diff --git a/crates/config/src/observability/config.rs b/crates/config/src/observability/config.rs
index 0925a4d0..43f6adef 100644
--- a/crates/config/src/observability/config.rs
+++ b/crates/config/src/observability/config.rs
@@ -178,7 +178,7 @@ mod tests {
     fn test_observability_config_debug_format() {
         let config = ObservabilityConfig::new();
 
-        let debug_str = format!("{:?}", config);
+        let debug_str = format!("{config:?}");
         assert!(!debug_str.is_empty(), "Debug output should not be empty");
         assert!(debug_str.contains("ObservabilityConfig"), "Debug output should contain struct name");
         assert!(debug_str.contains("otel"), "Debug output should contain otel field");
diff --git a/crates/config/src/observability/file.rs b/crates/config/src/observability/file.rs
index 6ec74c8b..6a000103 100644
--- a/crates/config/src/observability/file.rs
+++ b/crates/config/src/observability/file.rs
@@ -47,7 +47,7 @@ fn default_path() -> String {
     let temp_dir = env::temp_dir().join("rustfs");
 
     if let Err(e) = std::fs::create_dir_all(&temp_dir) {
-        eprintln!("Failed to create log directory: {}", e);
+        eprintln!("Failed to create log directory: {e}");
         return "rustfs/rustfs.log".to_string();
     }