refactor(render): update gfx-hal and fix compilation

1 files changed, 3 insertions, 1 deletions

diff --git a/stockton-render/src/lib.rs b/stockton-render/src/lib.rs
index 7d97d97..31cf57e 100644
--- a/stockton-render/src/lib.rs
+++ b/stockton-render/src/lib.rs
@@ -18,10 +18,12 @@
 //! You'll need to pick a backend using features. You should only pick one.
 //! On Linux & Windows, you should use vulkan.
 //! On Mac, you should use `metal`.
-//! If your targetting machines without Vulkan, OpenGL or dx11/dx12 is preferred.
+//! If you're targetting machines without Vulkan, OpenGL or dx11/dx12 is preferred.
 //! `empty` is used for testing
 #![feature(manually_drop_take)]
 
+extern crate core;
+
 #[cfg(feature = "dx11")]
 extern crate gfx_backend_dx11 as back;