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-rw-r--r--compiler/rustc_feature/src/builtin_attrs.rs5
1 files changed, 0 insertions, 5 deletions
diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs
index 4112ae80980..71941c8a206 100644
--- a/compiler/rustc_feature/src/builtin_attrs.rs
+++ b/compiler/rustc_feature/src/builtin_attrs.rs
@@ -933,11 +933,6 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
         "#[rustc_has_incoherent_inherent_impls] allows the addition of incoherent inherent impls for \
          the given type by annotating all impl items with #[rustc_allow_incoherent_impl]."
     ),
-    rustc_attr!(
-        rustc_box, AttributeType::Normal, template!(Word), ErrorFollowing, EncodeCrossCrate::No,
-        "#[rustc_box] allows creating boxes \
-        and it is only intended to be used in `alloc`."
-    ),
 
     BuiltinAttribute {
         name: sym::rustc_diagnostic_item,