Standard output
1597915312545 Test testAsync0: 1/0 - execute
1597915312545 Test testAsync0: 1/0 - sleeping
1597915312545 Test testAsync1: 1/0 - execute
1597915312546 Test testAsync1: 1/0 - sleeping
1597915312545 Test testAsync3: 1/0 - execute
1597915312546 Test testAsync3: 1/0 - sleeping
1597915312546 Test testAsync4: 1/0 - execute
1597915312546 Test testAsync4: 1/0 - sleeping
1597915312547 Test testAsync2: 1/0 - execute
1597915312547 Test testAsync2: 1/0 - sleeping
1597915316545 Test testAsync0: 1/0 - complete
1597915316546 Test testAsync1: 1/0 - complete
1597915316547 Test testAsync3: 1/0 - complete
1597915316547 Test testAsync4: 1/0 - complete
1597915316547 Test testAsync2: 1/0 - complete