diff --git a/src/map.rs b/src/map.rs
index 9d374d060..27caef811 100644
--- a/src/map.rs
+++ b/src/map.rs
@@ -260,29 +260,6 @@ where
     hash_builder.hash_one(val)
 }
 
-#[cfg(not(feature = "nightly"))]
-#[cfg_attr(feature = "inline-more", inline)]
-pub(crate) fn make_insert_hash<K, S>(hash_builder: &S, val: &K) -> u64
-where
-    K: Hash,
-    S: BuildHasher,
-{
-    use core::hash::Hasher;
-    let mut state = hash_builder.build_hasher();
-    val.hash(&mut state);
-    state.finish()
-}
-
-#[cfg(feature = "nightly")]
-#[cfg_attr(feature = "inline-more", inline)]
-pub(crate) fn make_insert_hash<K, S>(hash_builder: &S, val: &K) -> u64
-where
-    K: Hash,
-    S: BuildHasher,
-{
-    hash_builder.hash_one(val)
-}
-
 #[cfg(feature = "ahash")]
 impl<K, V> HashMap<K, V, DefaultHashBuilder> {
     /// Creates an empty `HashMap`.
@@ -1262,7 +1239,7 @@ where
     /// ```
     #[cfg_attr(feature = "inline-more", inline)]
     pub fn entry(&mut self, key: K) -> Entry<'_, K, V, S, A> {
-        let hash = make_insert_hash::<K, S>(&self.hash_builder, &key);
+        let hash = make_hash::<K, S>(&self.hash_builder, &key);
         if let Some(elem) = self.table.find(hash, equivalent_key(&key)) {
             Entry::Occupied(OccupiedEntry {
                 hash,
@@ -1782,7 +1759,7 @@ where
     /// ```
     #[cfg_attr(feature = "inline-more", inline)]
     pub fn insert(&mut self, k: K, v: V) -> Option<V> {
-        let hash = make_insert_hash::<K, S>(&self.hash_builder, &k);
+        let hash = make_hash::<K, S>(&self.hash_builder, &k);
         let hasher = make_hasher::<_, V, S>(&self.hash_builder);
         match self
             .table
@@ -1849,7 +1826,7 @@ where
     /// ```
     #[cfg_attr(feature = "inline-more", inline)]
     pub fn insert_unique_unchecked(&mut self, k: K, v: V) -> (&K, &mut V) {
-        let hash = make_insert_hash::<K, S>(&self.hash_builder, &k);
+        let hash = make_hash::<K, S>(&self.hash_builder, &k);
         let bucket = self
             .table
             .insert(hash, (k, v), make_hasher::<_, V, S>(&self.hash_builder));
@@ -4003,7 +3980,7 @@ impl<'a, K, V, S, A: Allocator + Clone> RawVacantEntryMut<'a, K, V, S, A> {
         K: Hash,
         S: BuildHasher,
     {
-        let hash = make_insert_hash::<K, S>(self.hash_builder, &key);
+        let hash = make_hash::<K, S>(self.hash_builder, &key);
         self.insert_hashed_nocheck(hash, key, value)
     }
 
@@ -4111,7 +4088,7 @@ impl<'a, K, V, S, A: Allocator + Clone> RawVacantEntryMut<'a, K, V, S, A> {
         K: Hash,
         S: BuildHasher,
     {
-        let hash = make_insert_hash::<K, S>(self.hash_builder, &key);
+        let hash = make_hash::<K, S>(self.hash_builder, &key);
         let elem = self.table.insert(
             hash,
             (key, value),
@@ -8194,7 +8171,7 @@ mod test_map {
         let mut map: HashMap<_, _> = xs.iter().copied().collect();
 
         let compute_hash = |map: &HashMap<i32, i32>, k: i32| -> u64 {
-            super::make_insert_hash::<i32, _>(map.hasher(), &k)
+            super::make_hash::<i32, _>(map.hasher(), &k)
         };
 
         // Existing key (insert)
@@ -8356,7 +8333,7 @@ mod test_map {
             loop {
                 // occasionally remove some elements
                 if i < n && rng.gen_bool(0.1) {
-                    let hash_value = super::make_insert_hash(&hash_builder, &i);
+                    let hash_value = super::make_hash(&hash_builder, &i);
 
                     unsafe {
                         let e = map.table.find(hash_value, |q| q.0.eq(&i));
diff --git a/src/rustc_entry.rs b/src/rustc_entry.rs
index ebb481e27..89447d27d 100644
--- a/src/rustc_entry.rs
+++ b/src/rustc_entry.rs
@@ -1,5 +1,5 @@
 use self::RustcEntry::*;
-use crate::map::{make_insert_hash, Drain, HashMap, IntoIter, Iter, IterMut};
+use crate::map::{make_hash, Drain, HashMap, IntoIter, Iter, IterMut};
 use crate::raw::{Allocator, Bucket, Global, RawTable};
 use core::fmt::{self, Debug};
 use core::hash::{BuildHasher, Hash};
@@ -32,7 +32,7 @@ where
     /// ```
     #[cfg_attr(feature = "inline-more", inline)]
     pub fn rustc_entry(&mut self, key: K) -> RustcEntry<'_, K, V, A> {
-        let hash = make_insert_hash(&self.hash_builder, &key);
+        let hash = make_hash(&self.hash_builder, &key);
         if let Some(elem) = self.table.find(hash, |q| q.0.eq(&key)) {
             RustcEntry::Occupied(RustcOccupiedEntry {
                 key: Some(key),