build(deps): bump github.com/prometheus/client_golang in /tools

Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.11.1 to 1.23.2. - [Release notes](https://github.com/prometheus/client_golang/releases) - [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md) - [Commits](https://github.com/prometheus/client_golang/compare/v1.11.1...v1.23.2) --- updated-dependencies: - dependency-name: github.com/prometheus/client_golang dependency-version: 1.23.2 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>
2026-05-22 20:49:08 +08:00 · 2026-04-13 23:30:44 +00:00
20 changed files with 277 additions and 1081 deletions
--- a/asynq.go
+++ b/asynq.go
@@ -40,7 +40,6 @@ type Task struct {
 func (t *Task) Type() string               { return t.typename }
 func (t *Task) Payload() []byte            { return t.payload }
 func (t *Task) Headers() map[string]string { return t.headers }
-func (t *Task) Options() []Option          { return t.opts }

 // ResultWriter returns a pointer to the ResultWriter associated with the task.
 //
@@ -472,7 +471,7 @@ func (opt RedisClusterClientOpt) MakeRedisClient() interface{} {
 //	redis://[:password@]host[:port][/dbnumber]
 //	rediss://[:password@]host[:port][/dbnumber]
 //	redis-socket://[:password@]path[?db=dbnumber]
-//	redis-sentinel://[:password@]host1[:port][,host2:[:port]][,hostN:[:port]][/dbnumber][?master=masterName]
+//	redis-sentinel://[:password@]host1[:port][,host2:[:port]][,hostN:[:port]][?master=masterName]
 func ParseRedisURI(uri string) (RedisConnOpt, error) {
 	u, err := url.Parse(uri)
 	if err != nil {
@@ -546,20 +545,11 @@ func parseRedisSocketURI(u *url.URL) (RedisConnOpt, error) {
 func parseRedisSentinelURI(u *url.URL) (RedisConnOpt, error) {
 	addrs := strings.Split(u.Host, ",")
 	master := u.Query().Get("master")
-	var db int
-	var err error
-	if len(u.Path) > 0 {
-		xs := strings.Split(strings.Trim(u.Path, "/"), "/")
-		db, err = strconv.Atoi(xs[0])
-		if err != nil {
-			return nil, fmt.Errorf("asynq: could not parse redis sentinel uri: database number should be the first segment of the path")
-		}
-	}
 	var password string
 	if v, ok := u.User.Password(); ok {
 		password = v
 	}
-	return RedisFailoverClientOpt{MasterName: master, SentinelAddrs: addrs, SentinelPassword: password, DB: db}, nil
+	return RedisFailoverClientOpt{MasterName: master, SentinelAddrs: addrs, SentinelPassword: password}, nil
 }

 // ResultWriter is a client interface to write result data for a task.
--- a/asynq_test.go
+++ b/asynq_test.go
@@ -10,7 +10,6 @@ import (
 	"sort"
 	"strings"
 	"testing"
-	"time"

 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
@@ -149,23 +148,6 @@ func TestParseRedisURI(t *testing.T) {
 				SentinelPassword: "mypassword",
 			},
 		},
-		{
-			"redis-sentinel://localhost:5000,localhost:5001,localhost:5002/3?master=mymaster",
-			RedisFailoverClientOpt{
-				MasterName:    "mymaster",
-				SentinelAddrs: []string{"localhost:5000", "localhost:5001", "localhost:5002"},
-				DB:            3,
-			},
-		},
-		{
-			"redis-sentinel://:mypassword@localhost:5000,localhost:5001,localhost:5002/7?master=mymaster",
-			RedisFailoverClientOpt{
-				MasterName:       "mymaster",
-				SentinelAddrs:    []string{"localhost:5000", "localhost:5001", "localhost:5002"},
-				SentinelPassword: "mypassword",
-				DB:               7,
-			},
-		},
 	}

 	for _, tc := range tests {
@@ -206,10 +188,6 @@ func TestParseRedisURIErrors(t *testing.T) {
 			"non integer for db numbers for socket",
 			"redis-socket:///some/path/to/redis?db=one",
 		},
-		{
-			"non integer for db number for sentinel",
-			"redis-sentinel://localhost:5000/abc?master=mymaster",
-		},
 	}

 	for _, tc := range tests {
@@ -220,30 +198,3 @@ func TestParseRedisURIErrors(t *testing.T) {
 		}
 	}
 }
-
-func TestTaskOptions(t *testing.T) {
-	opts := []Option{
-		MaxRetry(3),
-		Queue("critical"),
-		Timeout(5 * time.Minute),
-	}
-	task := NewTask("mytask", []byte("payload"), opts...)
-
-	got := task.Options()
-	if len(got) != len(opts) {
-		t.Fatalf("task.Options() returned %d options, want %d", len(got), len(opts))
-	}
-	for i, o := range opts {
-		if got[i].String() != o.String() {
-			t.Errorf("task.Options()[%d] = %v, want %v", i, got[i], o)
-		}
-	}
-}
-
-func TestTaskOptionsNil(t *testing.T) {
-	task := NewTask("mytask", []byte("payload"))
-	got := task.Options()
-	if got != nil {
-		t.Errorf("task.Options() = %v, want nil for task with no options", got)
-	}
-}
--- a/client.go
+++ b/client.go
@@ -6,9 +6,7 @@ package asynq

 import (
 	"context"
-	"encoding/json"
 	"fmt"
-	"maps"
 	"strings"
 	"time"

@@ -62,7 +60,6 @@ const (
 	TaskIDOpt
 	RetentionOpt
 	GroupOpt
-	HeaderOpt
 )

 // Option specifies the task processing behavior.
@@ -89,7 +86,6 @@ type (
 	processInOption time.Duration
 	retentionOption time.Duration
 	groupOption     string
-	headerOption    [2]string
 )

 // MaxRetry returns an option to specify the max number of times
@@ -221,27 +217,6 @@ func (name groupOption) String() string     { return fmt.Sprintf("Group(%q)", st
 func (name groupOption) Type() OptionType   { return GroupOpt }
 func (name groupOption) Value() interface{} { return string(name) }

-// Header returns an option to associate the key-value header to the task.
-//
-// This option is composable with other Client options and can be used together
-// with other options like MaxRetry, Queue, etc. For use cases where headers
-// need to be combined with other options, using Header option is recommended.
-//
-// Alternatively, NewTaskWithHeaders can be used to create a task with headers
-// directly, which may be preferable when headers are an intrinsic part of the
-// task definition rather than enqueue-time configuration.
-func Header(key, value string) Option {
-	return headerOption{key, value}
-}
-
-func (h headerOption) String() string {
-	var bytes []byte
-	bytes, _ = json.Marshal(h)
-	return fmt.Sprintf("Header(%s)", bytes)
-}
-func (h headerOption) Type() OptionType   { return HeaderOpt }
-func (h headerOption) Value() interface{} { return [2]string{h[0], h[1]} }
-
 // ErrDuplicateTask indicates that the given task could not be enqueued since it's a duplicate of another task.
 //
 // ErrDuplicateTask error only applies to tasks enqueued with a Unique option.
@@ -262,7 +237,6 @@ type option struct {
 	processAt time.Time
 	retention time.Duration
 	group     string
-	headers   map[string]string
 }

 // composeOptions merges user provided options into the default options
@@ -277,7 +251,6 @@ func composeOptions(opts ...Option) (option, error) {
 		timeout:   0, // do not set to defaultTimeout here
 		deadline:  time.Time{},
 		processAt: time.Now(),
-		headers:   make(map[string]string),
 	}
 	for _, opt := range opts {
 		switch opt := opt.(type) {
@@ -317,9 +290,6 @@ func composeOptions(opts ...Option) (option, error) {
 				return option{}, errors.New("group key cannot be empty")
 			}
 			res.group = key
-		case headerOption:
-			key, value := opt[0], opt[1]
-			res.headers[key] = value
 		default:
 			// ignore unexpected option
 		}
@@ -415,7 +385,7 @@ func (c *Client) EnqueueContext(ctx context.Context, task *Task, opts ...Option)
 		ID:        opt.taskID,
 		Type:      task.Type(),
 		Payload:   task.Payload(),
-		Headers:   maps.Clone(task.Headers()),
+		Headers:   task.Headers(),
 		Queue:     opt.queue,
 		Retry:     opt.retry,
 		Deadline:  deadline.Unix(),
@@ -424,12 +394,6 @@ func (c *Client) EnqueueContext(ctx context.Context, task *Task, opts ...Option)
 		GroupKey:  opt.group,
 		Retention: int64(opt.retention.Seconds()),
 	}
-	if len(opt.headers) > 0 {
-		if msg.Headers == nil {
-			msg.Headers = make(map[string]string)
-		}
-		maps.Copy(msg.Headers, opt.headers)
-	}
 	now := time.Now()
 	var state base.TaskState
 	if opt.processAt.After(now) {
@@ -456,142 +420,6 @@ func (c *Client) EnqueueContext(ctx context.Context, task *Task, opts ...Option)
 	return newTaskInfo(msg, state, opt.processAt, nil), nil
 }

