.lock file created but no permission

[gfelot]

I'm trying to run your DAG for maintenance and the first time I tried it i got in the log

Another task is already deleting logs on this worker node.     Skipping it!
If you believe you're receiving this message in error, kindly check     if /tmp/airflow_log_cleanup_worker.lock exists and delete it.

I RM the file then retry it and got :

Lock file not found on this node!     Creating it to prevent collisions...
Error creating the lock file.         Check if the airflow user can create files under tmp directory.         Exiting...

The 3rd I got once again the issue with the .lock file

I have given the right to my user airflow to the /tmp folder with sudo setfacl -m u:airflow:rwx /tmp. How can my user create the ,lock file but then not having the right to do it ?