##### SUMMARY

When using ansible with the podman connector (rootless container as user), I am not able to execute any commands.

##### ISSUE TYPE

- Bug Report

##### COMPONENT NAME

podman connector plugin

##### ANSIBLE VERSION
```
ansible 2.9.2
  config file = None
  configured module search path = ['/var/home/dschier/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /var/home/dschier/.venv-python3/lib64/python3.7/site-packages/ansible
  executable location = /var/home/dschier/.venv-python3/bin/ansible
  python version = 3.7.5 (default, Dec 15 2019, 17:54:26) [GCC 9.2.1 20190827 (Red Hat 9.2.1-1)]
```

##### CONFIGURATION

##### OS / ENVIRONMENT

- Fedora 31
- Podman 1.6.2
- Ansible 2.9.2 (via pip / virtualenv)

##### STEPS TO REPRODUCE

1. Start a container as user

```
podman run -d --rm --name instance fedora:31 sleep 300
```

2. Execute some ansible

```
ansible instance -c podman -m setup -i inventory
```

##### EXPECTED RESULTS

```
ansible gathers the facts
```

##### ACTUAL RESULTS

```
ansible 2.9.2
  config file = None
  configured module search path = ['/var/home/dschier/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /var/home/dschier/.venv-python3/lib64/python3.7/site-packages/ansible
  executable location = /var/home/dschier/.venv-python3/bin/ansible
  python version = 3.7.5 (default, Dec 15 2019, 17:54:26) [GCC 9.2.1 20190827 (Red Hat 9.2.1-1)]
No config file found; using defaults
setting up inventory plugins
host_list declined parsing /var/home/dschier/Projects/while-true-do/ansible-testing/inventory as it did not pass its verify_file() method
script declined parsing /var/home/dschier/Projects/while-true-do/ansible-testing/inventory as it did not pass its verify_file() method
auto declined parsing /var/home/dschier/Projects/while-true-do/ansible-testing/inventory as it did not pass its verify_file() method
Parsed /var/home/dschier/Projects/while-true-do/ansible-testing/inventory inventory source with ini plugin
Loading callback plugin minimal of type stdout, v2.0 from /var/home/dschier/.venv-python3/lib64/python3.7/site-packages/ansible/plugins/callback/minimal.py
META: ran handlers
<instance> RUN [b'podman', b'mount', b'instance']
Failed to mount container instance: b'Error: cannot mount using driver overlay in rootless mode'
<instance> RUN [b'podman', b'exec', b'instance', b'/bin/sh', b'-c', b'echo ~ && sleep 0']
<instance> RUN [b'podman', b'exec', b'instance', b'/bin/sh', b'-c', b'( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1578473717.9823112-75096948351551 `" && echo ansible-tmp-1578473717.9823112-75096948351551="` echo /root/.ansible/tmp/ansible-tmp-1578473717.9823112-75096948351551 `" ) && sleep 0']
<instance> Attempting python interpreter discovery
<instance> RUN [b'podman', b'exec', b'instance', b'/bin/sh', b'-c', b"echo PLATFORM; uname; echo FOUND; command -v '/usr/bin/python'; command -v 'python3.7'; command -v 'python3.6'; command -v 'python3.5'; command -v 'python2.7'; command -v 'python2.6'; command -v '/usr/libexec/platform-python'; command -v '/usr/bin/python3'; command -v 'python'; echo ENDFOUND && sleep 0"]
<instance> RUN [b'podman', b'exec', b'instance', b'/bin/sh', b'-c', b'/usr/bin/python3.7 && sleep 0']
[WARNING]: Unhandled error in Python interpreter discovery for host instance: Expecting value: line 1 column 1 (char 0)

Using module file /var/home/dschier/.venv-python3/lib64/python3.7/site-packages/ansible/modules/system/setup.py
<instance> PUT /var/home/dschier/.ansible/tmp/ansible-local-232076i4n4mlw/tmpmbdk1qd0 TO /root/.ansible/tmp/ansible-tmp-1578473717.9823112-75096948351551/AnsiballZ_setup.py
<instance> RUN [b'podman', b'cp', b'/var/home/dschier/.ansible/tmp/ansible-local-232076i4n4mlw/tmpmbdk1qd0', b'instance:/root/.ansible/tmp/ansible-tmp-1578473717.9823112-75096948351551/AnsiballZ_setup.py']
instance | FAILED! => {
    "msg": "Failed to copy file from /var/home/dschier/.ansible/tmp/ansible-local-232076i4n4mlw/tmpmbdk1qd0 to /root/.ansible/tmp/ansible-tmp-1578473717.9823112-75096948351551/AnsiballZ_setup.py in container instance\nb'Error: cannot copy into running rootless container with pause set - pass --pause=false to force copying\\n'"
}

```
""" run specified command in a running OCI container using podman """
        super(Connection, self).exec_command(cmd, in_data=in_data, sudoable=sudoable)
        
        cmd_args_list = shlex.split(to_native(cmd, errors='surrogate_or_strict'))
        if self.user:
            cmd_args_list += ["--user", self.user]
        rc, stdout, stderr = self._podman("exec", cmd_args_list, in_data)
        display.vvvvv("STDOUT %r STDERR %r" % (stderr, stderr))
        return rc, stdout, stderr
    def put_file(self, in_path, out_path):
        """ Place a local file located in 'in_path' inside container at 'out_path' """
        super(Connection, self).put_file(in_path, out_path)
        display.vvv("PUT %s TO %s" % (in_path, out_path), host=self._container_id)
        if not self._mount_point:
            rc, stdout, stderr = self._podman(
                "cp", [in_path, self._container_id + ":" + out_path], use_container_id=False)
            if rc != 0:
                raise AnsibleError("Failed to copy file from %s to %s in container %s\n%s" % (
                    in_path, out_path, self._container_id, stderr))
        else:
            real_out_path = self._mount_point + to_bytes(out_path, errors='surrogate_or_strict')
            shutil.copyfile(
                to_bytes(in_path, errors='surrogate_or_strict'),
                to_bytes(real_out_path, errors='surrogate_or_strict')
            )
    def fetch_file(self, in_path, out_path):