Swift: Conformance to a base class and a protocol

Test.swift

class BaseClass {}
protocol Protocol {}

class Container<T where T: BaseClass, T: Protocol> {
    var array: [T] = []
}

class FirstConformClass: BaseClass, Protocol {}
class SecondConformClass: BaseClass, Protocol {}

// This doesn't work because the base class itself doesn't conform to the protocol.
//let container = Container()

// Instantiating the container with a concrete conform type does work...
let container = Container<FirstConformClass>()
container.array.append(FirstConformClass())

// ...but in that case objects of type SecondConformClass cannot be stored in the array
//container.array.append(SecondConformClass())

Sample code for my Stack Overflow question: http://stackoverflow.com/questions/25767156/swift-property-conforming-to-a-specific-class-and-in-the-same-time-to-multiple/25771265?noredirect=1#comment44436658_25771265