diff --git a/cmd/kubent/main.go b/cmd/kubent/main.go
index d9f93d79..fc54bc0c 100644
--- a/cmd/kubent/main.go
+++ b/cmd/kubent/main.go
@@ -27,27 +27,28 @@ var (
 )
 
 const (
-	EXIT_CODE_SUCCESS      = 0
-	EXIT_CODE_FAIL_GENERIC = 1
-	EXIT_CODE_FOUND_ISSUES = 200
+	EXIT_CODE_SUCCESS             = 0
+	EXIT_CODE_FAIL_GENERIC        = 1
+	EXIT_CODE_FAIL_GET_COLLECTORS = 100
+	EXIT_CODE_FOUND_ISSUES        = 200
 )
 
 func generateUserAgent() string {
 	return fmt.Sprintf("kubent (%s/%s)", version, gitSha)
 }
 
-func getCollectors(collectors []collector.Collector) []map[string]interface{} {
+func getCollectors(collectors []collector.Collector) ([]map[string]interface{}, error) {
 	var inputs []map[string]interface{}
 	for _, c := range collectors {
 		rs, err := c.Get()
 		if err != nil {
 			log.Error().Err(err).Str("name", c.Name()).Msg("Failed to retrieve data from collector")
-		} else {
-			inputs = append(inputs, rs...)
-			log.Info().Str("name", c.Name()).Msgf("Retrieved %d resources from collector", len(rs))
+			return nil, err
 		}
+		inputs = append(inputs, rs...)
+		log.Info().Str("name", c.Name()).Msgf("Retrieved %d resources from collector", len(rs))
 	}
-	return inputs
+	return inputs, nil
 }
 
 func storeCollector(collector collector.Collector, err error, collectors []collector.Collector) []collector.Collector {
@@ -87,7 +88,6 @@ func getServerVersion(cv *judge.Version, collectors []collector.Collector) (*jud
 				if err != nil {
 					return nil, fmt.Errorf("failed to detect k8s version: %w", err)
 				}
-
 				return version, nil
 			}
 		}
@@ -118,12 +118,15 @@ func main() {
 	log.Info().Msg("Initializing collectors and retrieving data")
 	initCollectors := initCollectors(config)
 
-	config.TargetVersion, err = getServerVersion(config.TargetVersion, initCollectors)
+	config.TargetVersion, _ = getServerVersion(config.TargetVersion, initCollectors)
 	if config.TargetVersion != nil {
 		log.Info().Msgf("Target K8s version is %s", config.TargetVersion.String())
 	}
 
-	collectors := getCollectors(initCollectors)
+	collectors, err := getCollectors(initCollectors)
+	if err != nil {
+		os.Exit(EXIT_CODE_FAIL_GET_COLLECTORS)
+	}
 
 	// this could probably use some error checking in future, but
 	// schema.ParseKindArg does not return any error
diff --git a/cmd/kubent/main_test.go b/cmd/kubent/main_test.go
index 80fc2195..fe81a8de 100644
--- a/cmd/kubent/main_test.go
+++ b/cmd/kubent/main_test.go
@@ -5,7 +5,6 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"errors"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -49,7 +48,7 @@ func TestGetCollectors(t *testing.T) {
 	initCollectors := []collector.Collector{}
 	initCollectors = append(initCollectors, fileCollector)
 
-	collectors := getCollectors(initCollectors)
+	collectors, _ := getCollectors(initCollectors)
 
 	if collectors != nil && len(collectors) != 1 {
 		t.Errorf("Did not get file collector correctly with error: %s", err)
@@ -102,7 +101,7 @@ func TestStoreCollectorError(t *testing.T) {
 }
 
 func TestMainExitCodes(t *testing.T) {
-	tmpDir, err := ioutil.TempDir(os.TempDir(), "kubent-tests-")
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "kubent-tests-")
 	if err != nil {
 		t.Fatalf("failed to create temp dir for testing: %v", err)
 	}
@@ -128,6 +127,7 @@ func TestMainExitCodes(t *testing.T) {
 		{"version long flag set", []string{"--version"}, 0, "", "", false},
 		{"empty text output", []string{clusterFlagDisabled, helm3FlagDisabled}, 0, "", "", false},
 		{"empty json output", []string{"-o=json", clusterFlagDisabled, helm3FlagDisabled}, 0, "[]\n", "", false},
+		{"fail to get collectors", []string{"-o=json", "-f=fail"}, 100, "[]\n", "", false},
 		{"json-file", []string{"-o=json", clusterFlagDisabled, helm3FlagDisabled, "-f=" + filepath.Join(FIXTURES_DIR, "deployment-v1beta1.yaml")}, 0, "", filepath.Join(tmpDir, "json-file.out"), false},
 		{"text-file", []string{"-o=text", clusterFlagDisabled, helm3FlagDisabled, "-f=" + filepath.Join(FIXTURES_DIR, "deployment-v1beta1.yaml")}, 0, "", filepath.Join(tmpDir, "text-file.out"), false},
 		{"json-stdout", []string{"-o=json", clusterFlagDisabled, helm3FlagDisabled, "-f=" + filepath.Join(FIXTURES_DIR, "deployment-v1beta1.yaml")}, 0, string(expectedJsonOutput), "-", false},
@@ -268,8 +268,8 @@ func decodeBase64(dst *[]string, encoded string) error {
 
 func Test_outputResults(t *testing.T) {
 	testVersion, _ := judge.NewVersion("4.5.6")
-	testResults := []judge.Result{{"name", "ns", "kind",
-		"1.2.3", "rs", "rep", testVersion}}
+	testResults := []judge.Result{{Name: "name", Namespace: "ns", Kind: "kind",
+		ApiVersion: "1.2.3", RuleSet: "rs", ReplaceWith: "rep", Since: testVersion}}
 
 	type args struct {
 		results    []judge.Result