Fix the azure pipeline

azure-pipelines.yml

@@ -7,6 +7,8 @@ stages:
           vmImage: 'ubuntu-16.04'
         container: 'rust:latest'
         steps:
+          - script: rustup component add clippy rustfmt
+            displayName: Install clippy and rustfmt
           - script: cargo fmt -- --check
             displayName: Check Formatting
           - script: cargo check --all