Replace regex in trie diff main (#758)

* Replace trie diff regex

* RM previous regex crate

zero/Cargo.toml

@@ -26,14 +26,14 @@ hashbrown.workspace = true
 hex.workspace = true
 itertools.workspace = true
 keccak-hash.workspace = true
+lazy-regex = "3.3.0"
 lru.workspace = true
 mpt_trie.workspace = true
 num-traits.workspace = true
 once_cell.workspace = true
 paladin-core.workspace = true
 plonky2.workspace = true
 plonky2_maybe_rayon.workspace = true
-regex = "1.5.4"
 rlp.workspace = true
 ruint = { workspace = true, features = ["num-traits", "primitive-types"] }
 serde.workspace = true

zero/src/bin/trie_diff.rs

@@ -20,9 +20,9 @@ use anyhow::Result;
 use clap::{Parser, ValueHint};
 use evm_arithmetization::generation::DebugOutputTries;
 use futures::{future, TryStreamExt};
+use lazy_regex::regex_captures;
 use paladin::directive::{Directive, IndexedStream};
 use paladin::runtime::Runtime;
-use regex::Regex;
 use trace_decoder::observer::TriesObserver;
 use tracing::{error, info};
 use zero::ops::register;
@@ -132,10 +132,11 @@ async fn main() -> Result<()> {
         {
             // Try to parse block and batch index from error message.
             let error_message = e2.to_string();
-            let re = Regex::new(r"block:(\d+) batch:(\d+)")?;
-            if let Some(cap) = re.captures(&error_message) {
-                let block_number: u64 = cap[1].parse()?;
-                let batch_index: usize = cap[2].parse()?;
+            if let Some((_, block_number, block_index)) =
+                regex_captures!(r"block:(\d+) batch:(\d+)", error_message.as_str())
+            {
+                let block_number: u64 = block_number.parse()?;
+                let batch_index: usize = block_index.parse()?;
 
                 let prover_tries =
                     zero::debug_utils::load_tries_from_disk(block_number, batch_index)?;