Swift compiler segfault

_crash.md

This Swift class segfaults the compiler since the very first beta. I've submitted a bug report to Apple after it wasn't fixed in beta 2.

Does anyone have a hint what could be going on?

1.	While emitting IR for source file /Users/aschuch/Desktop/Example/Example/Foo.swift
2.	While emitting class metadata for 'Foo' at /Users/aschuch/Desktop/Example/Example/Foo.swift:11:1
<unknown>:0: error: unable to execute command: Segmentation fault: 11
<unknown>:0: error: swift frontend command failed due to signal (use -v to see invocation)
Command /Applications/Xcode6-Beta3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift failed with exit code 254

Foo.swift

import UIKit

class Foo<T: NSCoding>: NSObject, NSCoding {
	let value: T
	
	init(value: T) {
		self.value = value
		super.init()
	}
	
	init(coder aDecoder: NSCoder!) {
		value = aDecoder.decodeObjectForKey("value") as T
		super.init()
	}
	
	func encodeWithCoder(aCoder: NSCoder!) {
		aCoder.encodeObject(value, forKey: "value")
	}
}