diff --git a/src/task/builder.rs b/src/task/builder.rs
index 3b71a53..cbb3187 100644
--- a/src/task/builder.rs
+++ b/src/task/builder.rs
@@ -54,6 +54,11 @@ impl Builder {
     {
         let wrapped = self.build(future);
 
+        kv_log_macro::trace!("spawn", {
+            task_id: wrapped.tag.id().0,
+            parent_task_id: TaskLocalsWrapper::get_current(|t| t.id().0).unwrap_or(0),
+        });
+
         let task = wrapped.tag.task().clone();
         let smol_task = smol::Task::spawn(wrapped).into();
 
@@ -69,6 +74,11 @@ impl Builder {
     {
         let wrapped = self.build(future);
 
+        kv_log_macro::trace!("spawn_local", {
+            task_id: wrapped.tag.id().0,
+            parent_task_id: TaskLocalsWrapper::get_current(|t| t.id().0).unwrap_or(0),
+        });
+
         let task = wrapped.tag.task().clone();
         let smol_task = smol::Task::local(wrapped).into();
 
@@ -89,6 +99,10 @@ impl Builder {
             let res = future.await;
             let _ = sender.send(res);
         });
+        kv_log_macro::trace!("spawn_local", {
+            task_id: wrapped.tag.id().0,
+            parent_task_id: TaskLocalsWrapper::get_current(|t| t.id().0).unwrap_or(0),
+        });
 
         let task = wrapped.tag.task().clone();
         wasm_bindgen_futures::spawn_local(wrapped);
@@ -111,6 +125,11 @@ impl Builder {
             let _ = sender.send(res);
         });
 
+        kv_log_macro::trace!("spawn_local", {
+            task_id: wrapped.tag.id().0,
+            parent_task_id: TaskLocalsWrapper::get_current(|t| t.id().0).unwrap_or(0),
+        });
+
         let task = wrapped.tag.task().clone();
         wasm_bindgen_futures::spawn_local(wrapped);