d56eb93 breaks this code

sqltest.go

package main

import (
	"database/sql"
	"fmt"
	_ "github.com/mattn/go-sqlite3"
	"os"
	"time"
)

func main() {
	if _, err := os.Stat("sqltest.db1.sqlite3"); err != nil {
		db, err := sql.Open("sqlite3", "sqltest.db1.sqlite3")
		if err != nil {
			fmt.Fprintf(os.Stderr, "failed to open: %v\n", err)
			time.Sleep(60 * time.Second)
			os.Exit(1)
		}
		db.Exec("CREATE TABLE foo (id int);")
		db.Exec("INSERT INTO foo VALUES(1);")
		db.Exec("INSERT INTO foo VALUES(2);")
		db.Close()
	}
	for i := 0; i < 10000; i++ {
		db, err := sql.Open("sqlite3", "sqltest.db1.sqlite3")
		if err != nil {
			fmt.Fprintf(os.Stderr, "[%v] failed to open: %v\n", i, err)
			time.Sleep(60 * time.Second)
			os.Exit(1)
		}

		for j := 0; j < 3; j++ {
			rows, err := db.Query("select * from foo where id=1;")
			if err != nil {
				fmt.Fprintf(os.Stderr, "[%v/%v] query failed: %v\n", i, j, err)
				time.Sleep(60 * time.Second)
				os.Exit(1)
			} else {
				for rows.Next() {
					var i int
					if err := rows.Scan(&i); err != nil {
						fmt.Fprintf(os.Stderr, "scan failed: %v\n", err)
					}
				}
				if err := rows.Err(); err != nil {
					fmt.Fprintf(os.Stderr, "post-scan failed: %v\n", err)
				}
				rows.Close()
			}
		}
		db.Close()
	}
}