diff --git a/library/alloc/src/collections/btree/map.rs b/library/alloc/src/collections/btree/map.rs
index 12a7322d8e7e..622983996aa0 100644
--- a/library/alloc/src/collections/btree/map.rs
+++ b/library/alloc/src/collections/btree/map.rs
@@ -859,7 +859,7 @@ impl<K, V> BTreeMap<K, V> {
     /// assert_eq!(err.entry.get(), &"a");
     /// assert_eq!(err.value, "b");
     /// ```
-    #[unstable(feature = "map_try_insert", issue = "none")]
+    #[unstable(feature = "map_try_insert", issue = "82766")]
     pub fn try_insert(&mut self, key: K, value: V) -> Result<&mut V, OccupiedError<'_, K, V>>
     where
         K: Ord,
diff --git a/library/alloc/src/collections/btree/map/entry.rs b/library/alloc/src/collections/btree/map/entry.rs
index a5ece31d67b6..6b30d9597739 100644
--- a/library/alloc/src/collections/btree/map/entry.rs
+++ b/library/alloc/src/collections/btree/map/entry.rs
@@ -74,7 +74,7 @@ impl<K: Debug + Ord, V: Debug> Debug for OccupiedEntry<'_, K, V> {
 /// The error returned by [`try_insert`](BTreeMap::try_insert) when the key already exists.
 ///
 /// Contains the occupied entry, and the value that was not inserted.
-#[unstable(feature = "map_try_insert", issue = "none")]
+#[unstable(feature = "map_try_insert", issue = "82766")]
 pub struct OccupiedError<'a, K: 'a, V: 'a> {
     /// The entry in the map that was already occupied.
     pub entry: OccupiedEntry<'a, K, V>,
@@ -82,7 +82,7 @@ pub struct OccupiedError<'a, K: 'a, V: 'a> {
     pub value: V,
 }
 
-#[unstable(feature = "map_try_insert", issue = "none")]
+#[unstable(feature = "map_try_insert", issue = "82766")]
 impl<K: Debug + Ord, V: Debug> Debug for OccupiedError<'_, K, V> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("OccupiedError")
@@ -93,7 +93,7 @@ impl<K: Debug + Ord, V: Debug> Debug for OccupiedError<'_, K, V> {
     }
 }
 
-#[unstable(feature = "map_try_insert", issue = "none")]
+#[unstable(feature = "map_try_insert", issue = "82766")]
 impl<'a, K: Debug + Ord, V: Debug> fmt::Display for OccupiedError<'a, K, V> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(
diff --git a/library/std/src/collections/hash/map.rs b/library/std/src/collections/hash/map.rs
index cd6787cf5881..233afa923899 100644
--- a/library/std/src/collections/hash/map.rs
+++ b/library/std/src/collections/hash/map.rs
@@ -867,7 +867,7 @@ where
     /// assert_eq!(err.entry.get(), &"a");
     /// assert_eq!(err.value, "b");
     /// ```
-    #[unstable(feature = "map_try_insert", issue = "none")]
+    #[unstable(feature = "map_try_insert", issue = "82766")]
     pub fn try_insert(&mut self, key: K, value: V) -> Result<&mut V, OccupiedError<'_, K, V>> {
         match self.entry(key) {
             Occupied(entry) => Err(OccupiedError { entry, value }),
@@ -1887,7 +1887,7 @@ impl<K: Debug, V> Debug for VacantEntry<'_, K, V> {
 /// The error returned by [`try_insert`](HashMap::try_insert) when the key already exists.
 ///
 /// Contains the occupied entry, and the value that was not inserted.
-#[unstable(feature = "map_try_insert", issue = "none")]
+#[unstable(feature = "map_try_insert", issue = "82766")]
 pub struct OccupiedError<'a, K: 'a, V: 'a> {
     /// The entry in the map that was already occupied.
     pub entry: OccupiedEntry<'a, K, V>,
@@ -1895,7 +1895,7 @@ pub struct OccupiedError<'a, K: 'a, V: 'a> {
     pub value: V,
 }
 
-#[unstable(feature = "map_try_insert", issue = "none")]
+#[unstable(feature = "map_try_insert", issue = "82766")]
 impl<K: Debug, V: Debug> Debug for OccupiedError<'_, K, V> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("OccupiedError")
@@ -1906,7 +1906,7 @@ impl<K: Debug, V: Debug> Debug for OccupiedError<'_, K, V> {
     }
 }
 
-#[unstable(feature = "map_try_insert", issue = "none")]
+#[unstable(feature = "map_try_insert", issue = "82766")]
 impl<'a, K: Debug, V: Debug> fmt::Display for OccupiedError<'a, K, V> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(
diff --git a/library/std/src/error.rs b/library/std/src/error.rs
index a7f744ce5153..80c35307d52a 100644
--- a/library/std/src/error.rs
+++ b/library/std/src/error.rs
@@ -470,7 +470,7 @@ impl Error for char::DecodeUtf16Error {
     }
 }
 
-#[unstable(feature = "map_try_insert", issue = "none")]
+#[unstable(feature = "map_try_insert", issue = "82766")]
 impl<'a, K: Debug + Ord, V: Debug> Error
     for crate::collections::btree_map::OccupiedError<'a, K, V>
 {
@@ -480,7 +480,7 @@ impl<'a, K: Debug + Ord, V: Debug> Error
     }
 }
 
-#[unstable(feature = "map_try_insert", issue = "none")]
+#[unstable(feature = "map_try_insert", issue = "82766")]
 impl<'a, K: Debug, V: Debug> Error for crate::collections::hash_map::OccupiedError<'a, K, V> {
     #[allow(deprecated)]
     fn description(&self) -> &str {