diff --git a/wecare/benches/feldman-25519.rs b/wecare/benches/feldman-25519.rs
index 3d11d56..e51ddbe 100644
--- a/wecare/benches/feldman-25519.rs
+++ b/wecare/benches/feldman-25519.rs
@@ -40,6 +40,8 @@ pub fn build_feldman_engines() -> (blocking::Engine, blocking::Engine) {
     (e1, e2)
 }
 
+
+#[allow(unused)]
 fn criterion_benchmark(c: &mut Criterion) {
     let (mut e1, mut e2) = build_feldman_engines();
     let mut group = c.benchmark_group("feldman-25519");
diff --git a/wecare/benches/shamir-25519.rs b/wecare/benches/shamir-25519.rs
index 79364e2..9d85eca 100644
--- a/wecare/benches/shamir-25519.rs
+++ b/wecare/benches/shamir-25519.rs
@@ -40,6 +40,7 @@ pub fn build_shamir_engines() -> (blocking::Engine, blocking::Engine) {
     (e1, e2)
 }
 
+#[allow(unused)]
 fn criterion_benchmark(c: &mut Criterion) {
     let (mut e1, mut e2) = build_shamir_engines();
     let mut group = c.benchmark_group("shamir-25519");
diff --git a/wecare/benches/shamir-32.rs b/wecare/benches/shamir-32.rs
index 267a81c..ccf8392 100644
--- a/wecare/benches/shamir-32.rs
+++ b/wecare/benches/shamir-32.rs
@@ -40,6 +40,7 @@ pub fn build_shamir_engines() -> (blocking::Engine, blocking::Engine) {
     (e1, e2)
 }
 
+#[allow(unused)]
 fn criterion_benchmark(c: &mut Criterion) {
     let (mut e1, mut e2) = build_shamir_engines();
     let mut group = c.benchmark_group("shamir-32");
diff --git a/wecare/benches/spdz-25519.rs b/wecare/benches/spdz-25519.rs
index a2ace8e..d91a19b 100644
--- a/wecare/benches/spdz-25519.rs
+++ b/wecare/benches/spdz-25519.rs
@@ -61,6 +61,7 @@ pub fn build_spdz_engines() -> (blocking::Engine, blocking::Engine) {
     (e1, e2)
 }
 
+#[allow(unused)]
 fn criterion_benchmark(c: &mut Criterion) {
     let (mut e1, mut e2) = build_spdz_engines();
     let mut group = c.benchmark_group("spdz-25519");
diff --git a/wecare/benches/spdz-32.rs b/wecare/benches/spdz-32.rs
index 83e0c82..cf8b125 100644
--- a/wecare/benches/spdz-32.rs
+++ b/wecare/benches/spdz-32.rs
@@ -61,6 +61,7 @@ pub fn build_spdz_engines() -> (blocking::Engine, blocking::Engine) {
     (e1, e2)
 }
 
+#[allow(unused)]
 fn criterion_benchmark(c: &mut Criterion) {
     let (mut e1, mut e2) = build_spdz_engines();