diff --git a/src/librustrt/lib.rs b/src/librustrt/lib.rs
index 066e8c51aef..47e00174c78 100644
--- a/src/librustrt/lib.rs
+++ b/src/librustrt/lib.rs
@@ -126,5 +126,5 @@ pub mod shouldnt_be_public {
 
 #[cfg(not(test))]
 mod std {
-    pub use core::{fmt, option, cmp};
+    pub use core::{fmt, option, cmp, kinds};
 }
diff --git a/src/librustrt/libunwind.rs b/src/librustrt/libunwind.rs
index e4565be284f..2feea7fa0a4 100644
--- a/src/librustrt/libunwind.rs
+++ b/src/librustrt/libunwind.rs
@@ -25,6 +25,7 @@ use libc;
 
 #[cfg(any(not(target_arch = "arm"), target_os = "ios"))]
 #[repr(C)]
+#[deriving(Copy)]
 pub enum _Unwind_Action {
     _UA_SEARCH_PHASE = 1,
     _UA_CLEANUP_PHASE = 2,