alert: fix race when marshalling result
alert: fix race when marshalling result

skydive-project/skydive,lebauce/skydive,skydive-project/skydive,safchain/skydive,skydive-project/skydive,safchain/skydive,safchain/skydive,lebauce/skydive,skydive-project/skydive,lebauce/skydive,lebauce/skydive,safchain/skydive,lebauce/skydive,skydive-project/skydive,lebauce/skydive,skydive-project/skydive,skydive-project/skydive,safchain/skydive,lebauce/skydive,safchain/skydive,safchain/skydive,safchain/skydive,lebauce/skydive