gistfile1.txt

fkaa$ RUST_BACKTRACE=1 cargo run --example window
     Running `target/debug/examples/window`
Pixel format of the window: PixelFormat { hardware_accelerated: true, color_bits: 24, alpha_bits: 8, depth_bits: 24, stencil_bits: 8, stereoscopy: false, double_buffer: true, multisampling: None, srgb: true }
OpenGL version 4.1 INTEL-10.12.13
retain 2
retain 1
retain 1
2016-03-02 14:48:17.158 window[65539:2611628] -[NSConcreteHashTable windowNumber]: unrecognized selector sent to instance 0x7ff558579840
thread '<main>' panicked at 'called `Option::unwrap()` on a `None` value', ../src/libcore/option.rs:367
stack backtrace:
   1:        0x10f08fb58 - sys::backtrace::tracing::imp::write::h71b7c99a21cff148fMt
   2:        0x10f090f3f - panicking::log_panic::_<closure>::closure.40876
   3:        0x10f0909e2 - panicking::log_panic::h2d79dd1ccae87ed8BFx
   4:        0x10f08a516 - sys_common::unwind::begin_unwind_inner::hb8ac08b8a72b9d1bhPs
   5:        0x10f08a68e - sys_common::unwind::begin_unwind_fmt::h076ba7ed08690e9dnOs
   6:        0x10f08f177 - rust_begin_unwind
   7:        0x10f0b0cc0 - panicking::panic_fmt::h3967afc085fe8067LFK
   8:        0x10f0b0fbc - panicking::panic::h77d028a733b1a80eiEK
   9:        0x10f090643 - rt::lang_start::h216753457f385fdaJCx
  10:        0x10f062409 - main
fatal runtime error: Could not unwind stack, error = 5An unknown error occurred