kaniko: build hanging at 'Unpacking rootfs as cmd RUN mkdir ... requires it'

Actual behavior

When using gcr.io/kaniko-project/executor:debug and
running /kaniko/executor --context $CI_PROJECT_DIR --dockerfile Dockerfile --destination ${CONTAINER_IMAGE} in gitlab runner build hangs.

Expected behavior

Build finishes successfully and image getting published to gcr

To Reproduce Steps to reproduce the behavior:

Dockerfile

FROM gcr.io/deeplearning-platform-release/tf2-cpu.2-1
RUN mkdir /tpu
COPY test.py /tpu/

.gitlab-ci.yml

stages:
  - publish

variables:
  CONTAINER_IMAGE: gcr.io/${GOOGLE_PROJECT_ID}/${CI_PROJECT_NAME}:${CI_COMMIT_SHORT_SHA}

publish:
  stage: publish
  image:
    name: gcr.io/kaniko-project/executor:debug
    entrypoint: [""]
  script:
    - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile Dockerfile --destination ${CONTAINER_IMAGE} --verbosity=debug
    
# Custom Functions -------------------------------------------------------
.custom_functions: &custom_functions |

  function config_kubernetes() {
    kubectl config set-cluster $KUBE_NAME --server="$KUBE_URL" --insecure-skip-tls-verify=true
    kubectl config set-credentials cluster-admin --username="$KUBE_USER" --password="$KUBE_PASSWORD"
    kubectl config set-context default --cluster=$KUBE_NAME --user=cluster-admin
    kubectl config use-context default
    echo $GOOGLE_SERVICE_JSON > ./gcloud-service-key.json
    kubectl create secret generic kaniko-secret --from-file=./gcloud-service-key.json
  }
  
before_script:
  - *custom_functions

Triage Notes for the Maintainers

Description	Yes/No
Please check if this a new feature you are proposing	- [ ]
Please check if the build works in docker but not in kaniko	- [ ]
Please check if this error is seen when you use --cache flag	- [ ]
Please check if your dockerfile is a multistage dockerfile	- [ ]