-// BatchEnqueueResult holds the result of enqueuing a single task within a batch.
-type BatchEnqueueResult struct {
-	TaskInfo *TaskInfo
-	Err      error
-}
-
-// BatchEnqueueContext enqueues multiple tasks in a single Redis pipeline round-trip,
-// returning a per-task result slice aligned with the input tasks slice.
-//
-// # Atomicity Guarantees
-//
-// There is no all-or-nothing guarantee across the batch. Each task is executed as
-// an independent Lua script inside a Redis pipeline. Individual scripts are atomic
-// (the existence check, hash write, and list/sorted-set push for one task cannot
-// be partially applied), but the pipeline as a whole is not wrapped in a
-// MULTI/EXEC transaction. This means:
-//
-//   - Partial success is possible: some tasks may be enqueued while others are not.
-//   - A task whose ID already exists in Redis is silently skipped (treated as a
-//     no-op by the Lua script), and its result will still show success.
-//   - If the Redis pipeline call itself fails (e.g. connection lost, context
-//     cancelled), every task that passed client-side validation receives that
-//     error — none of them can be assumed to have been enqueued.
-//
-// # Validation Errors (pre-pipeline)
-//
-// The following are caught before any Redis call and rejected in the
-// corresponding BatchEnqueueResult.Err without affecting other tasks:
-//
-//   - nil task
-//   - empty task type name
-//   - invalid options
-//   - group tasks (not supported in batch mode)
-//   - unique tasks (not supported in batch mode)
-//
-// # Supported Task Types
-//
-// Immediate and scheduled (via [ProcessAt] or [ProcessIn]) tasks are supported.
-// Group and unique tasks are rejected as described above.
-func (c *Client) BatchEnqueueContext(ctx context.Context, tasks []*Task, opts ...Option) []BatchEnqueueResult {
-	results := make([]BatchEnqueueResult, len(tasks))
-	if len(tasks) == 0 {
-		return results
-	}
-
-	type itemMeta struct {
-		state     base.TaskState
-		processAt time.Time
-	}
-
-	items := make([]base.BatchEnqueueItem, 0, len(tasks))
-	itemIndexes := make([]int, 0, len(tasks))
-	itemMetas := make([]itemMeta, 0, len(tasks))
-
-	for i, task := range tasks {
-		if task == nil {
-			results[i] = BatchEnqueueResult{Err: fmt.Errorf("task cannot be nil")}
-			continue
-		}
-		if strings.TrimSpace(task.Type()) == "" {
-			results[i] = BatchEnqueueResult{Err: fmt.Errorf("task typename cannot be empty")}
-			continue
-		}
-		merged := append(task.opts, opts...)
-		opt, err := composeOptions(merged...)
-		if err != nil {
-			results[i] = BatchEnqueueResult{Err: err}
-			continue
-		}
-		if opt.group != "" {
-			results[i] = BatchEnqueueResult{Err: fmt.Errorf("batch enqueue does not support group tasks")}
-			continue
-		}
-		if opt.uniqueTTL > 0 {
-			results[i] = BatchEnqueueResult{Err: fmt.Errorf("batch enqueue does not support unique tasks")}
-			continue
-		}
-		deadline := noDeadline
-		if !opt.deadline.IsZero() {
-			deadline = opt.deadline
-		}
-		timeout := noTimeout
-		if opt.timeout != 0 {
-			timeout = opt.timeout
-		}
-		if deadline.Equal(noDeadline) && timeout == noTimeout {
-			timeout = defaultTimeout
-		}
-		msg := &base.TaskMessage{
-			ID:        opt.taskID,
-			Type:      task.Type(),
-			Payload:   task.Payload(),
-			Headers:   task.Headers(),
-			Queue:     opt.queue,
-			Retry:     opt.retry,
-			Deadline:  deadline.Unix(),
-			Timeout:   int64(timeout.Seconds()),
-			Retention: int64(opt.retention.Seconds()),
-		}
-
-		now := time.Now()
-		scheduled := opt.processAt.After(now)
-
-		item := base.BatchEnqueueItem{Msg: msg}
-		var meta itemMeta
-		if scheduled {
-			item.ProcessAt = opt.processAt
-			meta = itemMeta{state: base.TaskStateScheduled, processAt: opt.processAt}
-		} else {
-			meta = itemMeta{state: base.TaskStatePending, processAt: now}
-		}
-
-		items = append(items, item)
-		itemIndexes = append(itemIndexes, i)
-		itemMetas = append(itemMetas, meta)
-	}
-
-	if len(items) == 0 {
-		return results
-	}
-
-	_, err := c.broker.BatchEnqueue(ctx, items)
-	if err != nil {
-		for _, idx := range itemIndexes {
-			results[idx] = BatchEnqueueResult{Err: err}
-		}
-		return results
-	}
-
-	for j, idx := range itemIndexes {
-		info := newTaskInfo(items[j].Msg, itemMetas[j].state, itemMetas[j].processAt, nil)
-		results[idx] = BatchEnqueueResult{TaskInfo: info}
-	}
-	return results
-}
-
 // Ping performs a ping against the redis connection.
 func (c *Client) Ping() error {
 	return c.broker.Ping()
--- a/client_test.go
+++ b/client_test.go
@@ -13,8 +13,6 @@ import (
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
 	"github.com/hibiken/asynq/internal/base"
-	"github.com/hibiken/asynq/internal/rdb"
-	"github.com/hibiken/asynq/internal/testbroker"
 	h "github.com/hibiken/asynq/internal/testutil"
 	"github.com/redis/go-redis/v9"
 )
@@ -1341,70 +1339,6 @@ func TestClientEnqueueWithHeaders(t *testing.T) {
 				},
 			},
 		},
-		{
-			desc: "Task with header option",
-			task: NewTask("store_data", []byte("data"), Header("channel", "email"), Header("user-id", "bob1234")),
-			opts: []Option{},
-			wantInfo: &TaskInfo{
-				Queue:         "default",
-				Type:          "store_data",
-				Payload:       []byte("data"),
-				Headers:       map[string]string{"channel": "email", "user-id": "bob1234"},
-				State:         TaskStatePending,
-				MaxRetry:      25,
-				Retried:       0,
-				LastErr:       "",
-				LastFailedAt:  time.Time{},
-				Timeout:       defaultTimeout,
-				Deadline:      time.Time{},
-				NextProcessAt: now,
-			},
-			wantPending: map[string][]*base.TaskMessage{
-				"default": {
-					{
-						Type:     "store_data",
-						Payload:  []byte("data"),
-						Headers:  map[string]string{"channel": "email", "user-id": "bob1234"},
-						Retry:    25,
-						Queue:    "default",
-						Timeout:  int64(defaultTimeout.Seconds()),
-						Deadline: noDeadline.Unix(),
-					},
-				},
-			},
-		},
-		{
-			desc: "Enqueue task with header option",
-			task: NewTask("store_data", []byte("data")),
-			opts: []Option{Header("channel", "email"), Header("user-id", "bob1234"), MaxRetry(5)},
-			wantInfo: &TaskInfo{
-				Queue:         "default",
-				Type:          "store_data",
-				Payload:       []byte("data"),
-				Headers:       map[string]string{"channel": "email", "user-id": "bob1234"},
-				State:         TaskStatePending,
-				MaxRetry:      5,
-				Retried:       0,
-				LastErr:       "",
-				LastFailedAt:  time.Time{},
-				Timeout:       defaultTimeout,
-				Deadline:      time.Time{},
-				NextProcessAt: now,
-			},
-			wantPending: map[string][]*base.TaskMessage{
-				"default": {
-					{
-						Type:     "store_data",
-						Payload:  []byte("data"),
-						Headers:  map[string]string{"channel": "email", "user-id": "bob1234"},
-						Retry:    5,
-						Queue:    "default",
-						Timeout:  int64(defaultTimeout.Seconds()),
-						Deadline: noDeadline.Unix(),
-					},
-				},
-			},
-		},
 	}

