##### SUMMARY
`docker_container` should so some sanity checks that not two volumes / mount points use the same target inside the container, so that especially when recreating containers, they won't be destroyed first before recreating fails.

This becomes more important once #49808 is merged.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
docker_container

##### ANSIBLE VERSION
```
2.8.0
```

sample: '{
        "AppArmorProfile": "",
        "Args": [],
        "Config": {
            "AttachStderr": false,
            "AttachStdin": false,
            "AttachStdout": false,
            "Cmd": [
                "/usr/bin/supervisord"
            ],
            "Domainname": "",
            "Entrypoint": null,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "ExposedPorts": {
                "443/tcp": {},
                "80/tcp": {}
            },
            "Hostname": "8e47bf643eb9",
            "Image": "lnmp_nginx:v1",
            "Labels": {},
            "OnBuild": null,
            "OpenStdin": false,
            "StdinOnce": false,
            "Tty": false,
            "User": "",
            "Volumes": {
                "/tmp/lnmp/nginx-sites/logs/": {}
            },