panic: repeated read on failed websocket connection about surrealdb.go HOT 2 OPEN

package main

import (
	"github.com/gin-gonic/gin"
	"github.com/surrealdb/surrealdb.go"
	"net/http"
	"os"
)

func newdb() *surrealdb.DB {

	//
	dbUrl := os.Getenv("SURREALDB_URL")
	if dbUrl == "" {
		panic("must set SURREALDB_URL. ours looks like \"ws://<host>/rpc\"")
	}
	db, err := surrealdb.New(dbUrl)
	if err != nil {
		panic(err)
	}
	return db
}

func signin(db *surrealdb.DB) {
	_, err := db.Signin(map[string]interface{}{
		"user": "root",
		"pass": "root",
	})
	if err != nil {
		panic(err)
	}
}

func use(db *surrealdb.DB) {
	_, err := db.Use("test", "test")
	if err != nil {
		panic(err)
	}
}

// from db_test.go
type testUser struct {
	surrealdb.Basemodel `table:"test"`
	Username            string `json:"username,omitempty"`
	Password            string `json:"password,omitempty"`
	ID                  string `json:"id,omitempty"`
}

func verifyConnection(db *surrealdb.DB) {
	// just add a record to a table, then delete it

	userData, err := db.Create("users", testUser{
		Username: "johnny",
		Password: "123",
	})
	if err != nil {
		panic(err)
	}

	// unmarshal the data into a user struct
	var user []testUser
	err = surrealdb.Unmarshal(userData, &user)
	if err != nil {
		panic(err)
	}

	// Delete the users
	_, err = db.Delete("users")
	if err != nil {
		panic(err)
	}

}

func main() {

	db := newdb()
	signin(db)
	use(db)
	verifyConnection(db)

	// the simplest possible gin server
	r := gin.Default()
	r.GET("/ping", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{
			"message": "pong",
		})
	})
	r.Run() // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")
}