 	for _, tc := range tests {
@@ -1727,209 +1661,3 @@ func TestClientEnqueueWithHeadersAndGroup(t *testing.T) {
 		}
 	}
 }
-
-func TestBatchEnqueueContext_ImmediateTasks(t *testing.T) {
-	r := setup(t)
-	client := NewClient(getRedisConnOpt(t))
-	defer client.Close()
-
-	tasks := []*Task{
-		NewTask("task1", []byte("payload1")),
-		NewTask("task2", []byte("payload2")),
-		NewTask("task3", []byte("payload3")),
-	}
-
-	results := client.BatchEnqueueContext(context.Background(), tasks)
-	if len(results) != 3 {
-		t.Fatalf("BatchEnqueueContext returned %d results, want 3", len(results))
-	}
-	for i, res := range results {
-		if res.Err != nil {
-			t.Errorf("results[%d].Err = %v, want nil", i, res.Err)
-		}
-		if res.TaskInfo == nil {
-			t.Errorf("results[%d].TaskInfo is nil, want non-nil", i)
-			continue
-		}
-		if res.TaskInfo.Queue != "default" {
-			t.Errorf("results[%d].TaskInfo.Queue = %q, want %q", i, res.TaskInfo.Queue, "default")
-		}
-		if res.TaskInfo.State != TaskStatePending {
-			t.Errorf("results[%d].TaskInfo.State = %v, want %v", i, res.TaskInfo.State, TaskStatePending)
-		}
-	}
-
-	gotPending := h.GetPendingMessages(t, r, "default")
-	if len(gotPending) != 3 {
-		t.Errorf("len(pending) = %d, want 3", len(gotPending))
-	}
-}
-
-func TestBatchEnqueueContext_ScheduledTask(t *testing.T) {
-	r := setup(t)
-	client := NewClient(getRedisConnOpt(t))
-	defer client.Close()
-
-	future := time.Now().Add(1 * time.Hour)
-	tasks := []*Task{
-		NewTask("scheduled_task", []byte("payload"), ProcessAt(future)),
-	}
-
-	results := client.BatchEnqueueContext(context.Background(), tasks)
-	if len(results) != 1 {
-		t.Fatalf("BatchEnqueueContext returned %d results, want 1", len(results))
-	}
-	if results[0].Err != nil {
-		t.Fatalf("results[0].Err = %v, want nil", results[0].Err)
-	}
-	if results[0].TaskInfo == nil {
-		t.Fatal("results[0].TaskInfo is nil, want non-nil")
-	}
-	if results[0].TaskInfo.State != TaskStateScheduled {
-		t.Errorf("results[0].TaskInfo.State = %v, want %v", results[0].TaskInfo.State, TaskStateScheduled)
-	}
-
-	gotScheduled := h.GetScheduledMessages(t, r, "default")
-	if len(gotScheduled) != 1 {
-		t.Errorf("len(scheduled) = %d, want 1", len(gotScheduled))
-	}
-}
-
-func TestBatchEnqueueContext_MixedBatch(t *testing.T) {
-	r := setup(t)
-	client := NewClient(getRedisConnOpt(t))
-	defer client.Close()
-
-	future := time.Now().Add(1 * time.Hour)
-	tasks := []*Task{
-		NewTask("immediate1", []byte("p1")),
-		NewTask("scheduled1", []byte("p2"), ProcessAt(future)),
-		NewTask("immediate2", []byte("p3")),
-		NewTask("grouped1", []byte("p4"), Group("mygroup")),
-		NewTask("immediate3", []byte("p5")),
-	}
-
-	results := client.BatchEnqueueContext(context.Background(), tasks)
-	if len(results) != 5 {
-		t.Fatalf("BatchEnqueueContext returned %d results, want 5", len(results))
-	}
-
-	// Immediate tasks (indices 0, 2, 4) should succeed with Pending state.
-	for _, idx := range []int{0, 2, 4} {
-		if results[idx].Err != nil {
-			t.Errorf("results[%d].Err = %v, want nil (immediate task)", idx, results[idx].Err)
-		}
-		if results[idx].TaskInfo == nil {
-			t.Errorf("results[%d].TaskInfo is nil, want non-nil", idx)
-			continue
-		}
-		if results[idx].TaskInfo.State != TaskStatePending {
-			t.Errorf("results[%d].TaskInfo.State = %v, want %v", idx, results[idx].TaskInfo.State, TaskStatePending)
-		}
-	}
-
-	// Scheduled task (index 1) should succeed with Scheduled state.
-	if results[1].Err != nil {
-		t.Errorf("results[1].Err = %v, want nil (scheduled task)", results[1].Err)
-	}
-	if results[1].TaskInfo != nil && results[1].TaskInfo.State != TaskStateScheduled {
-		t.Errorf("results[1].TaskInfo.State = %v, want %v", results[1].TaskInfo.State, TaskStateScheduled)
-	}
-
-	// Grouped task (index 3) should be rejected.
-	if results[3].Err == nil {
-		t.Error("results[3].Err is nil, want error for group task")
-	}
-
-	gotPending := h.GetPendingMessages(t, r, "default")
-	if len(gotPending) != 3 {
-		t.Errorf("len(pending) = %d, want 3", len(gotPending))
-	}
-
-	gotScheduled := h.GetScheduledMessages(t, r, "default")
-	if len(gotScheduled) != 1 {
-		t.Errorf("len(scheduled) = %d, want 1", len(gotScheduled))
-	}
-}
-
-func TestBatchEnqueueContext_ValidationErrors(t *testing.T) {
-	setup(t)
-	client := NewClient(getRedisConnOpt(t))
-	defer client.Close()
-
-	tests := []struct {
-		desc  string
-		tasks []*Task
-		opts  []Option
-	}{
-		{
-			desc:  "nil task",
-			tasks: []*Task{nil},
-		},
-		{
-			desc:  "empty task typename",
-			tasks: []*Task{NewTask("", []byte("payload"))},
-		},
-		{
-			desc:  "blank task typename",
-			tasks: []*Task{NewTask("   ", []byte("payload"))},
-		},
-		{
-			desc:  "invalid option: unique TTL less than 1s",
-			tasks: []*Task{NewTask("foo", nil)},
-			opts:  []Option{Unique(300 * time.Millisecond)},
-		},
-		{
-			desc:  "group task rejected",
-			tasks: []*Task{NewTask("foo", nil, Group("mygroup"))},
-		},
-		{
-			desc:  "unique task rejected",
-			tasks: []*Task{NewTask("foo", nil, Unique(time.Hour))},
-		},
-	}
-
-	for _, tc := range tests {
-		results := client.BatchEnqueueContext(context.Background(), tc.tasks, tc.opts...)
-		if len(results) != len(tc.tasks) {
-			t.Errorf("%s: got %d results, want %d", tc.desc, len(results), len(tc.tasks))
-			continue
-		}
-		for i, res := range results {
-			if res.Err == nil {
-				t.Errorf("%s: results[%d].Err = nil, want non-nil error", tc.desc, i)
-			}
-			if res.TaskInfo != nil {
-				t.Errorf("%s: results[%d].TaskInfo = %v, want nil", tc.desc, i, res.TaskInfo)
-			}
-		}
-	}
-}
-
-func TestBatchEnqueueContext_BrokerError(t *testing.T) {
-	r := rdb.NewRDB(setup(t))
-	defer r.Close()
-	testBroker := testbroker.NewTestBroker(r)
-	client := &Client{broker: testBroker, sharedConnection: true}
-
-	tasks := []*Task{
-		NewTask("task1", []byte("p1")),
-		NewTask("task2", []byte("p2")),
-	}
-
-	testBroker.Sleep()
-	results := client.BatchEnqueueContext(context.Background(), tasks)
-	testBroker.Wakeup()
-
-	if len(results) != 2 {
-		t.Fatalf("BatchEnqueueContext returned %d results, want 2", len(results))
-	}
-	for i, res := range results {
-		if res.Err == nil {
-			t.Errorf("results[%d].Err = nil, want non-nil error when broker is down", i)
-		}
-		if res.TaskInfo != nil {
-			t.Errorf("results[%d].TaskInfo = %v, want nil on broker error", i, res.TaskInfo)
-		}
-	}
-}
--- a/inspector.go
+++ b/inspector.go
@@ -5,7 +5,6 @@
 package asynq

 import (
-	"encoding/json"
 	"fmt"
 	"strconv"
 	"strings"
@@ -1003,13 +1002,6 @@ func parseOption(s string) (Option, error) {
 			return nil, err
 		}
 		return Retention(d), nil
-	case "Header":
-		var h [2]string
-		err := json.Unmarshal([]byte(arg), &h)
-		if err != nil {
-			return nil, err
-		}
-		return Header(h[0], h[1]), nil
 	default:
 		return nil, fmt.Errorf("cannot not parse option string %q", s)
 	}
--- a/inspector_test.go
+++ b/inspector_test.go
@@ -3526,7 +3526,6 @@ func TestParseOption(t *testing.T) {
 		{ProcessAt(oneHourFromNow).String(), ProcessAtOpt, oneHourFromNow},
 		{`ProcessIn(10m)`, ProcessInOpt, 10 * time.Minute},
 		{`Retention(24h)`, RetentionOpt, 24 * time.Hour},
-		{`Header(["email", "hello@example.com"])`, HeaderOpt, [2]string{"email", "hello@example.com"}},
 	}

 	for _, tc := range tests {
@@ -3574,14 +3573,6 @@ func TestParseOption(t *testing.T) {
 				if cmp.Equal(gotVal, tc.wantVal.(time.Time)) {
 					t.Fatalf("got value %v, want %v", gotVal, tc.wantVal)
 				}
-			case HeaderOpt:
-				gotVal, ok := got.Value().([2]string)
-				if !ok {
-					t.Fatal("returned Option with non array value")
-				}
-				if gotVal != tc.wantVal.([2]string) {
-					t.Fatalf("got value %v, want %v", gotVal, tc.wantVal)
-				}
 			default:
 				t.Fatalf("returned Option with unexpected type: %v", got.Type())
 			}
--- a/internal/base/base.go
+++ b/internal/base/base.go
@@ -684,14 +684,6 @@ func (l *Lease) IsValid() bool {
 	return l.expireAt.After(now) || l.expireAt.Equal(now)
 }

-// BatchEnqueueItem pairs a task message with optional scheduling metadata for
-// batch enqueue operations. If ProcessAt is zero, the task is enqueued for
-// immediate processing; otherwise it is added to the scheduled set.
-type BatchEnqueueItem struct {
-	Msg       *TaskMessage
-	ProcessAt time.Time // zero value → immediate
-}
-
 // Broker is a message broker that supports operations to manage task queues.
 //
 // See rdb.RDB as a reference implementation.
@@ -700,12 +692,6 @@ type Broker interface {
 	Close() error
 	Enqueue(ctx context.Context, msg *TaskMessage) error
 	EnqueueUnique(ctx context.Context, msg *TaskMessage, ttl time.Duration) error
-	// BatchEnqueue enqueues multiple tasks in a single round-trip. It returns the
-	// count of newly enqueued tasks; duplicate IDs are silently skipped. The error
-	// is non-nil only on infrastructure failure (e.g. lost connection), in which
-	// case the count is meaningless. Individual task scripts are atomic but the
-	// batch as a whole is not transactional — partial success is possible.
-	BatchEnqueue(ctx context.Context, items []BatchEnqueueItem) (int, error)
 	Dequeue(qnames ...string) (*TaskMessage, time.Time, error)
 	Done(ctx context.Context, msg *TaskMessage) error
 	MarkAsComplete(ctx context.Context, msg *TaskMessage) error
--- a/internal/rdb/rdb.go
+++ b/internal/rdb/rdb.go
@@ -139,118 +139,6 @@ func (r *RDB) Enqueue(ctx context.Context, msg *base.TaskMessage) error {
 	return nil
 }

-// BatchEnqueue adds all given tasks to Redis using a single pipeline round-trip.
-// Each item is either enqueued immediately (ProcessAt is zero) or added to the
-// scheduled sorted set.
-//
-// WARNING: tasks whose IDs already exist in Redis are silently skipped.
-//
-// The pipeline executes independent Lua scripts per task — there is no
-// MULTI/EXEC wrapping the batch, so individual tasks may succeed or fail
-// independently. The returned int is the number of tasks actually written;
-// skipped duplicates do not count. The returned error is non-nil only when the
-// pipeline call itself fails (network error, context cancellation, etc.), in
-// which case no individual result should be trusted.
-//
-// Message encoding errors cause an immediate return before any Redis I/O.
-func (r *RDB) BatchEnqueue(ctx context.Context, items []base.BatchEnqueueItem) (int, error) {
-	var op errors.Op = "rdb.BatchEnqueue"
-	if len(items) == 0 {
-		return 0, nil
-	}
-
-	// Preload Lua scripts so that EVALSHA inside the pipeline does not fail with
-	// NOSCRIPT. Script.Run on a pipeline only sends EVALSHA (unlike non-pipeline
-	// Run which retries with EVAL on NOSCRIPT).
-	needsEnqueue, needsSchedule := false, false
-	for _, item := range items {
-		if item.ProcessAt.IsZero() {
-			needsEnqueue = true
-		} else {
-			needsSchedule = true
-		}
-		if needsEnqueue && needsSchedule {
-			break
-		}
-	}
-	if needsEnqueue {
-		if err := enqueueCmd.Load(ctx, r.client).Err(); err != nil {
-			return 0, errors.E(op, errors.Unknown, fmt.Sprintf("failed to load enqueue script: %v", err))
-		}
-	}
-	if needsSchedule {
-		if err := scheduleCmd.Load(ctx, r.client).Err(); err != nil {
-			return 0, errors.E(op, errors.Unknown, fmt.Sprintf("failed to load schedule script: %v", err))
-		}
-	}
-
-	pipe := r.client.Pipeline()
-
-	// Track which pipeline slot holds each item's script result.
-	scriptIdxs := make([]int, 0, len(items))
-	pipeLen := 0
-
-	// Track queues we add to AllQueues in this pipeline so we can roll back the
-	// in-memory cache on failure.
-	var newQueues []string
-
-	now := r.clock.Now().UnixNano()
-
-	for _, item := range items {
-		encoded, err := base.EncodeMessage(item.Msg)
-		if err != nil {
-			return 0, errors.E(op, errors.Unknown, fmt.Sprintf("cannot encode message: %v", err))
-		}
-		if _, found := r.queuesPublished.Load(item.Msg.Queue); !found {
-			pipe.SAdd(ctx, base.AllQueues, item.Msg.Queue)
-			r.queuesPublished.Store(item.Msg.Queue, true)
-			newQueues = append(newQueues, item.Msg.Queue)
-			pipeLen++
-		}
-
-		if item.ProcessAt.IsZero() {
-			keys := []string{
-				base.TaskKey(item.Msg.Queue, item.Msg.ID),
-				base.PendingKey(item.Msg.Queue),
-			}
-			argv := []interface{}{encoded, item.Msg.ID, now}
-			enqueueCmd.Run(ctx, pipe, keys, argv...)
-		} else {
-			keys := []string{
-				base.TaskKey(item.Msg.Queue, item.Msg.ID),
-				base.ScheduledKey(item.Msg.Queue),
-			}
-			argv := []interface{}{encoded, item.ProcessAt.Unix(), item.Msg.ID}
-			scheduleCmd.Run(ctx, pipe, keys, argv...)
-		}
-		scriptIdxs = append(scriptIdxs, pipeLen)
-		pipeLen++
-	}
-
-	cmds, err := pipe.Exec(ctx)
-	if err != nil && err != redis.Nil {
-		for _, q := range newQueues {
-			r.queuesPublished.Delete(q)
-		}
-		return 0, errors.E(op, errors.Unknown, fmt.Sprintf("redis pipeline error: %v", err))
-	}
-
-	enqueued := 0
-	for _, idx := range scriptIdxs {
-		if idx >= len(cmds) {
-			continue
-		}
-		res, err := cmds[idx].(*redis.Cmd).Result()
-		if err != nil {
-			continue
-		}
-		if n, ok := res.(int64); ok && n == 1 {
-			enqueued++
-		}
-	}
-	return enqueued, nil
-}
-
 // enqueueUniqueCmd enqueues the task message if the task is unique.
 //
 // KEYS[1] -> unique key
--- a/internal/rdb/rdb_test.go
+++ b/internal/rdb/rdb_test.go
@@ -160,156 +160,6 @@ func TestEnqueueTaskIdConflictError(t *testing.T) {
 	}
 }

