inout parameter in closure crashes the Swift compiler

Question

All I need to do is start a new project in Swift and add to main.swift

struct Foo {
  let bar: (inout baz: String) -> ()
}

When I try to build I get an error:
Command failed due to signal: Segmentation fault: 11

Am I doing anything wrong?

I thought that perhaps inout parameters in closures are not supported, but if I define a closure like so:

let baz: (inout baz: String) -> () = { baz in
  baz += "x"
  return
}

or even

var baz: (inout baz: String) -> ()?

it compiles and runs OK

Answer 1

Just tested it in Swift 1.2 shipped with Xcode 6.3 beta, and it compiled successfully. So it was definitely a bug on the compiler that they solved in the last release