fix build version issue

errors.go

@@ -37,15 +37,12 @@ import (
 //
 // You can also use the StackTracer interface on the returned error to get the stack trace.
 func GetStackTracer(origErr error) stackfmt.StackTracer {
-	var stacked stackfmt.StackTracer
-	errwrap.WalkDeep(origErr, func(err error) bool {
+	for err := range errwrap.UnwrapGroups(origErr) {
 		if stackTracer, ok := err.(stackfmt.StackTracer); ok {
-			stacked = stackTracer
-			return true
+			return stackTracer
 		}
-		return false
-	})
-	return stacked
+	}
+	return nil
 }
 
 // IsNil performs additional checks besides == nil

errwrap/go_123_test.go

@@ -6,7 +6,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"strconv"
 	"testing"
 )
 
@@ -116,31 +115,6 @@ func ExampleUnwrapGroups() {
 	// error 2
 }
 
-type errWalkTest struct {
-	cause error
-	sub   []error
-	v     int
-}
-
-func (e *errWalkTest) Error() string {
-	return strconv.Itoa(e.v)
-}
-
-func (e *errWalkTest) Unwrap() error {
-	return e.cause
-}
-
-func (e *errWalkTest) Errors() []error {
-	return e.sub
-}
-
-func testFind(err error, v int) bool {
-	return WalkDeep(err, func(err error) bool {
-		e := err.(*errWalkTest)
-		return e.v == v
-	})
-}
-
 func TestWalkDeep(t *testing.T) {
 	err := &errWalkTest{
 		sub: []error{

errwrap/wrap_test.go

@@ -3,6 +3,7 @@ package errwrap
 import (
 	"errors"
 	"fmt"
+	"strconv"
 	"testing"
 )
 
@@ -46,6 +47,24 @@ func WrapfFn(msg string, args ...interface{}) func(error) error {
 	}
 }
 
+type errWalkTest struct {
+	cause error
+	sub   []error
+	v     int
+}
+
+func (e *errWalkTest) Error() string {
+	return strconv.Itoa(e.v)
+}
+
+func (e *errWalkTest) Unwrap() error {
+	return e.cause
+}
+
+func (e *errWalkTest) Errors() []error {
+	return e.sub
+}
+
 func TestWalkDeepComplexTree(t *testing.T) {
 	err := &errWalkTest{v: 1, cause: &errWalkTest{
 		sub: []error{
@@ -88,3 +107,9 @@ func TestWalkDeepComplexTree(t *testing.T) {
 	assertFind(30, "Tree node A")
 	assertFind(20, "Tree node with many children")
 }
+func testFind(err error, v int) bool {
+	return WalkDeep(err, func(err error) bool {
+		e := err.(*errWalkTest)
+		return e.v == v
+	})
+}

go.mod

@@ -1,3 +1,3 @@
 module github.com/gregwebs/errors
 
-go 1.21
+go 1.23