diff --git a/runtime/src/accounts.rs b/runtime/src/accounts.rs
index 692e42b1c1..015640a3ac 100644
--- a/runtime/src/accounts.rs
+++ b/runtime/src/accounts.rs
@@ -791,7 +791,7 @@ impl Accounts {
         )
     }
 
-    pub fn load_to_collect_rent_eagerly<R: RangeBounds<Pubkey>>(
+    pub fn load_to_collect_rent_eagerly<R: RangeBounds<Pubkey> + std::fmt::Debug>(
         &self,
         ancestors: &Ancestors,
         range: R,
diff --git a/runtime/src/accounts_db.rs b/runtime/src/accounts_db.rs
index 6b45dc84bf..959924e036 100644
--- a/runtime/src/accounts_db.rs
+++ b/runtime/src/accounts_db.rs
@@ -2733,7 +2733,7 @@ impl AccountsDb {
     where
         F: Fn(&mut A, Option<(&Pubkey, AccountSharedData, Slot)>),
         A: Default,
-        R: RangeBounds<Pubkey>,
+        R: RangeBounds<Pubkey> + std::fmt::Debug,
     {
         let mut collector = A::default();
         self.accounts_index.range_scan_accounts(
diff --git a/runtime/src/accounts_index.rs b/runtime/src/accounts_index.rs
index 908e79bf19..af80249f80 100644
--- a/runtime/src/accounts_index.rs
+++ b/runtime/src/accounts_index.rs
@@ -850,7 +850,7 @@ impl<T: IsCached> AccountsIndex<T> {
     ) -> Result<(), ScanError>
     where
         F: FnMut(&Pubkey, (&T, Slot)),
-        R: RangeBounds<Pubkey>,
+        R: RangeBounds<Pubkey> + std::fmt::Debug,
     {
         {
             let locked_removed_bank_ids = self.removed_bank_ids.lock().unwrap();
@@ -1073,7 +1073,7 @@ impl<T: IsCached> AccountsIndex<T> {
         collect_all_unsorted: bool,
     ) where
         F: FnMut(&Pubkey, (&T, Slot)),
-        R: RangeBounds<Pubkey>,
+        R: RangeBounds<Pubkey> + std::fmt::Debug,
     {
         self.do_scan_accounts(
             metric_name,
@@ -1098,7 +1098,7 @@ impl<T: IsCached> AccountsIndex<T> {
         collect_all_unsorted: bool,
     ) where
         F: FnMut(&Pubkey, (&T, Slot)),
-        R: RangeBounds<Pubkey>,
+        R: RangeBounds<Pubkey> + std::fmt::Debug,
     {
         // TODO: expand to use mint index to find the `pubkey_list` below more efficiently
         // instead of scanning the entire range
@@ -1291,7 +1291,7 @@ impl<T: IsCached> AccountsIndex<T> {
         func: F,
     ) where
         F: FnMut(&Pubkey, (&T, Slot)),
-        R: RangeBounds<Pubkey>,
+        R: RangeBounds<Pubkey> + std::fmt::Debug,
     {
         // Only the rent logic should be calling this, which doesn't need the safety checks
         self.do_unchecked_scan_accounts(