go test -v -tags=e2e -count=1 ./test/conformance/...
go test -v -timeout 30s -tags e2e knative.dev/eventing/test/conformance -run ^TestMustPassTracingHeaders$
go test -v -timeout 30s -tags e2e knative.dev/eventing/test/conformance -run ^TestMustPassTracingHeaders$ --kubeconfig $KUBECONFIG