concourse-docker: "failed to create volume", Concourse running in docker-compose on Linux

I’ve got Concourse running on a NixOS 18.03 VPS inside docker-compose, and this is working fine. I’m now trying to deploy exactly the same Concourse configuration to another NixOS 18.03 machine, but aren’t having any luck. I’m using the same docker-compose file, and the same pipelines.

The new machine gives errors about being unable to create volumes:

Apr 12 21:55:49 nyarlathotep docker-compose[26088]: concourse_1  | {"timestamp":"2019-04-12T20:55:49.753780802Z","level":"error","source":"atc","message":"atc.pipelines.radar.scan-resource.interval-runner.tick.find-or-create-cow-volume-for-container.failed-to-create-volume-in-baggageclaim","data":{"container":"af97f489-2d27-4007-57b4-e5cb9c43e659","error":"failed to create volume","pipeline":"ci","resource":"concoursefiles-git","session":"18.1.4.1.1.3","team":"main","volume":"e843e1a7-4122-494b-5397-d0a94294e418"}}
Apr 12 21:55:49 nyarlathotep docker-compose[26088]: concourse_1  | {"timestamp":"2019-04-12T20:55:49.793734883Z","level":"error","source":"atc","message":"atc.pipelines.radar.scan-resource.interval-runner.tick.failed-to-fetch-image-for-container","data":{"container":"af97f489-2d27-4007-57b4-e5cb9c43e659","error":"failed to create volume","pipeline":"ci","resource":"concoursefiles-git","session":"18.1.4.1.1","team":"main"}}
Apr 12 21:55:49 nyarlathotep docker-compose[26088]: concourse_1  | {"timestamp":"2019-04-12T20:55:49.794088237Z","level":"error","source":"atc","message":"atc.pipelines.radar.scan-resource.interval-runner.tick.failed-to-initialize-new-container","data":{"error":"failed to create volume","pipeline":"ci","resource":"concoursefiles-git","session":"18.1.4.1.1","team":"main"}}

The concoursefiles-git resource it’s failing to create a volume for there is a normal git resource. The other resources in the pipeline are failing with the same error.

The pipeline is here: https://github.com/barrucadu/concoursefiles/blob/master/pipelines/ci.yml

This is the docker-compose file:

version: '3'

services:
  concourse:
    image: concourse/concourse
    command: quickstart
    privileged: true
    depends_on: [postgres, registry]
    ports: ["3003:8080"]
    environment:
      CONCOURSE_POSTGRES_HOST: postgres
      CONCOURSE_POSTGRES_USER: concourse
      CONCOURSE_POSTGRES_PASSWORD: concourse
      CONCOURSE_POSTGRES_DATABASE: concourse
      CONCOURSE_EXTERNAL_URL: "https://ci.nyarlathotep.barrucadu.co.uk"
      CONCOURSE_MAIN_TEAM_GITHUB_USER: "barrucadu"
      CONCOURSE_GITHUB_CLIENT_ID: "<omitted>"
      CONCOURSE_GITHUB_CLIENT_SECRET: "<omitted>"
      CONCOURSE_LOG_LEVEL: error
      CONCOURSE_GARDEN_LOG_LEVEL: error
    networks:
      - ci

  postgres:
    image: postgres
    environment:
      POSTGRES_DB: concourse
      POSTGRES_PASSWORD: concourse
      POSTGRES_USER: concourse
      PGDATA: /database
    networks:
      - ci
    volumes:
      - pgdata:/database

  registry:
    image: registry
    networks:
      ci:
        ipv4_address: "172.21.0.254"
        aliases: [ci-registry]
    volumes:
      - regdata:/var/lib/registry

networks:
  ci:
    ipam:
      driver: default
      config:
        - subnet: 172.21.0.0/16

volumes:
  pgdata:
  regdata:

I’m using the latest concourse/concourse image, as I set this up today. The version of docker is 18.09.2 (build 62479626f213818ba5b4565105a05277308587d5). What can I look at to help debug this?