[RUST][CI] Add rust frontend tests in Jenkins (#2375)

Jenkinsfile

@@ -143,7 +143,6 @@ stage('Build') {
         timeout(time: max_time, unit: 'MINUTES') {
           sh "${docker_run} tvmai/ci-cpu ./tests/scripts/task_cpp_unittest.sh"
           sh "${docker_run} tvmai/ci-cpu ./tests/scripts/task_python_vta.sh"
-          sh "${docker_run} tvmai/ci-cpu ./tests/scripts/task_rust.sh"
           sh "${docker_run} tvmai/ci-cpu ./tests/scripts/task_golang.sh"
           sh "${docker_run} tvmai/ci-cpu ./tests/scripts/task_python_unittest.sh"
           sh "${docker_run} tvmai/ci-cpu ./tests/scripts/task_python_integration.sh"
@@ -209,6 +208,17 @@ stage('Unit Test') {
         }
       }
     }
+  },
+  'rust: CPU': {
+    node('CPU') {
+      ws('workspace/tvm/ut-rust') {
+        init_git()
+        unpack_lib('cpu', tvm_multilib)
+        timeout(time: max_time, unit: 'MINUTES') {
+          sh "${docker_run} tvmai/ci-cpu ./tests/scripts/task_rust.sh"
+        }
+      }
+    }
   }
 }