Well, it looks like an issue with /run, which is set up differently in different distributions. Mine is just an ordinary directory, but some have links. I've no idea what godot/gradle are doing with it, unless it's a virtual directory in the aab?
Edit: One thing to note about /run and /var/run, is that they're frequently ram drives. Could you be running out of free memory during the build?
I think I had a similar problem recently, which I troubleshot by editing the gradle script and running a lot of the gradle steps from the command line. In the end it turned out to be a simple godot setting, but I can't remember the specifics, and I was making an apk.
Another thing you might try is exporting to a file in the same directory, since the export path seems to be involved. You could try all lower-case-alpha names too. It's hard to troubleshoot any of this without being able to duplicate the error.
