Fix build warning, fail CI if build has warnings

.github/workflows/ci.yml

@@ -51,7 +51,7 @@ jobs:
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Build
-        run: cargo build --all --verbose
+        run: cargo build --all --verbose --features strict
       - name: Tests
         run: cargo test --all --verbose
 

Cargo.toml

@@ -16,6 +16,7 @@ rust-version = "1.78.0"
 
 [features]
 std = []
+strict = []  # For CI builds, fails on warnings
 
 [dependencies]
 can-dbc = "6.0.0"

src/lib.rs

@@ -24,6 +24,7 @@
 //! ```
 
 #![deny(missing_docs)]
+#![cfg_attr(feature = "strict", deny(warnings))]
 #![deny(clippy::arithmetic_side_effects)]
 
 use anyhow::{anyhow, ensure, Context, Result};