Add flag to deny warnings in workflows

.github/workflows/codecov.yml

@@ -12,6 +12,7 @@ jobs:
     timeout-minutes: 10
     env:
       CARGO_TERM_COLOR: always
+      RUSTFLAGS: -D warnings
     steps:
       - uses: actions/checkout@v4
       - name: Install Rust

.github/workflows/publish.yml

@@ -11,11 +11,12 @@ jobs:
     timeout-minutes: 10
     env:
       CARGO_TERM_COLOR: always
+      RUSTFLAGS: -D warnings
     steps:
       - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup update stable
       - name: Publish to crates.io
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
-        run: cargo publish -p latches --all-features
+        run: cargo publish -p latches

.github/workflows/tests.yml

@@ -5,14 +5,27 @@ on: [ pull_request ]
 jobs:
   build:
     runs-on: ubuntu-latest
-    timeout-minutes: 10
+    timeout-minutes: 15
     env:
       CARGO_TERM_COLOR: always
+      RUSTFLAGS: -D warnings
     steps:
       - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup update stable
-      - name: Run tests with no-std
+      - name: Run tests for sync with atomic-wait
+        run: cargo test -p latches --no-default-features --features sync --features atomic-wait
+      - name: Run tests for sync with std
+        run: cargo test -p latches --no-default-features --features sync --features std
+      - name: Run tests for futex
+        run: cargo test -p latches --no-default-features --features futex
+      - name: Run tests for task with spins
+        run: cargo test -p latches --no-default-features --features task
+      - name: Run tests for task with atomic-wait
+        run: cargo test -p latches --no-default-features --features task --features atomic-wait
+      - name: Run tests for task with std
+        run: cargo test -p latches --no-default-features --features task --features std
+      - name: Run tests for all with atomic-wait
         run: cargo test -p latches --no-default-features --features task --features futex --features sync
       - name: Run tests with std
         run: cargo test -p no-std-tests -p latches --all-features

latches/src/lock/futexes.rs

@@ -3,13 +3,11 @@ use core::{
     cell::UnsafeCell,
     hint,
     ops::{Deref, DerefMut},
+    sync::atomic::Ordering::{Acquire, Release},
 };
 use core::{
     marker::PhantomData,
-    sync::atomic::{
-        AtomicU32,
-        Ordering::{Acquire, Relaxed, Release},
-    },
+    sync::atomic::{AtomicU32, Ordering::Relaxed},
 };
 
 /// An alternative to [`std::sync::Mutex`] for `no_std`.