I had a situation where in an unprivileged LXC container I couldn't run the script update-webkitgtk-libs because flatpak was failing with this error:
bwrap: Can't mount proc on /newroot/proc: Operation not permitted
This was caused by Debian not setting brap as a setuid binary anymore <https://bugs.debian.org/977841> and my LXC unprivileged containers not allowing nesting
The issue here is that it this error was not printed when flatpak was failing, making debugging the issue harder.
I think se should print the stderr
Created attachment 447393 [details]
Committed r287162 (245338@main): <https://commits.webkit.org/245338@main>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 447393 [details].