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-rw-r--r--compiler/rustc_feature/src/active.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_feature/src/active.rs b/compiler/rustc_feature/src/active.rs
index fab22e4e6cf..ad0e1eac4b9 100644
--- a/compiler/rustc_feature/src/active.rs
+++ b/compiler/rustc_feature/src/active.rs
@@ -161,6 +161,9 @@ declare_features! (
     (active, staged_api, "1.0.0", None, None),
     /// Added for testing E0705; perma-unstable.
     (active, test_2018_feature, "1.31.0", None, Some(Edition::Edition2018)),
+    /// Allows non-`unsafe` —and thus, unsound— access to `Pin` constructions.
+    /// Marked `incomplete` since perma-unstable and unsound.
+    (incomplete, unsafe_pin_internals, "1.61.0", None, None),
     /// Use for stable + negative coherence and strict coherence depending on trait's
     /// rustc_strict_coherence value.
     (active, with_negative_coherence, "1.60.0", None, None),