debug: log check errors and trace post_result calls

apps/monitor/src/runner.rs

@@ -104,16 +104,19 @@ async fn run_check(client: &reqwest::Client, monitor: &Monitor, scheduled_at: Op
     let result = curl_result;
 
     match result {
-        Err(e) => PingResult {
-            monitor_id: monitor.id.clone(),
-            scheduled_at,
-            jitter_ms,
-            status_code: None,
-            latency_ms: Some(latency_ms),
-            up: false,
-            error: Some(e),
-            cert_expiry_days: None,
-            meta: None,
+        Err(ref e) => {
+            warn!("{} check error: {e}", monitor.url);
+            PingResult {
+                monitor_id: monitor.id.clone(),
+                scheduled_at,
+                jitter_ms,
+                status_code: None,
+                latency_ms: Some(latency_ms),
+                up: false,
+                error: Some(e.clone()),
+                cert_expiry_days: None,
+                meta: None,
+            }
         },
         Ok((status_code, headers, body)) => {
             let status = status_code;