Gitci缓存阶段之间的依赖关系

我有下面的GitLab yml文件,我已经分阶段编写了它,假设每个阶段都会保留依赖关系,但似乎情况并非如此!

# This file is a template, and might need editing before it works on your project.
# Official Java image. Look for the different tagged releases at
# https://hub.docker.com/r/library/java/tags/ . A Java image is not required
# but an image with a JVM speeds up the build a bit.
image: java:8

variables:
  FILE_TARGET_PATH: $FILE_TARGET_PATH

stages:
  - test
  - run

cache:
  key: "$CI_BUILD_REF_NAME" # contains either the branch or the tag, so it's caching per branch
  untracked: true
  paths:
    - "sbt-cache/.ivy.cache"
    - "sbt-cache/.boot"
    - "sbt-cache/.sbtboot"
    - "sbt-cache/target"

before_script:
  # Enable the usage of sources over https
  - apt-get update -yqq
  - apt-get install apt-transport-https -yqq
  # Add keyserver for SBT
  - echo "deb http://dl.bintray.com/sbt/debian /" | tee -a /etc/apt/sources.list.d/sbt.list
  - apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2EE0EA64E40A89B84B2DF73499E82A75642AC823
  # Install SBT
  - apt-get update -yqq
  - apt-get install sbt -yqq

Run unit Tests:
  stage: test
  tags:
    - master
  script:
    # Execute your project's tests
    - sbt -Denv=test clean test

Run Pipeline:
  stage: run
  tags:
    - master
  script:
    # Execute the pipeline
    - sbt -Denv=test run

如何缓存此多级设置中的依赖项?我的机器上有一个本地的跑步者在运行管道。文物会帮助我吗?