add build step and arm64 pipeline

.drone.yml

@@ -28,6 +28,53 @@ steps:
   commands:
   - cargo test
 
+- name: build
+  image: rust:buster
+  commands:
+  - cargo build
+
+trigger:
+  event:
+    include:
+    - push
+    - pull_request
+
+---
+kind: pipeline
+type: docker
+name: test-on-arm64
+
+platform:
+  arch: arm64 
+
+steps:
+- name: rustfmt
+  image: rust:buster
+  commands:
+  - rustup component add rustfmt
+  - cargo fmt --check
+
+- name: clippy
+  image: rust:buster
+  commands:
+  - rustup component add clippy
+  - cargo clippy -- -D warnings
+
+- name: check
+  image: rust:buster
+  commands:
+  - cargo check
+
+- name: test
+  image: rust:buster
+  commands:
+  - cargo test
+
+- name: build
+  image: rust:buster
+  commands:
+  - cargo build
+
 trigger:
   event:
     include: