diff --git a/crates/analyzer/src/traversal/expressions.rs b/crates/analyzer/src/traversal/expressions.rs
index d1e9e49f03..d5edbae6cc 100644
--- a/crates/analyzer/src/traversal/expressions.rs
+++ b/crates/analyzer/src/traversal/expressions.rs
@@ -1381,7 +1381,7 @@ fn expr_call_pure(
 
     if function.is_test(context.db()) {
         context.fancy_error(
-            &format!("`{}` is a test function", fn_name),
+            &format!("`{fn_name}` is a test function"),
             vec![Label::primary(call_span, "test functions are not callable")],
             vec![],
         );
diff --git a/crates/fe/src/task/test.rs b/crates/fe/src/task/test.rs
index 0342321133..d35ac88d38 100644
--- a/crates/fe/src/task/test.rs
+++ b/crates/fe/src/task/test.rs
@@ -26,7 +26,7 @@ pub fn test(args: TestArgs) {
         test_ingot(&args)
     };
 
-    println!("{}", test_sink);
+    println!("{test_sink}");
     if test_sink.failure_count() != 0 {
         std::process::exit(1)
     }
@@ -38,7 +38,7 @@ fn test_single_file(args: &TestArgs) -> TestSink {
     let mut db = fe_driver::Db::default();
     let content = match std::fs::read_to_string(input_path) {
         Err(err) => {
-            eprintln!("Failed to load file: `{}`. Error: {}", input_path, err);
+            eprintln!("Failed to load file: `{input_path}`. Error: {err}");
             std::process::exit(1)
         }
         Ok(content) => content,
@@ -51,7 +51,7 @@ fn test_single_file(args: &TestArgs) -> TestSink {
             sink
         }
         Err(error) => {
-            eprintln!("Unable to compile {}.", input_path);
+            eprintln!("Unable to compile {input_path}.");
             print_diagnostics(&db, &error.0);
             std::process::exit(1)
         }
@@ -60,7 +60,7 @@ fn test_single_file(args: &TestArgs) -> TestSink {
 
 pub fn execute_tests(module_name: &str, tests: &[CompiledTest], sink: &mut TestSink) {
     if tests.len() == 1 {
-        println!("executing 1 test in {}:", module_name);
+        println!("executing 1 test in {module_name}:");
     } else {
         println!("executing {} tests in {}:", tests.len(), module_name);
     }
@@ -83,18 +83,18 @@ fn test_ingot(args: &TestArgs) -> TestSink {
     let optimize = args.optimize.unwrap_or(true);
 
     if !Path::new(input_path).exists() {
-        eprintln!("Input directory does not exist: `{}`.", input_path);
+        eprintln!("Input directory does not exist: `{input_path}`.");
         std::process::exit(1)
     }
 
     let content = match load_files_from_dir(input_path) {
         Ok(files) if files.is_empty() => {
-            eprintln!("Input directory is not an ingot: `{}`", input_path);
+            eprintln!("Input directory is not an ingot: `{input_path}`");
             std::process::exit(1)
         }
         Ok(files) => files,
         Err(err) => {
-            eprintln!("Failed to load project files. Error: {}", err);
+            eprintln!("Failed to load project files. Error: {err}");
             std::process::exit(1)
         }
     };
@@ -110,7 +110,7 @@ fn test_ingot(args: &TestArgs) -> TestSink {
             sink
         }
         Err(error) => {
-            eprintln!("Unable to compile {}.", input_path);
+            eprintln!("Unable to compile {input_path}.");
             print_diagnostics(&db, &error.0);
             std::process::exit(1)
         }
diff --git a/crates/test-runner/src/lib.rs b/crates/test-runner/src/lib.rs
index ed6a8661f5..c7d423d048 100644
--- a/crates/test-runner/src/lib.rs
+++ b/crates/test-runner/src/lib.rs
@@ -48,9 +48,9 @@ impl Display for TestSink {
 
         let test_description = |n: usize, status: &dyn Display| -> String {
             if n == 1 {
-                format!("1 test {}", status)
+                format!("1 test {status}")
             } else {
-                format!("{} tests {}", n, status)
+                format!("{n} tests {status}")
             }
         };
 
@@ -85,7 +85,7 @@ pub fn execute(name: &str, bytecode: &str, sink: &mut TestSink) -> bool {
     if reverted {
         sink.inc_success_count();
     } else {
-        sink.insert_failure(name, &format!("{:?}", result));
+        sink.insert_failure(name, &format!("{result:?}"));
     };
 
     reverted