chore: sync changes with nomos-node (#57)

Author: ntn-x2

.github/workflows/code-check.yml

@@ -43,6 +43,46 @@ jobs:
           arguments:
           command-arguments: "--hide-inclusion-graph -c .cargo-deny.toml --show-stats -D warnings"
 
+  features:
+    name: Check packages feature combinations
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Install cargo-hack
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-hack
+      - name: Set up Cargo cache
+        uses: ./.github/actions/setup-cargo-cache
+        with:
+          key: ${{ github.ref }}->${{ github.workflow }}->${{ github.job }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Run cargo-hack
+        env:
+          RISC0_SKIP_BUILD: true
+          RUSTFLAGS: -D warnings
+        run: cargo hack --feature-powerset --no-dev-deps check
+      - name: Update Cargo cache
+        if: success() || failure()
+        uses: ./.github/actions/update-cargo-cache
+        with:
+          key: ${{ github.ref }}->${{ github.workflow }}->${{ github.job }}
+
+  unused-deps:
+    name: Check for unused dependencies
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Install cargo-machete
+        uses: bnjbvr/[email protected]
+        # This step also runs `cargo-machete` without the `--with-metadata` flag, which can trigger more false positives.
+        # We ignore errors and run `cargo-machete` with the `--with-metadata` flag for the actual result.
+        continue-on-error: true
+      - name: Run cargo-machete
+        run: cargo machete --with-metadata
+
   lints:
     name: Check Rust lints
     runs-on: ubuntu-latest

examples/ping_pong/Cargo.toml

@@ -13,9 +13,15 @@ async-trait      = "0.1.83"
 const_format     = "0.2.34"
 overwatch        = { workspace = true }
 overwatch-derive = { workspace = true }
-project-root     = "0.2.2"
 serde            = { version = "1.0.216", features = ["derive"] }
 serde_json       = "1.0.134"
 thiserror        = "2.0.8"
 tokio            = { version = "1.42.0", features = ["macros"] }
 tracing          = "0.1.41"
+
+[package.metadata.cargo-machete]
+# False positives.
+ignored = [
+    # Required by Overwatch's `#[derive(Services)]` macro.
+    "tracing",
+]