diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000..484f2d5
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,14 @@
+kind: pipeline
+name: default
+
+steps:
+- name: build
+  image: rust
+  commands:
+    - cargo build --verbose --all
+
+- name: fmt-check
+  image: rust
+  commands:
+    - rustup component add rustfmt 
+    - cargo fmt --all -- --check
diff --git a/src/receiver.rs b/src/receiver.rs
index c2a2adb..68d0cc7 100644
--- a/src/receiver.rs
+++ b/src/receiver.rs
@@ -247,7 +247,8 @@ where
                         Event::Synchronized(_res) => self.context.synchronized.notify_waiters(),
                         Event::Response(mid, resp) => {
                             let prev_value = self.context.processing.fetch_sub(1, Ordering::SeqCst);
-                            if prev_value == 1  { // last task completes
+                            if prev_value == 1 {
+                                // last task completes
                                 self.context.idle.notify_waiters();
                             }
 
diff --git a/src/receivers/buffer_unordered_batched/mod.rs b/src/receivers/buffer_unordered_batched/mod.rs
index a45f7cf..881c22c 100644
--- a/src/receivers/buffer_unordered_batched/mod.rs
+++ b/src/receivers/buffer_unordered_batched/mod.rs
@@ -75,14 +75,8 @@ macro_rules! buffer_unordered_batch_poller_macro {
                             let buffer_clone = buffer.drain(..).collect();
 
                             #[allow(clippy::redundant_closure_call)]
-                            let _ = ($st1)(
-                                buffer_mid_clone,
-                                buffer_clone,
-                                bus,
-                                ut,
-                                task_permit,
-                                stx,
-                            );
+                            let _ =
+                                ($st1)(buffer_mid_clone, buffer_clone, bus, ut, task_permit, stx);
                         }
                     }
                     Request::Action(Action::Init(..)) => {
@@ -100,14 +94,8 @@ macro_rules! buffer_unordered_batch_poller_macro {
                             let task_permit = semaphore.clone().acquire_owned().await;
 
                             #[allow(clippy::redundant_closure_call)]
-                            let _ = ($st1)(
-                                buffer_mid_clone,
-                                buffer_clone,
-                                bus,
-                                ut,
-                                task_permit,
-                                stx,
-                            );
+                            let _ =
+                                ($st1)(buffer_mid_clone, buffer_clone, bus, ut, task_permit, stx);
                         }
 
                         let _ = semaphore.acquire_many(cfg.max_parallel as _).await;