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-rw-r--r--library/core/src/alloc/mod.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/library/core/src/alloc/mod.rs b/library/core/src/alloc/mod.rs
index 94efa76664f..61553157478 100644
--- a/library/core/src/alloc/mod.rs
+++ b/library/core/src/alloc/mod.rs
@@ -107,6 +107,7 @@ impl fmt::Display for AllocError {
 ///
 /// [*currently allocated*]: #currently-allocated-memory
 #[unstable(feature = "allocator_api", issue = "32838")]
+#[const_trait]
 pub unsafe trait Allocator {
     /// Attempts to allocate a block of memory.
     ///