal.number()))
         } else {
             None
         }
@@ -494,11 +490,8 @@ impl BlockCache {
                         .get_mut(&entry.parent_hash)
                         .map(|x| x.remove(&key))
                 });
-            by_parent_hash
-                .entry(*parent_hash)
-                .or_insert(HashSet::new())
-                .insert(key);
-            by_hash.entry(hash).or_insert(HashSet::new()).insert(key);
+            by_parent_hash.entry(*parent_hash).or_default().insert(key);
+            by_hash.entry(hash).or_default().insert(key);
         }
 
         if proposal.header.view <= highest_confirmed_view {
@@ -1515,7 +1508,7 @@ impl BlockStore {
         }
     }
 
-    pub fn illustrate(&self, from_db: &Vec<Hash>) -> Result<String> {
+    pub fn illustrate(&self, from_db: &[Hash]) -> Result<String> {
         self.buffered.illustrate(from_db)
     }
 }
diff --git a/zilliqa/src/cfg.rs b/zilliqa/src/cfg.rs
index d4ace0a9e..c0546c331 100644
--- a/zilliqa/src/cfg.rs
+++ b/zilliqa/src/cfg.rs
@@ -1,4 +1,4 @@
-use std::{ops::Deref, str::FromStr, time::Duration};
+use std::{net::Ipv4Addr, ops::Deref, str::FromStr, time::Duration};
 
 use alloy::primitives::Address;
 use libp2p::{Multiaddr, PeerId};
@@ -9,7 +9,6 @@ use crate::{
     crypto::{Hash, NodePublicKey},
     transaction::EvmGas,
 };
-use std::net::Ipv4Addr;
 
 // Note that z2 constructs instances of this to save as a configuration so it must be both
 // serializable and deserializable.
diff --git a/zilliqa/src/director.rs b/zilliqa/src/director.rs
index 15e06be45..c324990cb 100644
--- a/zilliqa/src/director.rs
+++ b/zilliqa/src/director.rs
@@ -1,8 +1,9 @@
 // Director: directs the behaviour of other parts of the system.
 
+use std::collections::HashSet;
+
 use anyhow::Result;
 use libp2p::PeerId;
-use std::collections::HashSet;
 use tracing::*;
 
 #[derive(Debug)]
diff --git a/zilliqa/tests/it/consensus.rs b/zilliqa/tests/it/consensus.rs
index 9e2c6099a..9764f665b 100644
--- a/zilliqa/tests/it/consensus.rs
+++ b/zilliqa/tests/it/consensus.rs
@@ -99,7 +99,7 @@ async fn block_production(mut network: Network) {
                     .map_or(0, |b| b.number())
                     >= 5
             },
-            50,
+            100,
         )
         .await
         .unwrap();
diff --git a/zilliqa/tests/it/eth.rs b/zilliqa/tests/it/eth.rs
index 54d55ed00..73750d05b 100644
--- a/zilliqa/tests/it/eth.rs
+++ b/zilliqa/tests/it/eth.rs
@@ -1427,7 +1427,7 @@ async fn test_eth_syncing(mut network: Network) {
     network
         .run_until_async(
             || async { wallet.get_block_number().await.unwrap().as_u64() > 4 },
-            50,
+            100,
         )
         .await
         .unwrap();