Bitbucket Pipelines中React项目yarn build报exit code 137内存不足问题的解决方案咨询

我们的React应用是基于CRA脚本，通过Bitbucket Pipelines完成构建部署的，但最近大部分构建都在执行yarn build时失败，报错信息如下：

error Command failed with exit code 137.

我们确认这是内存不足导致的错误，已经尝试了两种方案但都没能解决问题：

• 设置GENERATE_SOURCEMAP=false作为部署环境变量，无效
• 在构建步骤中使用node --max-old-space-size=8192 scripts/build.js来提升Node的内存上限，也没有效果

现在这个问题完全卡住了我们的开发进度，我们不想轻易切换到其他CI/CD服务——毕竟迁移成本太高了。想问问大家还有没有其他可行的解决方案？

下面是我们当前的bitbucket-pipelines.yml配置：

image: node:14

definitions:
  steps:
    - step: &test
        name: Test
        script:
          - yarn
          - yarn test --detectOpenHandles --forceExit --changedSince $BITBUCKET_BRANCH
    - step: &build
        name: Build
        size: 2x
        script:
          - yarn
          - NODE_ENV=${BUILD_ENV} yarn build
        artifacts:
          - build/**
    - step: &deploy_s3
        name: Deploy to S3
        script:
          - pipe: atlassian/aws-s3-deploy:0.3.8
            variables:
              AWS_ACCESS_KEY_ID: $AWS_ACCESS_KEY_ID
              AWS_SECRET_ACCESS_KEY: $AWS_SECRET_ACCESS_KEY
              AWS_DEFAULT_REGION: $AWS_DEFAULT_REGION
              S3_BUCKET: $S3_BUCKET
              LOCAL_PATH: "./build/"
              ACL: 'public-read'
    - step: &auto_merge_down
        name: Auto Merge Down
        script:
          - ./autoMerge.sh stage || true
          - ./autoMerge.sh dev || true
  caches:
    jest: /tmp/jest_*
    node-dev: ./node_modules
    node-stage: ./node_modules
    node-release: ./node_modules
    node-prod: ./node_modules

pipelines:
  branches:
    dev:
      - parallel:
          fail-fast: true
          steps:
            - step:
                caches:
                  - node-dev
                  - jest
                <<: *test
            - step:
                caches:
                  - node-dev
                <<: *build
                deployment: Dev Env
      - step:
          <<: *deploy_s3
          deployment: Dev
    stage:
      - parallel:
          fail-fast: true
          steps:
            - step:
                caches:
                  - node-stage
                  - jest
                <<: *test
            - step:
                caches:
                  - node-stage
                <<: *build
                deployment: Staging Env
      - step:
          <<: *deploy_s3
          deployment: Staging
    prod:
      - parallel:
          fail-fast: true
          steps:
            - step:
                caches:
                  - node-prod
                  - jest
                <<: *test
            - step:
                caches:
                  - node-prod
                <<: *build
                deployment: Production Env
      - parallel:
          steps:
            - step:
                <<: *deploy_s3
                deployment: Production
            - step:
                <<: *auto_merge_down

备注：内容来源于stack exchange，提问作者Drew Gallagher