-func TestBatchEnqueue(t *testing.T) {
-	r := setup(t)
-	defer r.Close()
-
-	t1 := h.NewTaskMessage("send_email", h.JSON(map[string]interface{}{"to": "user@example.com"}))
-	t2 := h.NewTaskMessageWithQueue("generate_csv", h.JSON(map[string]interface{}{}), "csv")
-	t3 := h.NewTaskMessageWithQueue("sync", nil, "low")
-
-	enqueueTime := time.Now()
-	r.SetClock(timeutil.NewSimulatedClock(enqueueTime))
-
-	t.Run("enqueue multiple tasks", func(t *testing.T) {
-		h.FlushDB(t, r.client)
-		items := []base.BatchEnqueueItem{
-			{Msg: t1},
-			{Msg: t2},
-			{Msg: t3},
-		}
-
-		n, err := r.BatchEnqueue(context.Background(), items)
-		if err != nil {
-			t.Fatalf("BatchEnqueue returned error: %v", err)
-		}
-		if n != 3 {
-			t.Errorf("BatchEnqueue returned %d, want 3", n)
-		}
-
-		for _, item := range items {
-			msg := item.Msg
-			pendingKey := base.PendingKey(msg.Queue)
-			pendingIDs := r.client.LRange(context.Background(), pendingKey, 0, -1).Val()
-			found := false
-			for _, id := range pendingIDs {
-				if id == msg.ID {
-					found = true
-					break
-				}
-			}
-			if !found {
-				t.Errorf("task %s not found in pending list %s", msg.ID, pendingKey)
-			}
-
-			taskKey := base.TaskKey(msg.Queue, msg.ID)
-			state := r.client.HGet(context.Background(), taskKey, "state").Val()
-			if state != "pending" {
-				t.Errorf("state for task %s = %q, want %q", msg.ID, state, "pending")
-			}
-		}
-	})
-
-	t.Run("empty batch", func(t *testing.T) {
-		h.FlushDB(t, r.client)
-
-		n, err := r.BatchEnqueue(context.Background(), nil)
-		if err != nil {
-			t.Fatalf("BatchEnqueue(nil) returned error: %v", err)
-		}
-		if n != 0 {
-			t.Errorf("BatchEnqueue(nil) returned %d, want 0", n)
-		}
-	})
-
-	t.Run("duplicate IDs skipped", func(t *testing.T) {
-		h.FlushDB(t, r.client)
-
-		if err := r.Enqueue(context.Background(), t1); err != nil {
-			t.Fatalf("pre-enqueue failed: %v", err)
-		}
-
-		dup := *t1
-		newMsg := h.NewTaskMessage("new_task", nil)
-
-		items := []base.BatchEnqueueItem{
-			{Msg: &dup},
-			{Msg: newMsg},
-		}
-		n, err := r.BatchEnqueue(context.Background(), items)
-		if err != nil {
-			t.Fatalf("BatchEnqueue returned error: %v", err)
-		}
-		if n != 1 {
-			t.Errorf("BatchEnqueue returned %d, want 1 (duplicate should be skipped)", n)
-		}
-	})
-
-	t.Run("scheduled tasks", func(t *testing.T) {
-		h.FlushDB(t, r.client)
-
-		future := time.Now().Add(1 * time.Hour)
-		s1 := h.NewTaskMessage("deferred_email", nil)
-		items := []base.BatchEnqueueItem{
-			{Msg: t1},
-			{Msg: s1, ProcessAt: future},
-		}
-
-		n, err := r.BatchEnqueue(context.Background(), items)
-		if err != nil {
-			t.Fatalf("BatchEnqueue returned error: %v", err)
-		}
-		if n != 2 {
-			t.Errorf("BatchEnqueue returned %d, want 2", n)
-		}
-
-		// Immediate task should be in pending.
-		pendingIDs := r.client.LRange(context.Background(), base.PendingKey(t1.Queue), 0, -1).Val()
-		foundPending := false
-		for _, id := range pendingIDs {
-			if id == t1.ID {
-				foundPending = true
-			}
-		}
-		if !foundPending {
-			t.Errorf("immediate task %s not found in pending list", t1.ID)
-		}
-
-		// Scheduled task should be in scheduled set.
-		scheduledIDs := r.client.ZRange(context.Background(), base.ScheduledKey(s1.Queue), 0, -1).Val()
-		foundScheduled := false
-		for _, id := range scheduledIDs {
-			if id == s1.ID {
-				foundScheduled = true
-			}
-		}
-		if !foundScheduled {
-			t.Errorf("scheduled task %s not found in scheduled set", s1.ID)
-		}
-
-		taskKey := base.TaskKey(s1.Queue, s1.ID)
-		state := r.client.HGet(context.Background(), taskKey, "state").Val()
-		if state != "scheduled" {
-			t.Errorf("state for scheduled task %s = %q, want %q", s1.ID, state, "scheduled")
-		}
-	})
-
-	t.Run("pipeline error from cancelled context", func(t *testing.T) {
-		h.FlushDB(t, r.client)
-
-		msg := h.NewTaskMessage("pipeline_error_task", nil)
-		items := []base.BatchEnqueueItem{{Msg: msg}}
-
-		ctx, cancel := context.WithCancel(context.Background())
-		cancel()
-
-		_, err := r.BatchEnqueue(ctx, items)
-		if err == nil {
-			t.Error("BatchEnqueue with cancelled context returned nil error, want non-nil")
-		}
-	})
-}
-
 func TestEnqueueQueueCache(t *testing.T) {
 	r := setup(t)
 	defer r.Close()
--- a/internal/testbroker/testbroker.go
+++ b/internal/testbroker/testbroker.go
@@ -64,15 +64,6 @@ func (tb *TestBroker) EnqueueUnique(ctx context.Context, msg *base.TaskMessage,
 	return tb.real.EnqueueUnique(ctx, msg, ttl)
 }

-func (tb *TestBroker) BatchEnqueue(ctx context.Context, items []base.BatchEnqueueItem) (int, error) {
-	tb.mu.Lock()
-	defer tb.mu.Unlock()
-	if tb.sleeping {
-		return 0, errRedisDown
-	}
-	return tb.real.BatchEnqueue(ctx, items)
-}
-
 func (tb *TestBroker) Dequeue(qnames ...string) (*base.TaskMessage, time.Time, error) {
 	tb.mu.Lock()
 	defer tb.mu.Unlock()
--- a/tools/asynq/cmd/cron.go
+++ b/tools/asynq/cmd/cron.go
@@ -7,6 +7,7 @@ package cmd
 import (
 	"fmt"
 	"io"
+	"os"
 	"sort"
 	"time"

@@ -35,14 +36,14 @@ var cronListCmd = &cobra.Command{
 	Use:     "list",
 	Aliases: []string{"ls"},
 	Short:   "List cron entries",
-	RunE:    cronList,
+	Run:     cronList,
 }

 var cronHistoryCmd = &cobra.Command{
 	Use:   "history <entry_id> [<entry_id>...]",
 	Short: "Show history of each cron tasks",
 	Args:  cobra.MinimumNArgs(1),
-	RunE:  cronHistory,
+	Run:   cronHistory,
 	Example: heredoc.Doc(`
 		$ asynq cron history 7837f142-6337-4217-9276-8f27281b67d1
 		$ asynq cron history 7837f142-6337-4217-9276-8f27281b67d1 bf6a8594-cd03-4968-b36a-8572c5e160dd
@@ -50,16 +51,17 @@ var cronHistoryCmd = &cobra.Command{
 		$ asynq cron history 7837f142-6337-4217-9276-8f27281b67d1 --page=2`),
 }

-func cronList(cmd *cobra.Command, args []string) error {
+func cronList(cmd *cobra.Command, args []string) {
 	inspector := createInspector()

 	entries, err := inspector.SchedulerEntries()
 	if err != nil {
-		return fmt.Errorf("could not fetch scheduler entries: %v", err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(entries) == 0 {
 		fmt.Println("No scheduler entries")
-		return nil
+		return
 	}

