How do I debug Bitbucket Pipeline localy with service: docker enabled?

[Jakob Oelkers]

Logging in to my docker registry from the pipeline started to fail recently with an timeout.

I'd like to debug this issue locally but do not know how to include the docker service in my docker image.

Relevant part of my bitbucket pipelines i want to debug:

image: python:3.6.2
definitions: 
 steps: 
  - step: &branchBuild 
   name: Building Image 
   caches: - docker 
   script: 
    - echo $DOCKER_KEY | docker login -u pipeline --password-stdin XXXX 
    - docker build --no-cache -t docker-XXXX/monitor:$BITBUCKET_BRANCH . 
    - docker push docker-XXXX/monitor:$BITBUCKET_BRANCH 
   services: 
    - docker

 The error I get:

Error response from daemon: Get https://xxx/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)