diff --git a/node/Cargo.lock b/node/Cargo.lock
index 9fc74d80..286a4b6d 100644
--- a/node/Cargo.lock
+++ b/node/Cargo.lock
@@ -2391,6 +2391,8 @@ dependencies = [
  "serde",
  "serde_json",
  "tokio",
+ "tracing",
+ "tracing-subscriber",
  "zksync_protobuf_build",
 ]
 
diff --git a/node/libs/protobuf/Cargo.toml b/node/libs/protobuf/Cargo.toml
index c2f3f4f0..fc4ff927 100644
--- a/node/libs/protobuf/Cargo.toml
+++ b/node/libs/protobuf/Cargo.toml
@@ -14,12 +14,14 @@ anyhow.workspace = true
 bit-vec.workspace = true
 serde.workspace = true
 quick-protobuf.workspace = true
+once_cell.workspace = true
 prost.workspace = true
 prost-reflect.workspace = true
 rand.workspace = true
 serde_json.workspace = true
 tokio.workspace = true
-once_cell.workspace = true
+tracing.workspace = true
+tracing-subscriber.workspace = true
 
 zksync_protobuf_build.workspace = true
 concurrency = { path = "../concurrency" }
diff --git a/node/libs/protobuf/src/bin/conformance_test/conformance_test_failure_list.txt b/node/libs/protobuf/src/bin/conformance_test/failure_list.txt
similarity index 100%
rename from node/libs/protobuf/src/bin/conformance_test/conformance_test_failure_list.txt
rename to node/libs/protobuf/src/bin/conformance_test/failure_list.txt
diff --git a/node/libs/protobuf/src/bin/conformance_test/main.rs b/node/libs/protobuf/src/bin/conformance_test/main.rs
index f1c3fce9..584c85da 100644
--- a/node/libs/protobuf/src/bin/conformance_test/main.rs
+++ b/node/libs/protobuf/src/bin/conformance_test/main.rs
@@ -1,19 +1,20 @@
 //! Conformance test for our canonical encoding implemented according to
 //! https://github.com/protocolbuffers/zksync_protobuf/blob/main/conformance/conformance.proto
 //! Our implementation supports only a subset of proto functionality, so
-//! `schema/proto/conformance/conformance.proto` and
-//! `schema/proto/conformance/zksync_protobuf_test_messages.proto` contains only a
+//! `proto/conformance.proto` and
+//! `proto/protobuf_test_messages.proto` contains only a
 //! subset of original fields. Also we run only proto3 binary -> binary tests.
-//! conformance_test_failure_list.txt contains tests which are expected to fail.
+//! failure_list.txt contains tests which are expected to fail.
 use anyhow::Context as _;
 use concurrency::{ctx, io};
 use prost::Message as _;
 use prost_reflect::ReflectMessage;
+use std::sync::Mutex;
 
 mod proto;
 
-#[tokio::main]
-async fn main() -> anyhow::Result<()> {
+/// Runs the test server.
+async fn run() -> anyhow::Result<()> {
     let ctx = &ctx::root();
     let stdin = &mut tokio::io::stdin();
     let stdout = &mut tokio::io::stdout();
@@ -31,7 +32,7 @@ async fn main() -> anyhow::Result<()> {
         let req = proto::ConformanceRequest::decode(&msg[..])?;
         let res = async {
             let t = req.message_type.context("missing message_type")?;
-            if t != *"zksync_protobuf_test_messages.proto3.TestAllTypesProto3" {
+            if t != *"protobuf_test_messages.proto3.TestAllTypesProto3" {
                 return Ok(R::Skipped("unsupported".to_string()));
             }
 
@@ -87,3 +88,24 @@ async fn main() -> anyhow::Result<()> {
         io::flush(ctx, stdout).await??;
     }
 }
+
+#[tokio::main]
+async fn main() {
+    let sub = tracing_subscriber::fmt()
+        .with_env_filter(tracing_subscriber::EnvFilter::from_default_env());
+    match std::env::var("LOG_FILE") {
+        Err(_) => sub.with_writer(std::io::stderr).init(),
+        Ok(path) => sub
+            .with_writer(Mutex::new(
+                std::fs::File::options()
+                    .create(true)
+                    .append(true)
+                    .open(path)
+                    .unwrap(),
+            ))
+            .init(),
+    };
+    if let Err(err) = run().await {
+        tracing::error!("run(): {err:#}");
+    }
+}