 	// Sort entries by spec.
@@ -76,7 +78,6 @@ func cronList(cmd *cobra.Command, args []string) error {
 		}
 	}
 	printTable(cols, printRows)
-	return nil
 }

 // Returns a string describing when the next enqueue will happen.
@@ -96,14 +97,16 @@ func prevEnqueue(prevEnqueuedAt time.Time) string {
 	return fmt.Sprintf("%v ago", time.Since(prevEnqueuedAt).Round(time.Second))
 }

-func cronHistory(cmd *cobra.Command, args []string) error {
+func cronHistory(cmd *cobra.Command, args []string) {
 	pageNum, err := cmd.Flags().GetInt("page")
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	pageSize, err := cmd.Flags().GetInt("size")
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	inspector := createInspector()
 	for i, entryID := range args {
@@ -133,5 +136,4 @@ func cronHistory(cmd *cobra.Command, args []string) error {
 		}
 		printTable(cols, printRows)
 	}
-	return nil
 }
--- a/tools/asynq/cmd/dash.go
+++ b/tools/asynq/cmd/dash.go
@@ -6,6 +6,7 @@ package cmd

 import (
 	"fmt"
+	"os"
 	"time"

 	"github.com/MakeNowJust/heredoc/v2"
@@ -31,14 +32,14 @@ var dashCmd = &cobra.Command{
 	Example: heredoc.Doc(`
        $ asynq dash
        $ asynq dash --refresh=3s`),
-	RunE: func(cmd *cobra.Command, args []string) error {
+	Run: func(cmd *cobra.Command, args []string) {
 		if flagPollInterval < 1*time.Second {
-			return fmt.Errorf("--refresh cannot be less than 1s")
+			fmt.Println("error: --refresh cannot be less than 1s")
+			os.Exit(1)
 		}
 		dash.Run(dash.Options{
 			PollInterval: flagPollInterval,
 			RedisConnOpt: getRedisConnOpt(),
 		})
-		return nil
 	},
 }
--- a/tools/asynq/cmd/group.go
+++ b/tools/asynq/cmd/group.go
@@ -6,6 +6,7 @@ package cmd

 import (
 	"fmt"
+	"os"

 	"github.com/MakeNowJust/heredoc/v2"
 	"github.com/spf13/cobra"
@@ -30,25 +31,22 @@ var groupListCmd = &cobra.Command{
 	Aliases: []string{"ls"},
 	Short:   "List groups",
 	Args:    cobra.NoArgs,
-	RunE:    groupLists,
+	Run:     groupLists,
 }

-func groupLists(cmd *cobra.Command, args []string) error {
+func groupLists(cmd *cobra.Command, args []string) {
 	qname, err := cmd.Flags().GetString("queue")
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	inspector := createInspector()
 	groups, err := inspector.Groups(qname)
-	if err != nil {
-		return fmt.Errorf("could not fetch groups: %v", err)
-	}
 	if len(groups) == 0 {
 		fmt.Printf("No groups found in queue %q\n", qname)
-		return nil
+		return
 	}
 	for _, g := range groups {
 		fmt.Println(g.Group)
 	}
-	return nil
 }
--- a/tools/asynq/cmd/queue.go
+++ b/tools/asynq/cmd/queue.go
@@ -7,6 +7,7 @@ package cmd
 import (
 	"fmt"
 	"io"
+	"os"

 	"github.com/MakeNowJust/heredoc/v2"
 	"github.com/fatih/color"
@@ -43,14 +44,16 @@ var queueListCmd = &cobra.Command{
 	Use:     "list",
 	Short:   "List queues",
 	Aliases: []string{"ls"},
-	RunE:    queueList,
+	// TODO: Use RunE instead?
+	Run: queueList,
 }

 var queueInspectCmd = &cobra.Command{
 	Use:   "inspect <queue> [<queue>...]",
 	Short: "Display detailed information on one or more queues",
-	Args: cobra.MinimumNArgs(1),
-	RunE: queueInspect,
+	Args:  cobra.MinimumNArgs(1),
+	// TODO: Use RunE instead?
+	Run: queueInspect,
 	Example: heredoc.Doc(`
 		$ asynq queue inspect myqueue
 		$ asynq queue inspect queue1 queue2 queue3`),
@@ -59,8 +62,8 @@ var queueInspectCmd = &cobra.Command{
 var queueHistoryCmd = &cobra.Command{
 	Use:   "history <queue> [<queue>...]",
 	Short: "Display historical aggregate data from one or more queues",
-	Args: cobra.MinimumNArgs(1),
-	RunE: queueHistory,
+	Args:  cobra.MinimumNArgs(1),
+	Run:   queueHistory,
 	Example: heredoc.Doc(`
 		$ asynq queue history myqueue
 		$ asynq queue history queue1 queue2 queue3
@@ -71,7 +74,7 @@ var queuePauseCmd = &cobra.Command{
 	Use:   "pause <queue> [<queue>...]",
 	Short: "Pause one or more queues",
 	Args:  cobra.MinimumNArgs(1),
-	RunE:  queuePause,
+	Run:   queuePause,
 	Example: heredoc.Doc(`
 		$ asynq queue pause myqueue
 		$ asynq queue pause queue1 queue2 queue3`),
@@ -82,7 +85,7 @@ var queueUnpauseCmd = &cobra.Command{
 	Short:   "Resume (unpause) one or more queues",
 	Args:    cobra.MinimumNArgs(1),
 	Aliases: []string{"unpause"},
-	RunE:    queueUnpause,
+	Run:     queueUnpause,
 	Example: heredoc.Doc(`
 		$ asynq queue resume myqueue
 		$ asynq queue resume queue1 queue2 queue3`),
@@ -93,14 +96,14 @@ var queueRemoveCmd = &cobra.Command{
 	Short:   "Remove one or more queues",
 	Aliases: []string{"rm", "delete"},
 	Args:    cobra.MinimumNArgs(1),
-	RunE:    queueRemove,
+	Run:     queueRemove,
 	Example: heredoc.Doc(`
 		$ asynq queue rm myqueue
 		$ asynq queue rm queue1 queue2 queue3
 		$ asynq queue rm myqueue --force`),
 }

-func queueList(cmd *cobra.Command, args []string) error {
+func queueList(cmd *cobra.Command, args []string) {
 	type queueInfo struct {
 		name    string
 		keyslot int64
@@ -109,7 +112,8 @@ func queueList(cmd *cobra.Command, args []string) error {
 	inspector := createInspector()
 	queues, err := inspector.Queues()
 	if err != nil {
-		return fmt.Errorf("could not fetch list of queues: %v", err)
+		fmt.Printf("error: Could not fetch list of queues: %v\n", err)
+		os.Exit(1)
 	}
 	var qs []*queueInfo
 	for _, qname := range queues {
@@ -117,13 +121,13 @@ func queueList(cmd *cobra.Command, args []string) error {
 		if useRedisCluster {
 			keyslot, err := inspector.ClusterKeySlot(qname)
 			if err != nil {
-				fmt.Printf("error: could not get cluster keyslot for %q\n", qname)
+				fmt.Errorf("error: Could not get cluster keyslot for %q\n", qname)
 				continue
 			}
 			q.keyslot = keyslot
 			nodes, err := inspector.ClusterNodes(qname)
 			if err != nil {
-				fmt.Printf("error: could not get cluster nodes for %q\n", qname)
+				fmt.Errorf("error: Could not get cluster nodes for %q\n", qname)
 				continue
 			}
 			q.nodes = nodes
@@ -144,10 +148,9 @@ func queueList(cmd *cobra.Command, args []string) error {
 			fmt.Println(q.name)
 		}
 	}
-	return nil
 }

-func queueInspect(cmd *cobra.Command, args []string) error {
+func queueInspect(cmd *cobra.Command, args []string) {
 	inspector := createInspector()
 	for i, qname := range args {
 		if i > 0 {
@@ -160,7 +163,6 @@ func queueInspect(cmd *cobra.Command, args []string) error {
 		}
 		printQueueInfo(info)
 	}
-	return nil
 }

 func printQueueInfo(info *asynq.QueueInfo) {
@@ -193,10 +195,11 @@ func printQueueInfo(info *asynq.QueueInfo) {
 	)
 }

-func queueHistory(cmd *cobra.Command, args []string) error {
+func queueHistory(cmd *cobra.Command, args []string) {
 	days, err := cmd.Flags().GetInt("days")
 	if err != nil {
-		return err
+		fmt.Printf("error: Internal error: %v\n", err)
+		os.Exit(1)
 	}
 	inspector := createInspector()
 	for i, qname := range args {
@@ -211,7 +214,6 @@ func queueHistory(cmd *cobra.Command, args []string) error {
 		}
 		printDailyStats(stats)
 	}
-	return nil
 }

 func printDailyStats(stats []*asynq.DailyStats) {
@@ -231,63 +233,49 @@ func printDailyStats(stats []*asynq.DailyStats) {
 	)
 }

-func queuePause(cmd *cobra.Command, args []string) error {
+func queuePause(cmd *cobra.Command, args []string) {
 	inspector := createInspector()
-	var firstErr error
 	for _, qname := range args {
 		err := inspector.PauseQueue(qname)
 		if err != nil {
 			fmt.Println(err)
-			if firstErr == nil {
-				firstErr = err
-			}
 			continue
 		}
 		fmt.Printf("Successfully paused queue %q\n", qname)
 	}
-	return firstErr
 }

-func queueUnpause(cmd *cobra.Command, args []string) error {
+func queueUnpause(cmd *cobra.Command, args []string) {
 	inspector := createInspector()
-	var firstErr error
 	for _, qname := range args {
 		err := inspector.UnpauseQueue(qname)
 		if err != nil {
 			fmt.Println(err)
-			if firstErr == nil {
-				firstErr = err
-			}
 			continue
 		}
 		fmt.Printf("Successfully unpaused queue %q\n", qname)
 	}
-	return firstErr
 }

