Inlines variables into format strings (#29945)

gossip/src/crds_gossip_pull.rs

@@ -897,7 +897,7 @@ pub(crate) mod tests {
         .take(100)
         .filter(|peer| peer != old)
         .count();
-        assert!(count < 75, "count of peer != old: {}", count);
+        assert!(count < 75, "count of peer != old: {count}");
     }
 
     #[test]

ledger-tool/src/output.rs

@@ -40,10 +40,10 @@ impl Display for SlotBounds<'_> {
                 )?;
 
                 if let Some(all_slots) = self.all_slots {
-                    writeln!(f, "Non-empty slots: {:?}", all_slots)?;
+                    writeln!(f, "Non-empty slots: {all_slots:?}")?;
                 }
             } else {
-                writeln!(f, "Ledger has data for slot {:?}", first)?;
+                writeln!(f, "Ledger has data for slot {first:?}")?;
             }
 
             if self.roots.total > 0 {
@@ -56,11 +56,7 @@ impl Display for SlotBounds<'_> {
                     self.roots.total, first_rooted, last_rooted
                 )?;
 
-                writeln!(
-                    f,
-                    "  and {:?} slots past the last root",
-                    num_after_last_root
-                )?;
+                writeln!(f, "  and {num_after_last_root:?} slots past the last root")?;
             } else {
                 writeln!(f, "  with no rooted slots")?;
             }

sdk/cargo-build-sbf/src/main.rs

@@ -160,8 +160,7 @@ fn find_installed_sbf_tools(arch: &str) -> Vec<String> {
 
 fn get_latest_sbf_tools_version() -> Result<String, String> {
     let url = "https://github.com/solana-labs/sbf-tools/releases/latest";
-    let resp =
-        reqwest::blocking::get(url).map_err(|err| format!("Failed to GET {}: {}", url, err))?;
+    let resp = reqwest::blocking::get(url).map_err(|err| format!("Failed to GET {url}: {err}"))?;
     let path = std::path::Path::new(resp.url().path());
     let version = path.file_name().unwrap().to_string_lossy().to_string();
     Ok(version)
@@ -173,7 +172,7 @@ fn normalize_version(version: String) -> String {
         |n: u32, c| if *c == b'.' { n.saturating_add(1) } else { n },
     );
     if dots == 1 {
-        format!("{}.0", version)
+        format!("{version}.0")
     } else {
         version
     }

validator/src/dashboard.rs

@@ -113,7 +113,7 @@ impl Dashboard {
                     println_name_value("JSON RPC URL:", &format!("http://{rpc}"));
                 }
                 if let Some(pubsub) = contact_info.pubsub {
-                    println_name_value("WebSocket PubSub URL:", &format!("ws://{}", pubsub));
+                    println_name_value("WebSocket PubSub URL:", &format!("ws://{pubsub}"));
                 }
             }