rustup

rust-version

@@ -1 +1 @@
-c396bb3b8a16b1f2762b7c6078dc3e023f6a2493
+cbb07c27a4d78f95557a6b9cdcc32f98d67a0c22

tests/pass/union-overwrite.rs

@@ -1,5 +1,3 @@
-#![feature(untagged_unions)]
-
 #[repr(C)]
 #[derive(Clone, Copy)]
 struct Pair<T, U>(T, U);

tests/pass/union.rs

@@ -1,5 +1,3 @@
-#![feature(untagged_unions)]
-
 fn main() {
     a();
     b();
@@ -22,6 +20,7 @@ union U {
 }
 
 fn b() {
+    #[derive(Copy, Clone)]
     struct S {
         x: u32,
         y: u32,