diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 3bc81be..14d7716 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -19,6 +19,6 @@ jobs:
           components: clippy, rustfmt
       - uses: Swatinem/rust-cache@v2
       - name: Check clippy
-        run: cargo clippy --workspace -- -D warnings
+        run: cargo clippy --all-features --workspace -- -D warnings
       - name: Check rustfmt
         run: cargo fmt --all -- --check
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index fc083a8..db63db5 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -47,4 +47,4 @@ jobs:
 
       - name: Run test
         run: |
-          cargo llvm-cov nextest --no-tests pass --target ${{ matrix.target }}
+          cargo llvm-cov nextest --all-features --no-tests pass --target ${{ matrix.target }}
diff --git a/Cargo.toml b/Cargo.toml
index cb28f7f..889bec3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,4 +24,4 @@ rand = "0.10.1"
 rstest = "0.26.1"
 
 [features]
-serde = ["dep:serde"]
+serde = ["dep:serde", "byte-unit/serde"]
diff --git a/src/metrics.rs b/src/metrics.rs
index 2d7b927..ce4b7a0 100644
--- a/src/metrics.rs
+++ b/src/metrics.rs
@@ -2,7 +2,7 @@ use std::time::Duration;
 
 use byte_unit::Byte;
 
-#[derive(Debug, PartialEq, Eq)]
+#[derive(Debug, PartialEq, Eq, Clone, Copy)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 pub enum Verdict {
     Accepted,
@@ -14,7 +14,7 @@ pub enum Verdict {
     IdleTimeLimitExceeded,
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize))]
 pub struct Metrics {
     pub verdict: Verdict,