Cannot copy resulting rpm to data directory

[sasilen]

When performing docker magic with centos 7
command
docker run --rm -v ${PWD}:/data pamoauth2device-rpm-build cp -r 'rpmbuild/RPMS /data'
I had to execute via
docker run --rm -v ${PWD}:/data pamoauth2device-rpm-build cp -r rpmbuild/RPMS /data

But still there was an problem that /data was mounted with ownership that doesn't allow builder user to copy anything there (permission denied).