chore: Update to Rust 1.50.0 (#9479)

.github/workflows/ci.yml

@@ -65,7 +65,7 @@ jobs:
       - name: Install rust
         uses: hecrj/setup-rust-action@v1
         with:
-          rust-version: 1.49.0
+          rust-version: 1.50.0
 
       - name: Install clippy and rustfmt
         if: matrix.kind == 'lint'

cli/bench/main.rs

@@ -297,9 +297,9 @@ fn run_throughput(deno_exe: &PathBuf) -> Result<HashMap<String, f64>> {
   let mut m = HashMap::<String, f64>::new();
 
   m.insert("100M_tcp".to_string(), throughput::tcp(deno_exe, 100)?);
-  m.insert("100M_cat".to_string(), throughput::cat(deno_exe, 100)?);
+  m.insert("100M_cat".to_string(), throughput::cat(deno_exe, 100));
   m.insert("10M_tcp".to_string(), throughput::tcp(deno_exe, 10)?);
-  m.insert("10M_cat".to_string(), throughput::cat(deno_exe, 10)?);
+  m.insert("10M_cat".to_string(), throughput::cat(deno_exe, 10));
 
   Ok(m)
 }

cli/bench/throughput.rs

@@ -11,7 +11,7 @@ const MB: usize = 1024 * 1024;
 const SERVER_ADDR: &str = "0.0.0.0:4544";
 const CLIENT_ADDR: &str = "127.0.0.1 4544";
 
-pub(crate) fn cat(deno_exe: &PathBuf, megs: usize) -> Result<f64> {
+pub(crate) fn cat(deno_exe: &PathBuf, megs: usize) -> f64 {
   let size = megs * MB;
   let shell_cmd = format!(
     "{} run --allow-read cli/tests/cat.ts /dev/zero | head -c {}",
@@ -25,7 +25,7 @@ pub(crate) fn cat(deno_exe: &PathBuf, megs: usize) -> Result<f64> {
   let _ = test_util::run_collect(cmd, None, None, None, true);
   let end = Instant::now();
 
-  Ok((end - start).as_secs_f64())
+  (end - start).as_secs_f64()
 }
 
 pub(crate) fn tcp(deno_exe: &PathBuf, megs: usize) -> Result<f64> {

cli/lsp/language_server.rs

@@ -1685,7 +1685,7 @@ impl Inner {
         Some(Err(err)) => Err(LspError::invalid_params(err.to_string())),
         None => Err(LspError::invalid_params("Missing parameters")),
       },
-      "deno/performance" => self.get_performance(),
+      "deno/performance" => Ok(Some(self.get_performance())),
       "deno/virtualTextDocument" => match params.map(serde_json::from_value) {
         Some(Ok(params)) => Ok(Some(
           serde_json::to_value(self.virtual_text_document(params).await?)
@@ -1902,9 +1902,9 @@ impl Inner {
     Ok(true)
   }
 
-  fn get_performance(&self) -> LspResult<Option<Value>> {
+  fn get_performance(&self) -> Value {
     let averages = self.performance.averages();
-    Ok(Some(json!({ "averages": averages })))
+    json!({ "averages": averages })
   }
 
   async fn virtual_text_document(

cli/lsp/tsc.rs

@@ -1175,6 +1175,7 @@ fn respond(state: &mut State, args: Value) -> Result<Value, AnyError> {
   Ok(json!(true))
 }
 
+#[allow(clippy::unnecessary_wraps)]
 fn script_names(state: &mut State, _args: Value) -> Result<Value, AnyError> {
   Ok(json!(state.state_snapshot.documents.open_specifiers()))
 }

runtime/ops/runtime.rs

@@ -36,6 +36,7 @@ fn op_main_module(
   Ok(json!(&main))
 }
 
+#[allow(clippy::unnecessary_wraps)]
 fn op_metrics(
   state: &mut OpState,
   _args: Value,

runtime/ops/timers.rs

@@ -85,6 +85,7 @@ pub fn init(rt: &mut deno_core::JsRuntime) {
   super::reg_json_sync(rt, "op_sleep_sync", op_sleep_sync);
 }
 
+#[allow(clippy::unnecessary_wraps)]
 fn op_global_timer_stop(
   state: &mut OpState,
   _args: Value,