Gitlab CI fails during npm install - docker

Question

Hello I have a exit code 1 error during npm install in my docker container, during the build of the gitlab continuous integration. I have a javascript web application in nodejs and angularjs hosted on gitlab, with two repositories : one for the front and one for the back. For the front, I use a base image including node 7.7.1 and nginx and his configuration, hosted on an Amazon registry, and then the runner executes the npm install for the front, according to the package.json.
Here is the .gitlab-ci.yml :
image: docker:1.13.1
stages:
- build
- test
- deploy
variables:
BUILD_IMG: $CI_REGISTRY_IMAGE:$CI_BUILD_REF
TEST_IMG: $CI_REGISTRY_IMAGE:$CI_BUILD_REF_NAME
RELEASE_IMG: $CI_REGISTRY_IMAGE:latest
AWS_STAGING_ENV: "argalisformation-prod-env"
AWS_PROD_ENV: "argalisformation-prod-env"
DOCKERRUN: Dockerrun.aws.json
DEPLOY_ARCHIVE: ${AWS_APP}-${CI_BUILD_REF}.zip
before_script:
- docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN registry.gitlab.com
- .ci/before_script
build:
stage: build
script:
- docker build --pull -t $BUILD_IMG .
- docker push $BUILD_IMG
test:
stage: test
script:
- docker pull $BUILD_IMG
- docker run --rm $BUILD_IMG npm run test
- docker tag $BUILD_IMG $TEST_IMG
- docker push $TEST_IMG
deploy:staging:
stage: deploy
environment: Staging
variables:
DOCKER_IMG: ${CI_REGISTRY_IMAGE}:${CI_BUILD_REF}
script:
- ./.ci/create-deploy-archive $DOCKER_IMG $AWS_BUCKET $DOCKERRUN $DEPLOY_ARCHIVE
- ./.ci/aws-deploy $DEPLOY_ARCHIVE $CI_BUILD_REF $AWS_STAGING_ENV
artifacts:
paths:
- $DEPLOY_ARCHIVE
except:
- production
deploy:production:
stage: deploy
environment: Production
variables:
DOCKER_IMG: ${CI_REGISTRY_IMAGE}:latest
script:
- .ci/push-new-image $TEST_IMG $RELEASE_IMG
- .ci/create-deploy-archive $DOCKER_IMG $AWS_BUCKET $DOCKERRUN $DEPLOY_ARCHIVE
- .ci/aws-deploy $DEPLOY_ARCHIVE $CI_BUILD_REF $AWS_PROD_ENV
artifacts:
paths:
- $DEPLOY_ARCHIVE
only:
- production
when: manual
Here is the output of the runner error :
npm info lifecycle node-sass#3.13.1~install: node-sass#3.13.1
> node-sass#3.13.1 install /src/node_modules/sasslint-webpack-plugin/node_modules/node-sass
> node scripts/install.js
The command '/bin/sh -c npm set progress=false && npm install node-sass --save-dev && npm install' returned a non-zero code: 1
ERROR: Job failed: exit status 1
My npm version is 4.1.2.