-func queueRemove(cmd *cobra.Command, args []string) error {
+func queueRemove(cmd *cobra.Command, args []string) {
 	// TODO: Use inspector once RemoveQueue become public API.
 	force, err := cmd.Flags().GetBool("force")
 	if err != nil {
-		return err
+		fmt.Printf("error: Internal error: %v\n", err)
+		os.Exit(1)
 	}

 	r := createRDB()
-	var firstErr error
 	for _, qname := range args {
 		err = r.RemoveQueue(qname, force)
 		if err != nil {
 			if errors.IsQueueNotEmpty(err) {
 				fmt.Printf("error: %v\nIf you are sure you want to delete it, run 'asynq queue rm --force %s'\n", err, qname)
-			} else {
-				fmt.Printf("error: %v\n", err)
-			}
-			if firstErr == nil {
-				firstErr = err
+				continue
 			}
+			fmt.Printf("error: %v\n", err)
 			continue
 		}
 		fmt.Printf("Successfully removed queue %q\n", qname)
 	}
-	return firstErr
 }
--- a/tools/asynq/cmd/root.go
+++ b/tools/asynq/cmd/root.go
@@ -487,31 +487,35 @@ func isPrintable(data []byte) bool {
 }

 // Helper to turn a command line flag into a duration
-func getDuration(cmd *cobra.Command, arg string) (time.Duration, error) {
+func getDuration(cmd *cobra.Command, arg string) time.Duration {
 	durationStr, err := cmd.Flags().GetString(arg)
 	if err != nil {
-		return 0, err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	duration, err := time.ParseDuration(durationStr)
 	if err != nil {
-		return 0, err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

-	return duration, nil
+	return duration
 }

 // Helper to turn a command line flag into a time
-func getTime(cmd *cobra.Command, arg string) (time.Time, error) {
+func getTime(cmd *cobra.Command, arg string) time.Time {
 	timeStr, err := cmd.Flags().GetString(arg)
 	if err != nil {
-		return time.Time{}, err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	timeVal, err := time.Parse(time.RFC3339, timeStr)
 	if err != nil {
-		return time.Time{}, err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

-	return timeVal, nil
+	return timeVal
 }
--- a/tools/asynq/cmd/server.go
+++ b/tools/asynq/cmd/server.go
@@ -7,6 +7,7 @@ package cmd
 import (
 	"fmt"
 	"io"
+	"os"
 	"sort"
 	"strings"
 	"time"
@@ -43,19 +44,20 @@ The command shows the following for each server:

 A "active" server is pulling tasks from queues and processing them.
 A "stopped" server is no longer pulling new tasks from queues`,
-	RunE: serverList,
+	Run: serverList,
 }

-func serverList(cmd *cobra.Command, args []string) error {
+func serverList(cmd *cobra.Command, args []string) {
 	r := createRDB()

 	servers, err := r.ListServers()
 	if err != nil {
-		return fmt.Errorf("could not fetch list of servers: %v", err)
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(servers) == 0 {
 		fmt.Println("No running servers")
-		return nil
+		return
 	}

 	// sort by hostname and pid
@@ -78,7 +80,6 @@ func serverList(cmd *cobra.Command, args []string) error {
 		}
 	}
 	printTable(cols, printRows)
-	return nil
 }

 func formatQueues(qmap map[string]int) string {
--- a/tools/asynq/cmd/stats.go
+++ b/tools/asynq/cmd/stats.go
@@ -35,7 +35,7 @@ var statsCmd = &cobra.Command{
 	    * Aggregate data for the current day
 	    * Basic information about the running redis instance`),
 	Args: cobra.NoArgs,
-	RunE: stats,
+	Run:  stats,
 }

 var jsonFlag bool
@@ -74,12 +74,13 @@ type FullStats struct {
 	RedisInfo  map[string]string `json:"redis"`
 }

-func stats(cmd *cobra.Command, args []string) error {
+func stats(cmd *cobra.Command, args []string) {
 	r := createRDB()

 	queues, err := r.AllQueues()
 	if err != nil {
-		return fmt.Errorf("could not fetch queues: %v", err)
+		fmt.Println(err)
+		os.Exit(1)
 	}

 	var aggStats AggregateStats
@@ -87,7 +88,8 @@ func stats(cmd *cobra.Command, args []string) error {
 	for _, qname := range queues {
 		s, err := r.CurrentStats(qname)
 		if err != nil {
-			return fmt.Errorf("could not fetch stats for queue %q: %v", qname, err)
+			fmt.Println(err)
+			os.Exit(1)
 		}
 		aggStats.Active += s.Active
 		aggStats.Pending += s.Pending
@@ -108,7 +110,8 @@ func stats(cmd *cobra.Command, args []string) error {
 		info, err = r.RedisInfo()
 	}
 	if err != nil {
-		return fmt.Errorf("could not fetch redis info: %v", err)
+		fmt.Println(err)
+		os.Exit(1)
 	}

 	if jsonFlag {
@@ -119,11 +122,12 @@ func stats(cmd *cobra.Command, args []string) error {
 		})

 		if err != nil {
-			return fmt.Errorf("could not marshal stats to JSON: %v", err)
+			fmt.Println(err)
+			os.Exit(1)
 		}

 		fmt.Println(string(statsJSON))
-		return nil
+		return
 	}

 	bold := color.New(color.Bold)
@@ -147,7 +151,6 @@ func stats(cmd *cobra.Command, args []string) error {
 		printInfo(info)
 	}
 	fmt.Println()
-	return nil
 }

 func printStatsByState(s *AggregateStats) {
--- a/tools/asynq/cmd/task.go
+++ b/tools/asynq/cmd/task.go
@@ -7,6 +7,7 @@ package cmd
 import (
 	"fmt"
 	"io"
+	"os"
 	"time"

 	"github.com/MakeNowJust/heredoc/v2"
@@ -119,14 +120,14 @@ var taskListCmd = &cobra.Command{
 		$ asynq task list --queue=myqueue --state=pending
 		$ asynq task list --queue=myqueue --state=aggregating --group=mygroup
 		$ asynq task list --queue=myqueue --state=scheduled --page=2`),
-	RunE: taskList,
+	Run: taskList,
 }

 var taskInspectCmd = &cobra.Command{
 	Use:   "inspect --queue=<queue> --id=<task_id>",
 	Short: "Display detailed information on the specified task",
 	Args:  cobra.NoArgs,
-	RunE:  taskInspect,
+	Run:   taskInspect,
 	Example: heredoc.Doc(`
 		$ asynq task inspect --queue=myqueue --id=f1720682-f5a6-4db1-8953-4f48ae541d0f`),
 }
@@ -135,7 +136,7 @@ var taskCancelCmd = &cobra.Command{
 	Use:   "cancel <task_id> [<task_id>...]",
 	Short: "Cancel one or more active tasks",
 	Args:  cobra.MinimumNArgs(1),
-	RunE:  taskCancel,
+	Run:   taskCancel,
 	Example: heredoc.Doc(`
 		$ asynq task cancel f1720682-f5a6-4db1-8953-4f48ae541d0f`),
 }
@@ -144,7 +145,7 @@ var taskArchiveCmd = &cobra.Command{
 	Use:   "archive --queue=<queue> --id=<task_id>",
 	Short: "Archive a task with the given id",
 	Args:  cobra.NoArgs,
-	RunE:  taskArchive,
+	Run:   taskArchive,
 	Example: heredoc.Doc(`
 		$ asynq task archive --queue=myqueue --id=f1720682-f5a6-4db1-8953-4f48ae541d0f`),
 }
@@ -154,7 +155,7 @@ var taskDeleteCmd = &cobra.Command{
 	Aliases: []string{"remove", "rm"},
 	Short:   "Delete a task with the given id",
 	Args:    cobra.NoArgs,
-	RunE:    taskDelete,
+	Run:     taskDelete,
 	Example: heredoc.Doc(`
 		$ asynq task delete --queue=myqueue --id=f1720682-f5a6-4db1-8953-4f48ae541d0f`),
 }
@@ -163,7 +164,7 @@ var taskRunCmd = &cobra.Command{
 	Use:   "run --queue=<queue> --id=<task_id>",
 	Short: "Run a task with the given id",
 	Args:  cobra.NoArgs,
-	RunE:  taskRun,
+	Run:   taskRun,
 	Example: heredoc.Doc(`
 		$ asynq task run --queue=myqueue --id=f1720682-f5a6-4db1-8953-4f48ae541d0f`),
 }
@@ -172,7 +173,7 @@ var taskEnqueueCmd = &cobra.Command{
 	Use:   "enqueue --type_name=footype --payload=barpayload",
 	Short: "Enqueue a task",
 	Args:  cobra.NoArgs,
-	RunE:  taskEnqueue,
+	Run:   taskEnqueue,
 	Example: heredoc.Doc(`
 		$ asynq task enqueue -t footype -l barpayload
 		$ asynq task enqueue -t footask -l barpayload --retry 3 --id f1720682-f5a6-4db1-8953-4f48ae541d0f --queue bazqueue --timeout 100s --deadline 2024-12-14T01:23:45Z --unique 100s --process_at 2024-12-14T01:22:05Z --process_in 100s --retention 5h --group baygroup`),
@@ -182,7 +183,7 @@ var taskArchiveAllCmd = &cobra.Command{
 	Use:   "archiveall --queue=<queue> --state=<state>",
 	Short: "Archive all tasks in the given state",
 	Args:  cobra.NoArgs,
-	RunE:  taskArchiveAll,
+	Run:   taskArchiveAll,
 	Example: heredoc.Doc(`
 		$ asynq task archiveall --queue=myqueue --state=retry
 		$ asynq task archiveall --queue=myqueue --state=aggregating --group=mygroup`),
@@ -192,7 +193,7 @@ var taskDeleteAllCmd = &cobra.Command{
 	Use:   "deleteall --queue=<queue> --state=<state>",
 	Short: "Delete all tasks in the given state",
 	Args:  cobra.NoArgs,
-	RunE:  taskDeleteAll,
+	Run:   taskDeleteAll,
 	Example: heredoc.Doc(`
 		$ asynq task deleteall --queue=myqueue --state=archived
 		$ asynq task deleteall --queue=myqueue --state=aggregating --group=mygroup`),
@@ -202,66 +203,74 @@ var taskRunAllCmd = &cobra.Command{
 	Use:   "runall --queue=<queue> --state=<state>",
 	Short: "Run all tasks in the given state",
 	Args:  cobra.NoArgs,
-	RunE:  taskRunAll,
+	Run:   taskRunAll,
 	Example: heredoc.Doc(`
 		$ asynq task runall --queue=myqueue --state=retry
 		$ asynq task runall --queue=myqueue --state=aggregating --group=mygroup`),
 }

