fix: hide multivm log warnings and traces (#310)

* fix: remove multivm logs

* remove println

* fix: lint

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "era_test_node"
-version = "0.1.0-alpha.24"
+version = "0.1.0-alpha.25"
 edition = "2018"
 authors = ["The Matter Labs Team <[email protected]>"]
 homepage = "https://zksync.io/"

src/main.rs

@@ -203,11 +203,8 @@ async fn main() -> anyhow::Result<()> {
     let log_file = File::create(config.log.file_path)?;
 
     // Initialize the tracing subscriber
-    let observability = Observability::init(
-        vec!["era_test_node".into(), "multivm".into()],
-        log_level_filter,
-        log_file,
-    )?;
+    let observability =
+        Observability::init(vec!["era_test_node".into()], log_level_filter, log_file)?;
 
     // Use `Command::Run` as default.
     let command = opt.command.as_ref().unwrap_or(&Command::Run);

src/observability.rs

@@ -58,7 +58,10 @@ impl Observability {
         log_file: File,
     ) -> Result<Self, anyhow::Error> {
         let joined_filter = binary_names
-            .join(format!("={},", log_level_filter.to_string().to_lowercase()).as_str());
+            .iter()
+            .map(|x| format!("{}={}", x, log_level_filter.to_string().to_lowercase()))
+            .collect::<Vec<String>>()
+            .join(",");
         let filter = Self::parse_filter(&joined_filter)?;
         let (filter, reload_handle) = reload::Layer::new(filter);