Fix CI failure & update CI config

.github/workflows/ci.yml

@@ -1,20 +1,38 @@
 name: CI
 
+permissions:
+  contents: read
+
 on:
   pull_request:
   push:
     branches:
       - master
   schedule:
-    - cron: '0 2 * * *'
+    - cron: '0 2 * * 0'
 
 env:
-  RUSTFLAGS: -D warnings
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_GIT_FETCH_WITH_CLI: true
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
   RUST_BACKTRACE: 1
+  RUSTFLAGS: -D warnings
+  RUSTDOCFLAGS: -D warnings
+  RUSTUP_MAX_RETRIES: 10
+
+defaults:
+  run:
+    shell: bash
 
 jobs:
   fmt:
     uses: smol-rs/.github/.github/workflows/fmt.yml@main
+  clippy:
+    uses: smol-rs/.github/.github/workflows/clippy.yml@main
+    with:
+      # Windows for channel module.
+      additional-targets: x86_64-pc-windows-msvc
   security_audit:
     uses: smol-rs/.github/.github/workflows/security_audit.yml@main
     permissions:
@@ -34,10 +52,13 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup update ${{ matrix.rust }} && rustup default ${{ matrix.rust }}
+      - name: Install cargo-hack and cargo-minimal-versions
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-hack,cargo-minimal-versions
       - run: cargo build --all --all-features --all-targets
-      - name: Run cargo check (without dev-dependencies to catch missing feature flags)
-        if: startsWith(matrix.rust, 'nightly')
-        run: cargo check -Z features=dev_dep
+      - run: cargo hack build --feature-powerset --no-dev-deps
+      - run: cargo minimal-versions build --all --all-features
       - run: cargo test
         if: >
           !contains(matrix.os, 'windows')
@@ -55,11 +76,3 @@ jobs:
       - name: Install Rust
         run: rustup update ${{ matrix.rust }} && rustup default ${{ matrix.rust }}
       - run: cargo build
-
-  clippy:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install Rust
-        run: rustup update stable
-      - run: cargo clippy --all-features --all-targets

examples/print.rs

@@ -26,7 +26,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         signals
             .for_each(|signal| {
                 // Print the signal.
-                eprintln!("Received signal {:?}", signal);
+                eprintln!("Received signal {signal:?}");
 
                 // After printing it, do whatever the signal was supposed to do in the first place.
                 low_level::emulate_default_handler(signal.unwrap() as i32).unwrap();