Why saving data to SQLite database doesn't work with Swift 2?

I'm using SQLite.swift and I'm using these code from demo of SQLite.swift.

import UIKit
import SQLite

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        let db = try! Connection()
        let users = Table("users")
        let id = Expression<Int64>("id")
        let email = Expression<String>("email")
        let name = Expression<String?>("name")
        try! db.run(users.create { t in
            t.column(id, primaryKey: true)
            t.column(email, unique: true, check: email.like("%@%"))
            t.column(name)
        })
        try! db.run(users.insert(email <- "alice@mac.com"))
        for user in db.prepare(users) {
            print("id: \(user[id]), email: \(user[email])")
        }
    }
}

The first time I ran it, the output was:

("SELECT * FROM \"users\"", [])
id: 1, email: alice@mac.com

Then I removed the line 17 ( try! db.run(users.insert(email <- "alice@mac.com")) ) and run again, debugger output changed to:

("SELECT * FROM \"users\"", [])

Looks like alice@mac.com didn't save to database. So where I did it wrong? Or how to save it into SQLite database?

P.S. I'm using Xcode 7 beta 5, Swift 2.0