chore: add unused_async clippy lint, deny unreachable_pub

Cargo.toml

@@ -40,7 +40,10 @@ codegen-units = 1
 incremental = false
 
 [workspace.lints.rust]
-unreachable_pub = "warn"
+unreachable_pub = "deny"
+
+[workspace.lints.clippy]
+unused_async = "warn"
 
 [workspace.dependencies]
 reth = { git = "https://github.com/paradigmxyz/reth", tag = "v1.8.2" }

crates/op-rbuilder/src/bin/tester/main.rs

@@ -50,7 +50,7 @@ async fn main() -> eyre::Result<()> {
     let cli = Cli::parse();
 
     match cli.command {
-        Commands::Genesis { output } => generate_genesis(output).await,
+        Commands::Genesis { output } => generate_genesis(output),
         Commands::Run { validation, .. } => run_system(validation).await,
         Commands::Deposit { address, amount } => {
             let engine_api = EngineApi::with_http("http://localhost:4444");

crates/op-rbuilder/src/tests/framework/apis.rs

@@ -205,7 +205,7 @@ pub trait BlockApi {
     ) -> RpcResult<Option<alloy_rpc_types_eth::Block>>;
 }
 
-pub async fn generate_genesis(output: Option<String>) -> eyre::Result<()> {
+pub fn generate_genesis(output: Option<String>) -> eyre::Result<()> {
     // Read the template file
     let template = include_str!("artifacts/genesis.json.tmpl");