Add RUST_LOG info default for local-backend (#23913)

Makes precompiled binary give logs by default.

GitOrigin-RevId: c2017d3861480852707dc890faadb95420e1331f

Author: nipunn1313

crates/local_backend/src/main.rs

@@ -37,6 +37,9 @@ use tokio::signal::{
 };
 
 fn main() -> Result<(), MainError> {
+    if std::env::var_os("RUST_LOG").is_none() {
+        std::env::set_var("RUST_LOG", "info");
+    }
     tracing::info!("Starting a local backend");
     let _guard = config_tool();
     let config = LocalConfig::parse();