fix: Replace unwrap() calls with error logging in collection loop

JSON serialization and file write can fail at runtime (e.g. disk
full). Log the error and continue the loop instead of crashing,
since this tool may run continuously for hours.

Author: lfrancke

src/main.rs

@@ -72,9 +72,24 @@ async fn main() {
 
         let system_information = SystemInformation::collect(&mut collect_ctx).await;
 
-        let serialized = serde_json::to_string_pretty(&system_information).unwrap();
-        if let Some(output_path) = &opts.output {
-            std::fs::write(output_path, &serialized).unwrap();
+        match serde_json::to_string_pretty(&system_information) {
+            Ok(serialized) => {
+                if let Some(output_path) = &opts.output
+                    && let Err(err) = std::fs::write(output_path, &serialized)
+                {
+                    tracing::error!(
+                        path = %output_path.display(),
+                        error = &err as &dyn std::error::Error,
+                        "failed to write JSON output file"
+                    );
+                }
+            }
+            Err(err) => {
+                tracing::error!(
+                    error = &err as &dyn std::error::Error,
+                    "failed to serialize system information"
+                );
+            }
         }
 
         match opts.loop_interval {