diff --git a/arbitrator/jit/src/syscall.rs b/arbitrator/jit/src/syscall.rs
index c81641a7f8..4f657eeefa 100644
--- a/arbitrator/jit/src/syscall.rs
+++ b/arbitrator/jit/src/syscall.rs
@@ -337,7 +337,7 @@ pub fn js_value_call(mut env: WasmEnvMut, sp: u32) -> MaybeEscape {
 
     let value = match (object, method_name.as_slice()) {
         (Ref(GO_ID), b"_makeFuncWrapper") => {
-            let arg = match args.get(0) {
+            let arg = match args.first() {
                 Some(arg) => arg,
                 None => fail!(
                     "Go trying to call Go._makeFuncWrapper with bad args {:?}",
@@ -415,7 +415,7 @@ pub fn js_value_call(mut env: WasmEnvMut, sp: u32) -> MaybeEscape {
         (Ref(CRYPTO_ID), b"getRandomValues") => {
             let name = "crypto.getRandomValues";
 
-            let id = match args.get(0) {
+            let id = match args.first() {
                 Some(Ref(x)) => x,
                 _ => fail!("Go trying to call {name} with bad args {:?}", args),
             };
@@ -456,7 +456,7 @@ pub fn js_value_new(mut env: WasmEnvMut, sp: u32) {
     let args_len = sp.read_u64(2);
     let args = sp.read_value_slice(args_ptr, args_len);
     match class {
-        UINT8_ARRAY_ID => match args.get(0) {
+        UINT8_ARRAY_ID => match args.first() {
             Some(JsValue::Number(size)) => {
                 let id = pool.insert(DynamicObject::Uint8Array(vec![0; *size as usize]));
                 sp.write_u64(4, GoValue::Object(id).encode());
diff --git a/arbitrator/wasm-libraries/go-stub/src/lib.rs b/arbitrator/wasm-libraries/go-stub/src/lib.rs
index df77893fcb..1a5d1963c7 100644
--- a/arbitrator/wasm-libraries/go-stub/src/lib.rs
+++ b/arbitrator/wasm-libraries/go-stub/src/lib.rs
@@ -218,7 +218,7 @@ pub unsafe extern "C" fn go__syscall_js_valueNew(sp: GoStack) {
     let args_len = sp.read_u64(2);
     let args = read_value_slice(args_ptr, args_len);
     if class == UINT8_ARRAY_ID {
-        if let Some(InterpValue::Number(size)) = args.get(0) {
+        if let Some(InterpValue::Number(size)) = args.first() {
             let id = DynamicObjectPool::singleton()
                 .insert(DynamicObject::Uint8Array(vec![0; *size as usize]));
             sp.write_u64(4, GoValue::Object(id).encode());
@@ -321,7 +321,7 @@ unsafe fn value_call_impl(sp: &mut GoStack) -> Result<GoValue, String> {
     let args_len = sp.read_u64(4);
     let args = read_value_slice(args_ptr, args_len);
     if object == InterpValue::Ref(GO_ID) && &method_name == b"_makeFuncWrapper" {
-        let id = args.get(0).ok_or_else(|| {
+        let id = args.first().ok_or_else(|| {
             format!(
                 "Go attempting to call Go._makeFuncWrapper with bad args {:?}",
                 args,
@@ -405,7 +405,7 @@ unsafe fn value_call_impl(sp: &mut GoStack) -> Result<GoValue, String> {
             ))
         }
     } else if object == InterpValue::Ref(CRYPTO_ID) && &method_name == b"getRandomValues" {
-        let id = match args.get(0) {
+        let id = match args.first() {
             Some(InterpValue::Ref(x)) => *x,
             _ => {
                 return Err(format!(