message: [CircleCI] use 2xlarge+ for building
  Closes:
  Approved by: wqfish
diff: @@ -4,7 +4,7 @@ executors:
  build-executor:
  docker:
  - image: circleci/rust:buster
  - resource_class: 2xlarge
  + resource_class: 2xlarge+
  test-executor:
  docker:
  - image: circleci/rust:buster
  