diff --git a/gossip/src/cluster_info.rs b/gossip/src/cluster_info.rs
index e7270ac265..e8da8ef426 100644
--- a/gossip/src/cluster_info.rs
+++ b/gossip/src/cluster_info.rs
@@ -2820,7 +2820,7 @@ impl Node {
     }
     pub fn new_localhost_with_pubkey(pubkey: &Pubkey) -> Self {
         let localhost_ip_addr = IpAddr::V4(Ipv4Addr::LOCALHOST);
-        let localhost_bind_addr = format!("{:?}:0", localhost_ip_addr);
+        let localhost_bind_addr = format!("{localhost_ip_addr:?}:0");
         let unspecified_bind_addr = format!("{:?}:0", IpAddr::V4(Ipv4Addr::UNSPECIFIED));
         let port_range = (1024, 65535);
 
diff --git a/program-runtime/src/loaded_programs.rs b/program-runtime/src/loaded_programs.rs
index b1619766ec..f5c4483bd9 100644
--- a/program-runtime/src/loaded_programs.rs
+++ b/program-runtime/src/loaded_programs.rs
@@ -48,8 +48,10 @@ pub trait WorkingSlot {
     fn is_ancestor(&self, other: Slot) -> bool;
 }
 
+#[derive(Default)]
 pub enum LoadedProgramType {
     /// Tombstone for undeployed, closed or unloadable programs
+    #[default]
     Invalid,
     LegacyV0(VerifiedExecutable<RequisiteVerifier, InvokeContext<'static>>),
     LegacyV1(VerifiedExecutable<RequisiteVerifier, InvokeContext<'static>>),
@@ -68,12 +70,6 @@ impl Debug for LoadedProgramType {
     }
 }
 
-impl Default for LoadedProgramType {
-    fn default() -> Self {
-        LoadedProgramType::Invalid
-    }
-}
-
 #[derive(Debug, Default)]
 pub struct LoadedProgram {
     /// The program of this entry