panic when closing window during render, Windows 10

[radix]

Hi, I have a program written with Piston/glutin_window that is getting a panic sometimes when I close the window. Here it is:

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: IoError(Error { repr: Os { code: 6, message: "The handle is invalid." } })', ../src/libcore\result.rs:799
stack backtrace:
   0:     0x7ff69262df44 - <std::sync::mpsc::RecvError as core::fmt::Debug>::fmt::h644c369fc7e7b3cf
   1:     0x7ff69262c3f3 - std::rt::lang_start::h538f8960e7644c80
   2:     0x7ff69262cdbd - std::panicking::rust_panic_with_hook::hc303199e04562edf
   3:     0x7ff69262cc56 - std::panicking::begin_panic_fmt::hc321cece241bb2f5
   4:     0x7ff69262cb74 - std::panicking::begin_panic_fmt::hc321cece241bb2f5
   5:     0x7ff69262cb0b - rust_begin_unwind
   6:     0x7ff692635595 - core::panicking::panic_fmt::h27224b181f9f037f
   7:     0x7ff69255ca8b - core::result::unwrap_failed<glutin::ContextError>
                        at C:\bot\slave\stable-dist-rustc-win-msvc-64\build\src\libcore\macros.rs:29
   8:     0x7ff692558bb1 - core::result::Result<(), glutin::ContextError>::unwrap<(),glutin::ContextError>
                        at C:\bot\slave\stable-dist-rustc-win-msvc-64\build\src\libcore\result.rs:737
   9:     0x7ff6925658ea - glutin_window::{{impl}}::make_current
                        at C:\Users\radix\.cargo\registry\src\github.com-1ecc6299db9ec823\pistoncore-glutin_window-0.33.0\src\lib.rs:413
  10:     0x7ff6924bc314 - piston_window::PistonWindow<glutin_window::GlutinWindow>::draw_2d<glutin_window::GlutinWindow,input::event::Event<input::Input>,closure,()>
                        at C:\Users\radix\.cargo\registry\src\github.com-1ecc6299db9ec823\piston_window-0.58.0\src\lib.rs:210
  11:     0x7ff69250b304 - main::App::render
                        at C:\Users\radix\Projects\circles\src\main.rs:69
  12:     0x7ff69250ced6 - main::main
                        at C:\Users\radix\Projects\circles\src\main.rs:320
  13:     0x7ff692630411 - _rust_maybe_catch_panic
  14:     0x7ff69262be2a - std::rt::lang_start::h538f8960e7644c80
  15:     0x7ff69252bc99 - main
  16:     0x7ff69263aa88 - __scrt_common_main_seh
                        at f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253
  17:     0x7ff98e5538e3 - BaseThreadInitThunk
error: process didn't exit successfully: `target\debug\main.exe` (exit code: 101)

I'm not completely sure if this is glutin_window's fault or glutin's fault, but I think glutin_window since that's what I see deepest in the stack (glutin_window -> Result::unwrap). I also don't know if you consider this a bug or not. Probably the best thing would be for me to handle the window-close event in my game loop and cleanly shut down, though I haven't figured out how to do that yet.