Follow rename of nightly optin_builtin_traits feature to auto_traits

This was renamed in rust-lang/rust#79336. Signed-off-by: Anders Kaseorg <andersk@mit.edu>
andersk · Dec 28, 2020 · b2cfb2f · b2cfb2f
1 parent 563f685
commit b2cfb2f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/gc/src/lib.rs b/gc/src/lib.rs
@@ -6,7 +6,7 @@
 
 #![cfg_attr(
     feature = "nightly",
-    feature(coerce_unsized, optin_builtin_traits, unsize, specialization)
+    feature(coerce_unsized, auto_traits, unsize, specialization)
 )]
 
 use crate::gc::GcBox;