Closure cannot implicitly capture a mutating self parameter, while using it on mutating Int method

Question

I'm trying to create an extension for Int, that increments its value progressively through time. But it always gives me the error:

Closure cannot implicitly capture a mutating self parameter

extension Int {

mutating func increment(_ value: Int, withDuration d: CGFloat, parent: SKNode) {
    let dx = CGFloat(value)*0.1/d
    parent.run(
        .repeat(
            .sequence([
                .run { self += Int(dx) }, //Error Here!
                .wait(forDuration: 0.1)
                ]),
            count: Int(d/0.1)
        )
    )

}

}