Update to crossbeam-queue v0.3.11

Cargo.lock

@@ -44,12 +44,6 @@ version = "0.9.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "365861702868e2a37b4247aaecc7bd8f4389baec8d025497ad8ba7ff37ee9440"
 
-[[package]]
-name = "cfg-if"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
-
 [[package]]
 name = "conquer-once"
 version = "0.2.1"
@@ -67,24 +61,18 @@ checksum = "654fb2472cc369d311c547103a1fa81d467bef370ae7a0680f65939895b1182a"
 
 [[package]]
 name = "crossbeam-queue"
-version = "0.2.3"
+version = "0.3.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "774ba60a54c213d409d5353bda12d49cd68d14e45036a285234c8d6f91f92570"
+checksum = "df0346b5d5e76ac2fe4e327c5fd1118d6be7c51dfb18f9b7922923f287471e35"
 dependencies = [
- "cfg-if",
  "crossbeam-utils",
- "maybe-uninit",
 ]
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.7.2"
+version = "0.8.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
-dependencies = [
- "autocfg",
- "cfg-if",
-]
+checksum = "22ec99545bb0ed0ea7bb9b8e1e9122ea386ff8a48c0922e43f36d45ab09e0e80"
 
 [[package]]
 name = "futures-core"
@@ -138,12 +126,6 @@ dependencies = [
  "scopeguard",
 ]
 
-[[package]]
-name = "maybe-uninit"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
-
 [[package]]
 name = "pc-keyboard"
 version = "0.7.0"

Cargo.toml

@@ -27,7 +27,7 @@ version = "1.0"
 features = ["spin_no_std"]
 
 [dependencies.crossbeam-queue]
-version = "0.2.1"
+version = "0.3.11"
 default-features = false
 features = ["alloc"]
 

src/task/executor.rs

@@ -41,7 +41,7 @@ impl Executor {
             waker_cache,
         } = self;
 
-        while let Ok(task_id) = task_queue.pop() {
+        while let Some(task_id) = task_queue.pop() {
             let task = match tasks.get_mut(&task_id) {
                 Some(task) => task,
                 None => continue, // task no longer exists

src/task/keyboard.rs

@@ -51,17 +51,17 @@ impl Stream for ScancodeStream {
             .expect("scancode queue not initialized");
 
         // fast path
-        if let Ok(scancode) = queue.pop() {
+        if let Some(scancode) = queue.pop() {
             return Poll::Ready(Some(scancode));
         }
 
         WAKER.register(&cx.waker());
         match queue.pop() {
-            Ok(scancode) => {
+            Some(scancode) => {
                 WAKER.take();
                 Poll::Ready(Some(scancode))
             }
-            Err(crossbeam_queue::PopError) => Poll::Pending,
+            None => Poll::Pending,
         }
     }
 }