trace.go
func (t *trace) LazyLog(x fmt.Stringer, sensitive bool) {
	Log.Println(logMessageWithTrace(t, x.String()))
	t.trace.LazyLog(x, sensitive)
}
func (t *trace) LazyLog(x fmt.Stringer, sensitive bool) {
	Log.Println(logMessageWithTrace(t, x.String()))
	t.trace.LazyLog(x, sensitive)
}
// LazyLog adds x to the event log. It will be evaluated each time the
// /debug/requests page is rendered. Any memory referenced by x will be
// pinned until the trace is finished and later discarded.