don't output Docker performance issues when user wants JSON

pkg/drivers/kic/oci/cli_runner.go

@@ -135,7 +135,7 @@ func runCmd(cmd *exec.Cmd, warnSlow ...bool) (*RunResult, error) {
 	start := time.Now()
 	err := cmd.Run()
 	elapsed := time.Since(start)
-	if warn {
+	if warn && !out.JSON {
 		if elapsed > warnTime {
 			warnLock.Lock()
 			_, ok := alreadyWarnedCmds[rr.Command()]

third_party/kubeadm/app/constants/constants_unix.go

@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 /*

third_party/kubeadm/app/constants/constants_windows.go

@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 /*