Using Ansible builder created strange permissions

Hello,

after doing an “ansible-builder build --tag ansible-runner-dev:latest” container will start building. But some stuff which I put inside the “execution-environment.yml” can’t be installed, as for example the /tmp directory has strange permissions there:

-rw-r–r-- 1 501 20 94 Feb 19 2019 plugin.yaml
-rwx------ 1 root root 701 Mar 8 12:59 ks-script-sjkvb6c9
-rwx------ 1 root root 291 Mar 8 12:59 ks-script-igw1w8it
drwxr-xr-x 1 501 20 4096 Jun 20 00:11 .
dr-xr-xr-x 1 root root 4096 Jun 20 07:27 …

So what is UserID 501 and GroupID 20 in this case?
Base-Images which are used are the following:
quay.io/ansible/ansible-runner latest bec0dc171168 7 weeks ago 816 MB
quay.io/ansible/ansible-builder latest b0348faa7f41 4 months ago 779 MB

All this leads in my case in a
[3/3] STEP 17/20: RUN helm plugin install https://github.com/databus23/helm-diff
mktemp: failed to create directory via template ‘/tmp/helm-diff-XXXXXX’: Permission denied

Any idea?
Thanks.