rollup merge of #22286: nikomatsakis/variance-4b

Conflicts:
	src/librustc/middle/infer/combine.rs
	src/librustc_typeck/check/wf.rs

2 files changed, 3 insertions, 3 deletions

diff --git a/src/libcoretest/mem.rs b/src/libcoretest/mem.rs
index 421ce76caaf..5aeb330b78b 100644
--- a/src/libcoretest/mem.rs
+++ b/src/libcoretest/mem.rs
@@ -92,7 +92,7 @@ fn test_transmute_copy() {
 
 #[test]
 fn test_transmute() {
-    trait Foo {}
+    trait Foo { fn dummy(&self) { } }
     impl Foo for int {}
 
     let a = box 100 as Box<Foo>;
diff --git a/src/libcoretest/ptr.rs b/src/libcoretest/ptr.rs
index 9c2e242c105..57456bfb1a7 100644
--- a/src/libcoretest/ptr.rs
+++ b/src/libcoretest/ptr.rs
@@ -171,8 +171,8 @@ fn test_set_memory() {
 #[test]
 fn test_unsized_unique() {
     let xs: &mut [_] = &mut [1, 2, 3];
-    let ptr = Unique(xs as *mut [_]);
-    let ys = unsafe { &mut *ptr.ptr };
+    let ptr = unsafe { Unique::new(xs as *mut [_]) };
+    let ys = unsafe { &mut **ptr };
     let zs: &mut [_] = &mut [1, 2, 3];
     assert!(ys == zs);
 }