minor fixes

examples/advanced/examples/reth_db_layer.rs

@@ -1,5 +1,6 @@
 //! `RethDbLayer` implementation to be used with `RethDbProvider` to wrap the Provider trait over
 //! reth-db.
+
 #![allow(dead_code)]
 use std::path::PathBuf;
 

examples/advanced/examples/reth_db_provider.rs

@@ -10,6 +10,7 @@
 //! their own implementation of the `Provider` trait and fetch results from any source.
 //!
 //! Learn more about `ProviderCall` [here](https://github.com/alloy-rs/alloy/pull/788).
+
 use std::{marker::PhantomData, path::PathBuf, sync::Arc};
 
 use alloy::{

examples/big-numbers/examples/comparison_equivalence.rs

@@ -1,10 +1,11 @@
 //! Example of comparison and equivalence of `U256` instances.
 
 use alloy::primitives::U256;
+use eyre::Result;
 
 /// `U256` implements traits in `std::cmp`, that means `U256` instances
 /// can be easily compared using standard Rust operators.
-fn main() {
+fn main() -> Result<()> {
     // a == b
     let a = U256::from(100_u32);
     let b = U256::from(100_u32);
@@ -33,4 +34,6 @@ fn main() {
     // a == 0
     let a = U256::ZERO;
     assert!(a.is_zero());
+
+    Ok(())
 }

examples/big-numbers/examples/create_instances.rs

@@ -1,11 +1,12 @@
 //! Example of creating instances of `U256` from strings and numbers.
 
+use std::str::FromStr;
+
 use alloy::primitives::{
     utils::{parse_units, ParseUnits},
     U256,
 };
 use eyre::Result;
-use std::str::FromStr;
 
 fn main() -> Result<()> {
     // From strings

examples/big-numbers/examples/math_operations.rs

@@ -1,8 +1,9 @@
 //! Example of performing arithmetic operations with `U256`.
 
+use std::ops::{Div, Mul};
+
 use alloy::primitives::{utils::format_units, U256};
 use eyre::Result;
-use std::ops::{Div, Mul};
 
 /// `U256` implements traits in `std::ops`, that means it supports arithmetic operations
 /// using standard Rust operators `+`, `-`. `*`, `/`, `%`, along with additional utilities to

examples/comparison/examples/compare_new_heads.rs

@@ -1,5 +1,7 @@
 //! Example of comparing new block headers from multiple providers.
 
+use std::{collections::HashMap, sync::Arc};
+
 use alloy::{
     network::AnyNetwork,
     providers::{Provider, ProviderBuilder},
@@ -8,7 +10,6 @@ use chrono::Utc;
 use clap::Parser;
 use eyre::Result;
 use futures_util::StreamExt;
-use std::{collections::HashMap, sync::Arc};
 use tokio::sync::mpsc;
 
 #[derive(Debug, Parser)]

examples/layers/examples/logging_layer.rs

@@ -1,6 +1,13 @@
 //! This examples demonstrates how to implement your own custom transport layer.
 //! As a demonstration we implement a simple request / response logging layer.
 
+use std::{
+    fmt::Debug,
+    future::{Future, IntoFuture},
+    pin::Pin,
+    task::{Context, Poll},
+};
+
 use alloy::{
     node_bindings::Anvil,
     providers::{Provider, ProviderBuilder},
@@ -11,12 +18,6 @@ use alloy::{
     transports::TransportError,
 };
 use eyre::Result;
-use std::{
-    fmt::Debug,
-    future::{Future, IntoFuture},
-    pin::Pin,
-    task::{Context, Poll},
-};
 use tower::{Layer, Service};
 
 struct LoggingLayer;

examples/primitives/examples/hashing_functions.rs

@@ -1,7 +1,7 @@
 //! Example of basic usage of hashing functions.
 
 use alloy::primitives::{eip191_hash_message, keccak256};
-use eyre::{Ok, Result};
+use eyre::Result;
 
 fn main() -> Result<()> {
     // [`Keccak-256`]: https://en.wikipedia.org/wiki/SHA-3

examples/providers/examples/batch_rpc.rs

@@ -9,6 +9,8 @@ use eyre::Result;
 
