diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 31247dc..b6fedc9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,5 +24,7 @@ jobs:
         run: make build-wasm-pkg
       - name: Build lib
         run: make build-grpc-pkg
+      - name: Build core
+        run: make build-core-pkg
       - name: Run tests
         run: cargo test --verbose --workspace
diff --git a/ain-core/build.rs b/ain-core/build.rs
index 23c5bd1..675a855 100644
--- a/ain-core/build.rs
+++ b/ain-core/build.rs
@@ -13,7 +13,10 @@ fn main() {
     let target_dir = &root.join("target");
 
     let mut content = String::new();
-    File::open(lib_path).unwrap().read_to_string(&mut content).unwrap();
+    File::open(lib_path)
+        .unwrap()
+        .read_to_string(&mut content)
+        .unwrap();
     let tt: TokenStream = content.parse().unwrap();
     let codegen = cxx_gen::generate_header_and_cc(tt, &cxx_gen::Opt::default()).unwrap();
 
diff --git a/ain-core/src/lib.rs b/ain-core/src/lib.rs
index 669b5b2..19fbb96 100644
--- a/ain-core/src/lib.rs
+++ b/ain-core/src/lib.rs
@@ -15,7 +15,11 @@ mod calc {
 
         fn calc_dex_fee(algo_dusd: f64, dusd_supply: f64) -> f64;
 
-        fn calc_loan_interest_rate(reserve_dfi: f64, reserve_dusd: f64, dfi_oracle_price: f64) -> f64;
+        fn calc_loan_interest_rate(
+            reserve_dfi: f64,
+            reserve_dusd: f64,
+            dfi_oracle_price: f64,
+        ) -> f64;
     }
 }
 
diff --git a/ain-grpc/src/codegen.rs b/ain-grpc/src/codegen.rs
index 2fd6a0e..46ed3f6 100644
--- a/ain-grpc/src/codegen.rs
+++ b/ain-grpc/src/codegen.rs
@@ -4,6 +4,7 @@ pub mod types {
     tonic::include_proto!("types");
 }
 
+#[allow(clippy::useless_conversion)]
 pub mod rpc {
     tonic::include_proto!("rpc");
 }
@@ -13,7 +14,7 @@ impl Serialize for types::BlockResult {
     where
         S: serde::Serializer,
     {
-        if self.hash != "" {
+        if self.hash.is_empty() {
             return serializer.serialize_str(&self.hash);
         }
 
@@ -30,7 +31,7 @@ impl Serialize for types::Transaction {
     where
         S: serde::Serializer,
     {
-        if self.hash != "" {
+        if self.hash.is_empty() {
             return serializer.serialize_str(&self.hash);
         }
 
diff --git a/ain-grpc/src/lib.rs b/ain-grpc/src/lib.rs
index 78ccc65..0a9449a 100644
--- a/ain-grpc/src/lib.rs
+++ b/ain-grpc/src/lib.rs
@@ -120,6 +120,7 @@ fn start_servers(
     Ok(runtime)
 }
 
+#[allow(clippy::boxed_local)]
 fn stop_servers(mut runtime: Box<Runtime>) -> Result<(), Box<dyn Error>> {
     log::info!("Stopping gRPC and JSON RPC servers");
     runtime.stop();