Duplicati Docker Mod issue

version: '3'
services:

    duplicati:
        image: linuxserver/duplicati:latest #v2.0.5.1-2.0.5.1_beta_2020-01-18-ls80 as of 03 NOV 2020

        container_name: duplicati-test
        security_opt:
        - no-new-privileges:true
        environment:
        - PUID=$PGID
        - PGID=$PUID
        - TZ=$TZ
        - DOCKER_MODS=linuxserver/mods:code-server-docker
        volumes:
        - /var/run/docker.sock:/var/run/docker.sock
        ports:
        - 8205:8200
        restart: unless-stopped

--------------------------------

/duplicati-test$ docker-compose up
Creating duplicati-test ... done
Attaching to duplicati-test
duplicati-test | [mod-init] Attempting to run Docker Modification Logic
duplicati-test | [mod-init] Applying linuxserver/mods:code-server-docker files to container
duplicati-test |
duplicati-test | gzip: stdin: not in gzip format
duplicati-test | tar: Child returned status 1
duplicati-test | tar: Error is not recoverable: exiting now
duplicati-test | [s6-init] making user provided files available at /var/run/s6/etc...exited 0.
duplicati-test | [s6-init] ensuring user provided files have correct perms...exited 0.
duplicati-test | [fix-attrs.d] applying ownership & permissions fixes...
duplicati-test | [fix-attrs.d] done.
duplicati-test | [cont-init.d] executing container initialization scripts...
duplicati-test | [cont-init.d] 01-envfile: executing...
duplicati-test | [cont-init.d] 01-envfile: exited 0.
duplicati-test | [cont-init.d] 10-adduser: executing...
duplicati-test |
duplicati-test | -------------------------------------
duplicati-test |           _         ()
duplicati-test |          | |  ___   _    __
duplicati-test |          | | / __| | |  /  \
duplicati-test |          | | \__ \ | | | () |
duplicati-test |          |_| |___/ |_|  \__/
duplicati-test |
duplicati-test |
duplicati-test | Brought to you by linuxserver.io
duplicati-test | -------------------------------------
duplicati-test |
duplicati-test | To support LSIO projects visit:
duplicati-test | https://www.linuxserver.io/donate/
duplicati-test | -------------------------------------
duplicati-test | GID/UID
duplicati-test | -------------------------------------
duplicati-test |
duplicati-test | User uid:    1000
duplicati-test | User gid:    1000
duplicati-test | -------------------------------------
duplicati-test |
duplicati-test | [cont-init.d] 10-adduser: exited 0.
duplicati-test | [cont-init.d] 30-config: executing...
duplicati-test | [cont-init.d] 30-config: exited 0.
duplicati-test | [cont-init.d] 99-custom-scripts: executing...
duplicati-test | [custom-init] no custom files found exiting...
duplicati-test | [cont-init.d] 99-custom-scripts: exited 0.
duplicati-test | [cont-init.d] done.
duplicati-test | [services.d] starting services
duplicati-test | [services.d] done.


--------------------------------
$ docker exec -it -u abc duplicati-test /bin/bash
abc@38afbc51f231:/$ id -u
1000
abc@38afbc51f231:/$ id -g
1000
abc@38afbc51f231:/$ docker
bash: docker: command not found