 #[tokio::main]
 async fn main() -> Result<()> {
+    // Spin up a local Anvil node.
+    // Ensure `anvil` is available in $PATH.
     let anvil = Anvil::new().spawn();
 
     // Swap this out with a RPC_URL provider that supports JSON-RPC batch requests. e.g. https://eth.merkle.io
@@ -28,7 +30,6 @@ async fn main() -> Result<()> {
         batch.add_call("eth_gasPrice", &())?.map_resp(|resp: U128| resp.to::<u128>());
 
     let vitalik = address!("d8da6bf26964af9d7eed9e03e53415d37aa96045");
-
     let vitalik_nonce_fut = batch
         .add_call("eth_getTransactionCount", &(vitalik, "latest"))? // Vitalik's nonce at BlockId::Latest
         .map_resp(|resp: U128| resp.to::<u128>());

examples/subscriptions/examples/event_multiplexer.rs

@@ -1,5 +1,7 @@
 //! Example of multiplexing the watching of event logs.
 
+use std::str::FromStr;
+
 use alloy::{
     node_bindings::Anvil,
     primitives::I256,
@@ -9,7 +11,6 @@ use alloy::{
 };
 use eyre::Result;
 use futures_util::StreamExt;
-use std::str::FromStr;
 
 // Codegen from embedded Solidity code and precompiled bytecode.
 // solc v0.8.26; solc EventMultiplexer.sol --via-ir --optimize --bin

examples/transactions/examples/trace_call_many.rs

@@ -7,8 +7,7 @@ use alloy::{
     providers::{ext::TraceApi, ProviderBuilder},
     rpc::types::{trace::parity::TraceType, TransactionRequest},
 };
-
-use eyre::{Ok, Result};
+use eyre::Result;
 
 #[tokio::main]
 async fn main() -> Result<()> {

examples/wallets/examples/create_keystore.rs

@@ -1,9 +1,10 @@
 //! Example of creating a keystore file from a private key and password, and then reading it back.
 
+use std::fs::read_to_string;
+
 use alloy::{primitives::hex, signers::local::LocalSigner};
 use eyre::Result;
 use rand::thread_rng;
-use std::fs::read_to_string;
 use tempfile::tempdir;
 
 #[tokio::main]

examples/wallets/examples/gcp_signer.rs

@@ -4,7 +4,7 @@ use alloy::signers::{
     gcp::{GcpKeyRingRef, GcpSigner, KeySpecifier},
     Signer,
 };
-use eyre::{Ok, Result};
+use eyre::Result;
 use gcloud_sdk::{
     google::cloud::kms::v1::key_management_service_client::KeyManagementServiceClient, GoogleApi,
 };

examples/wallets/examples/keystore_signer.rs

@@ -1,5 +1,7 @@
 //! Example of using a keystore wallet to sign and send a transaction.
 
+use std::path::PathBuf;
+
 use alloy::{
     network::{EthereumWallet, TransactionBuilder},
     primitives::{address, U256},
@@ -8,7 +10,6 @@ use alloy::{
     signers::local::LocalSigner,
 };
 use eyre::Result;
-use std::{env, path::PathBuf};
 
 #[tokio::main]
 async fn main() -> Result<()> {
@@ -18,7 +19,7 @@ async fn main() -> Result<()> {
     // Set up signer using Alice's keystore file.
     // The private key belongs to Alice, the first default Anvil account.
     let keystore_file_path =
-        PathBuf::from(env::var("CARGO_MANIFEST_DIR")?).join("examples/keystore/alice.json");
+        PathBuf::from(std::env::var("CARGO_MANIFEST_DIR")?).join("examples/keystore/alice.json");
     let signer = LocalSigner::decrypt_keystore(keystore_file_path, password)?;
     let wallet = EthereumWallet::from(signer);
 

examples/wallets/examples/verify_message.rs

@@ -1,7 +1,7 @@
 //! Example of verifying that a message was signed by the provided address.
 
 use alloy::signers::{local::PrivateKeySigner, SignerSync};
-use eyre::{Ok, Result};
+use eyre::Result;
 
 #[tokio::main]
 async fn main() -> Result<()> {