-func taskList(cmd *cobra.Command, args []string) error {
+func taskList(cmd *cobra.Command, args []string) {
 	qname, err := cmd.Flags().GetString("queue")
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	state, err := cmd.Flags().GetString("state")
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	pageNum, err := cmd.Flags().GetInt("page")
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	pageSize, err := cmd.Flags().GetInt("size")
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}

 	switch state {
 	case "active":
-		return listActiveTasks(qname, pageNum, pageSize)
+		listActiveTasks(qname, pageNum, pageSize)
 	case "pending":
-		return listPendingTasks(qname, pageNum, pageSize)
+		listPendingTasks(qname, pageNum, pageSize)
 	case "scheduled":
-		return listScheduledTasks(qname, pageNum, pageSize)
+		listScheduledTasks(qname, pageNum, pageSize)
 	case "retry":
-		return listRetryTasks(qname, pageNum, pageSize)
+		listRetryTasks(qname, pageNum, pageSize)
 	case "archived":
-		return listArchivedTasks(qname, pageNum, pageSize)
+		listArchivedTasks(qname, pageNum, pageSize)
 	case "completed":
-		return listCompletedTasks(qname, pageNum, pageSize)
+		listCompletedTasks(qname, pageNum, pageSize)
 	case "aggregating":
 		group, err := cmd.Flags().GetString("group")
 		if err != nil {
-			return err
+			fmt.Println(err)
+			os.Exit(1)
 		}
 		if group == "" {
-			return fmt.Errorf("flag --group is required for listing aggregating tasks")
+			fmt.Println("Flag --group is required for listing aggregating tasks")
+			os.Exit(1)
 		}
-		return listAggregatingTasks(qname, group, pageNum, pageSize)
+		listAggregatingTasks(qname, group, pageNum, pageSize)
 	default:
-		return fmt.Errorf("state=%q is not supported", state)
+		fmt.Printf("error: state=%q is not supported\n", state)
+		os.Exit(1)
 	}
 }

-func listActiveTasks(qname string, pageNum, pageSize int) error {
+func listActiveTasks(qname string, pageNum, pageSize int) {
 	i := createInspector()
 	tasks, err := i.ListActiveTasks(qname, asynq.PageSize(pageSize), asynq.Page(pageNum))
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Printf("No active tasks in %q queue\n", qname)
-		return nil
+		return
 	}
 	printTable(
 		[]string{"ID", "Type", "Payload"},
@@ -271,18 +280,18 @@ func listActiveTasks(qname string, pageNum, pageSize int) error {
 			}
 		},
 	)
-	return nil
 }

-func listPendingTasks(qname string, pageNum, pageSize int) error {
+func listPendingTasks(qname string, pageNum, pageSize int) {
 	i := createInspector()
 	tasks, err := i.ListPendingTasks(qname, asynq.PageSize(pageSize), asynq.Page(pageNum))
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Printf("No pending tasks in %q queue\n", qname)
-		return nil
+		return
 	}
 	printTable(
 		[]string{"ID", "Type", "Payload"},
@@ -292,18 +301,18 @@ func listPendingTasks(qname string, pageNum, pageSize int) error {
 			}
 		},
 	)
-	return nil
 }

-func listScheduledTasks(qname string, pageNum, pageSize int) error {
+func listScheduledTasks(qname string, pageNum, pageSize int) {
 	i := createInspector()
 	tasks, err := i.ListScheduledTasks(qname, asynq.PageSize(pageSize), asynq.Page(pageNum))
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Printf("No scheduled tasks in %q queue\n", qname)
-		return nil
+		return
 	}
 	printTable(
 		[]string{"ID", "Type", "Payload", "Process In"},
@@ -313,7 +322,6 @@ func listScheduledTasks(qname string, pageNum, pageSize int) error {
 			}
 		},
 	)
-	return nil
 }

 // formatProcessAt formats next process at time to human friendly string.
@@ -327,15 +335,16 @@ func formatProcessAt(processAt time.Time) string {
 	return fmt.Sprintf("in %v", d.Round(time.Second))
 }

-func listRetryTasks(qname string, pageNum, pageSize int) error {
+func listRetryTasks(qname string, pageNum, pageSize int) {
 	i := createInspector()
 	tasks, err := i.ListRetryTasks(qname, asynq.PageSize(pageSize), asynq.Page(pageNum))
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Printf("No retry tasks in %q queue\n", qname)
-		return nil
+		return
 	}
 	printTable(
 		[]string{"ID", "Type", "Payload", "Next Retry", "Last Error", "Last Failed", "Retried", "Max Retry"},
@@ -346,18 +355,18 @@ func listRetryTasks(qname string, pageNum, pageSize int) error {
 			}
 		},
 	)
-	return nil
 }

-func listArchivedTasks(qname string, pageNum, pageSize int) error {
+func listArchivedTasks(qname string, pageNum, pageSize int) {
 	i := createInspector()
 	tasks, err := i.ListArchivedTasks(qname, asynq.PageSize(pageSize), asynq.Page(pageNum))
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Printf("No archived tasks in %q queue\n", qname)
-		return nil
+		return
 	}
 	printTable(
 		[]string{"ID", "Type", "Payload", "Last Failed", "Last Error"},
@@ -366,18 +375,18 @@ func listArchivedTasks(qname string, pageNum, pageSize int) error {
 				fmt.Fprintf(w, tmpl, t.ID, t.Type, sprintBytes(t.Payload), formatPastTime(t.LastFailedAt), t.LastErr)
 			}
 		})
-	return nil
 }

-func listCompletedTasks(qname string, pageNum, pageSize int) error {
+func listCompletedTasks(qname string, pageNum, pageSize int) {
 	i := createInspector()
 	tasks, err := i.ListCompletedTasks(qname, asynq.PageSize(pageSize), asynq.Page(pageNum))
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Printf("No completed tasks in %q queue\n", qname)
-		return nil
+		return
 	}
 	printTable(
 		[]string{"ID", "Type", "Payload", "CompletedAt", "Result"},
@@ -386,18 +395,18 @@ func listCompletedTasks(qname string, pageNum, pageSize int) error {
 				fmt.Fprintf(w, tmpl, t.ID, t.Type, sprintBytes(t.Payload), formatPastTime(t.CompletedAt), sprintBytes(t.Result))
 			}
 		})
-	return nil
 }

-func listAggregatingTasks(qname, group string, pageNum, pageSize int) error {
+func listAggregatingTasks(qname, group string, pageNum, pageSize int) {
 	i := createInspector()
 	tasks, err := i.ListAggregatingTasks(qname, group, asynq.PageSize(pageSize), asynq.Page(pageNum))
 	if err != nil {
-		return err
+		fmt.Println(err)
+		os.Exit(1)
 	}
 	if len(tasks) == 0 {
 		fmt.Printf("No aggregating tasks in group %q \n", group)
-		return nil
+		return
 	}
 	printTable(
 		[]string{"ID", "Type", "Payload", "Group"},
@@ -407,42 +416,38 @@ func listAggregatingTasks(qname, group string, pageNum, pageSize int) error {
 			}
 		},
 	)
-	return nil
 }

-func taskCancel(cmd *cobra.Command, args []string) error {
+func taskCancel(cmd *cobra.Command, args []string) {
 	i := createInspector()
-	var firstErr error
 	for _, id := range args {
 		if err := i.CancelProcessing(id); err != nil {
 			fmt.Printf("error: could not send cancelation signal: %v\n", err)
-			if firstErr == nil {
-				firstErr = err
-			}
 			continue
 		}
 		fmt.Printf("Sent cancelation signal for task %s\n", id)
 	}
-	return firstErr
 }

-func taskInspect(cmd *cobra.Command, args []string) error {
+func taskInspect(cmd *cobra.Command, args []string) {
 	qname, err := cmd.Flags().GetString("queue")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	id, err := cmd.Flags().GetString("id")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	i := createInspector()
 	info, err := i.GetTaskInfo(qname, id)
 	if err != nil {
-		return fmt.Errorf("could not get task info: %v", err)
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	printTaskInfo(info)
-	return nil
 }

 func printTaskInfo(info *asynq.TaskInfo) {
@@ -481,72 +486,80 @@ func formatPastTime(t time.Time) string {
 	return t.Format(time.UnixDate)
 }

-func taskArchive(cmd *cobra.Command, args []string) error {
+func taskArchive(cmd *cobra.Command, args []string) {
 	qname, err := cmd.Flags().GetString("queue")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	id, err := cmd.Flags().GetString("id")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	i := createInspector()
 	err = i.ArchiveTask(qname, id)
 	if err != nil {
-		return fmt.Errorf("could not archive task: %v", err)
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	fmt.Println("task archived")
-	return nil
 }

-func taskDelete(cmd *cobra.Command, args []string) error {
+func taskDelete(cmd *cobra.Command, args []string) {
 	qname, err := cmd.Flags().GetString("queue")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	id, err := cmd.Flags().GetString("id")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	i := createInspector()
 	err = i.DeleteTask(qname, id)
 	if err != nil {
-		return fmt.Errorf("could not delete task: %v", err)
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	fmt.Println("task deleted")
-	return nil
 }

-func taskRun(cmd *cobra.Command, args []string) error {
+func taskRun(cmd *cobra.Command, args []string) {
 	qname, err := cmd.Flags().GetString("queue")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	id, err := cmd.Flags().GetString("id")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	i := createInspector()
 	err = i.RunTask(qname, id)
 	if err != nil {
-		return fmt.Errorf("could not run task: %v", err)
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	fmt.Println("task is now pending")
-	return nil
 }

