make PhantomData #[structural_match].

2 files changed, 2 insertions, 0 deletions

diff --git a/src/libcore/lib.rs b/src/libcore/lib.rs
index 1bbc7892c6b..b55ec67b0cc 100644
--- a/src/libcore/lib.rs
+++ b/src/libcore/lib.rs
@@ -129,6 +129,7 @@
 #![feature(const_transmute)]
 #![feature(reverse_bits)]
 #![feature(non_exhaustive)]
+#![feature(structural_match)]
 
 #[prelude_import]
 #[allow(unused)]
diff --git a/src/libcore/marker.rs b/src/libcore/marker.rs
index 662a8ddd968..3bcdfabbb24 100644
--- a/src/libcore/marker.rs
+++ b/src/libcore/marker.rs
@@ -578,6 +578,7 @@ macro_rules! impls{
 ///
 /// [drop check]: ../../nomicon/dropck.html
 #[lang = "phantom_data"]
+#[structural_match]
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct PhantomData<T:?Sized>;