net/http/httptrace.ClientTrace.ConnectStart (field)

5 uses

	net/http/httptrace (current package)
		trace.go#L44: 			ConnectStart: trace.ConnectStart,
		trace.go#L126: 	ConnectStart func(network, addr string)
		trace.go#L233: 	return t.DNSStart != nil || t.DNSDone != nil || t.ConnectStart != nil || t.ConnectDone != nil

	github.com/prometheus/client_golang/prometheus/promhttp
		instrument_client.go#L163: 			ConnectStart: func(_, _ string) {

	go.opencensus.io/plugin/ochttp
		span_annotating_client_trace.go#L52: 		ConnectStart:         sa.connectStart,