-func taskEnqueue(cmd *cobra.Command, args []string) error {
+func taskEnqueue(cmd *cobra.Command, args []string) {
 	typeName, err := cmd.Flags().GetString("type_name")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	payload, err := cmd.Flags().GetString("payload")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	// For all of the optional flags, we need to explicitly check whether they were set or
@@ -556,7 +569,8 @@ func taskEnqueue(cmd *cobra.Command, args []string) error {
 	if cmd.Flags().Changed("retry") {
 		retry, err := cmd.Flags().GetInt("retry")
 		if err != nil {
-			return err
+			fmt.Printf("error: %v\n", err)
+			os.Exit(1)
 		}
 		opts = append(opts, asynq.MaxRetry(retry))
 	}
@@ -564,7 +578,8 @@ func taskEnqueue(cmd *cobra.Command, args []string) error {
 	if cmd.Flags().Changed("queue") {
 		queue, err := cmd.Flags().GetString("queue")
 		if err != nil {
-			return err
+			fmt.Printf("error: %v\n", err)
+			os.Exit(1)
 		}
 		opts = append(opts, asynq.Queue(queue))
 	}
@@ -572,63 +587,41 @@ func taskEnqueue(cmd *cobra.Command, args []string) error {
 	if cmd.Flags().Changed("id") {
 		id, err := cmd.Flags().GetString("id")
 		if err != nil {
-			return err
+			fmt.Printf("error: %v\n", err)
+			os.Exit(1)
 		}
 		opts = append(opts, asynq.TaskID(id))
 	}

 	if cmd.Flags().Changed("timeout") {
-		d, err := getDuration(cmd, "timeout")
-		if err != nil {
-			return err
-		}
-		opts = append(opts, asynq.Timeout(d))
+		opts = append(opts, asynq.Timeout(getDuration(cmd, "timeout")))
 	}

 	if cmd.Flags().Changed("deadline") {
-		t, err := getTime(cmd, "deadline")
-		if err != nil {
-			return err
-		}
-		opts = append(opts, asynq.Deadline(t))
+		opts = append(opts, asynq.Deadline(getTime(cmd, "deadline")))
 	}

 	if cmd.Flags().Changed("unique") {
-		d, err := getDuration(cmd, "unique")
-		if err != nil {
-			return err
-		}
-		opts = append(opts, asynq.Unique(d))
+		opts = append(opts, asynq.Unique(getDuration(cmd, "unique")))
 	}

 	if cmd.Flags().Changed("process_at") {
-		t, err := getTime(cmd, "process_at")
-		if err != nil {
-			return err
-		}
-		opts = append(opts, asynq.ProcessAt(t))
+		opts = append(opts, asynq.ProcessAt(getTime(cmd, "process_at")))
 	}

 	if cmd.Flags().Changed("process_in") {
-		d, err := getDuration(cmd, "process_in")
-		if err != nil {
-			return err
-		}
-		opts = append(opts, asynq.ProcessIn(d))
+		opts = append(opts, asynq.ProcessIn(getDuration(cmd, "process_in")))
 	}

 	if cmd.Flags().Changed("retention") {
-		d, err := getDuration(cmd, "retention")
-		if err != nil {
-			return err
-		}
-		opts = append(opts, asynq.Retention(d))
+		opts = append(opts, asynq.Retention(getDuration(cmd, "retention")))
 	}

 	if cmd.Flags().Changed("group") {
 		group, err := cmd.Flags().GetString("group")
 		if err != nil {
-			return err
+			fmt.Printf("error: %v\n", err)
+			os.Exit(1)
 		}
 		opts = append(opts, asynq.Group(group))
 	}
@@ -638,21 +631,23 @@ func taskEnqueue(cmd *cobra.Command, args []string) error {

 	taskInfo, err := c.Enqueue(task)
 	if err != nil {
-		return fmt.Errorf("could not enqueue task: %v", err)
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	fmt.Printf("Enqueued task %s to queue %s\n", taskInfo.ID, taskInfo.Queue)
-	return nil
 }

-func taskArchiveAll(cmd *cobra.Command, args []string) error {
+func taskArchiveAll(cmd *cobra.Command, args []string) {
 	qname, err := cmd.Flags().GetString("queue")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	state, err := cmd.Flags().GetString("state")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	i := createInspector()
@@ -667,35 +662,35 @@ func taskArchiveAll(cmd *cobra.Command, args []string) error {
 	case "aggregating":
 		group, err := cmd.Flags().GetString("group")
 		if err != nil {
-			return err
+			fmt.Printf("error: %v\n", err)
+			os.Exit(1)
 		}
 		if group == "" {
-			return fmt.Errorf("flag --group is required for aggregating tasks")
+			fmt.Println("error: Flag --group is required for aggregating tasks")
+			os.Exit(1)
 		}
 		n, err = i.ArchiveAllAggregatingTasks(qname, group)
-		if err != nil {
-			return err
-		}
-		fmt.Printf("%d tasks archived\n", n)
-		return nil
 	default:
-		return fmt.Errorf("unsupported state %q", state)
+		fmt.Printf("error: unsupported state %q\n", state)
+		os.Exit(1)
 	}
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	fmt.Printf("%d tasks archived\n", n)
-	return nil
 }

-func taskDeleteAll(cmd *cobra.Command, args []string) error {
+func taskDeleteAll(cmd *cobra.Command, args []string) {
 	qname, err := cmd.Flags().GetString("queue")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	state, err := cmd.Flags().GetString("state")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	i := createInspector()
@@ -714,35 +709,35 @@ func taskDeleteAll(cmd *cobra.Command, args []string) error {
 	case "aggregating":
 		group, err := cmd.Flags().GetString("group")
 		if err != nil {
-			return err
+			fmt.Printf("error: %v\n", err)
+			os.Exit(1)
 		}
 		if group == "" {
-			return fmt.Errorf("flag --group is required for aggregating tasks")
+			fmt.Println("error: Flag --group is required for aggregating tasks")
+			os.Exit(1)
 		}
 		n, err = i.DeleteAllAggregatingTasks(qname, group)
-		if err != nil {
-			return err
-		}
-		fmt.Printf("%d tasks deleted\n", n)
-		return nil
 	default:
-		return fmt.Errorf("unsupported state %q", state)
+		fmt.Printf("error: unsupported state %q\n", state)
+		os.Exit(1)
 	}
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	fmt.Printf("%d tasks deleted\n", n)
-	return nil
 }

-func taskRunAll(cmd *cobra.Command, args []string) error {
+func taskRunAll(cmd *cobra.Command, args []string) {
 	qname, err := cmd.Flags().GetString("queue")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	state, err := cmd.Flags().GetString("state")
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}

 	i := createInspector()
@@ -757,23 +752,21 @@ func taskRunAll(cmd *cobra.Command, args []string) error {
 	case "aggregating":
 		group, err := cmd.Flags().GetString("group")
 		if err != nil {
-			return err
+			fmt.Printf("error: %v\n", err)
+			os.Exit(1)
 		}
 		if group == "" {
-			return fmt.Errorf("flag --group is required for aggregating tasks")
+			fmt.Println("error: Flag --group is required for aggregating tasks")
+			os.Exit(1)
 		}
 		n, err = i.RunAllAggregatingTasks(qname, group)
-		if err != nil {
-			return err
-		}
-		fmt.Printf("%d tasks are now pending\n", n)
-		return nil
 	default:
-		return fmt.Errorf("unsupported state %q", state)
+		fmt.Printf("error: unsupported state %q\n", state)
+		os.Exit(1)
 	}
 	if err != nil {
-		return err
+		fmt.Printf("error: %v\n", err)
+		os.Exit(1)
 	}
 	fmt.Printf("%d tasks are now pending\n", n)
-	return nil
 }
--- a/tools/go.mod
+++ b/tools/go.mod
@@ -1,17 +1,17 @@
 module github.com/hibiken/asynq/tools

-go 1.22
+go 1.23.0

 require (
 	github.com/MakeNowJust/heredoc/v2 v2.0.1
 	github.com/fatih/color v1.18.0
 	github.com/gdamore/tcell/v2 v2.5.1
-	github.com/google/go-cmp v0.6.0
+	github.com/google/go-cmp v0.7.0
 	github.com/hibiken/asynq v0.25.0
 	github.com/hibiken/asynq/x v0.0.0-20220131170841-349f4c50fb1d
 	github.com/mattn/go-runewidth v0.0.16
 	github.com/mitchellh/go-homedir v1.1.0
-	github.com/prometheus/client_golang v1.11.1
+	github.com/prometheus/client_golang v1.23.2
 	github.com/redis/go-redis/v9 v9.7.0
 	github.com/spf13/cobra v1.1.1
 	github.com/spf13/pflag v1.0.5
@@ -21,11 +21,10 @@ require (

 require (
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/fsnotify/fsnotify v1.4.9 // indirect
 	github.com/gdamore/encoding v1.0.0 // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
@@ -33,23 +32,24 @@ require (
 	github.com/magiconair/properties v1.8.1 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/mitchellh/mapstructure v1.1.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/pelletier/go-toml v1.2.0 // indirect
-	github.com/prometheus/client_model v0.2.0 // indirect
-	github.com/prometheus/common v0.26.0 // indirect
-	github.com/prometheus/procfs v0.6.0 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.66.1 // indirect
+	github.com/prometheus/procfs v0.16.1 // indirect
 	github.com/rivo/uniseg v0.2.0 // indirect
 	github.com/robfig/cron/v3 v3.0.1 // indirect
 	github.com/spf13/afero v1.1.2 // indirect
 	github.com/spf13/cast v1.7.0 // indirect
 	github.com/spf13/jwalterweatherman v1.0.0 // indirect
 	github.com/subosito/gotenv v1.2.0 // indirect
-	golang.org/x/sys v0.26.0 // indirect
+	go.yaml.in/yaml/v2 v2.4.2 // indirect
+	golang.org/x/sys v0.35.0 // indirect
 	golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf // indirect
-	golang.org/x/text v0.3.8 // indirect
+	golang.org/x/text v0.28.0 // indirect
 	golang.org/x/time v0.7.0 // indirect
-	google.golang.org/protobuf v1.35.1 // indirect
+	google.golang.org/protobuf v1.36.8 // indirect
 	gopkg.in/ini.v1 v1.51.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
--- a/tools/go.sum
+++ b/tools/go.sum
@@ -39,8 +39,8 @@ github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
@@ -101,8 +101,6 @@ github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw
 github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
-github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
-github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
@@ -113,8 +111,8 @@ github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
@@ -173,6 +171,8 @@ github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7V
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
+github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
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@@ -183,6 +183,8 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
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@@ -197,7 +199,6 @@ github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D
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-github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
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@@ -214,6 +215,8 @@ github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJ
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
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@@ -241,25 +244,28 @@ github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDf
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@@ -269,8 +275,8 @@ github.com/robfig/cron/v3 v3.0.1 h1:WdRxkvbJztn8LMz/QEvLN5sBU+xKpSqwwUO1Pjr4qDs=
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@@ -305,8 +311,9 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
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@@ -321,6 +328,8 @@ go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
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+go.yaml.in/yaml/v2 v2.4.2 h1:DzmwEr2rDGHl7lsFgAHxmNz/1NlQ7xLIrlN2h5d1eGI=
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@@ -411,8 +420,8 @@ golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBc
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-golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
-golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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@@ -422,8 +431,8 @@ golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
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-golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY=
-golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
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@@ -487,13 +496,14 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
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 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
@@ -509,8 +519,9 @@ gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=