[SOLVED] Dockerless install panicked threads

Help
1

Hi all,

I am trying to get the archlinux vaultwarden package installed inside of a LXC container. Since LXC and Docker use the same method of virtualization, Docker can not run in an unprivileged LXC.

I have been playing with this package and the /etc/vaultwarden.env file, but no matter how I try to start it it seems to exit violently with a panicked thread. The error I can extract from journalctl is as follows:

/--------------------------------------------------------------------\
|                        Starting Vaultwarden                        |
|                           Version 1.23.0                           |
|--------------------------------------------------------------------|
| This is an *unofficial* Bitwarden implementation, DO NOT use the   |
| official channels to report bugs/features, regardless of client.   |
| Send usage/configuration questions or feature requests to:         |
|   https://vaultwarden.discourse.group/                             |
| Report suspected bugs/issues in the software itself at:            |
|   https://github.com/dani-garcia/vaultwarden/issues/new            |
\--------------------------------------------------------------------/
[2021-11-29 19:49:02.077][start][INFO] Rocket has launched from http://0.0.0.0:8000
[2021-11-29 19:49:02.157][panic][ERROR] thread 'unnamed' panicked at 'failed to spawn thread: Os { code: 11, kind: WouldBlock, message: "Resource temporarily unavailable" }': /rustc/dfc5add915e8bf4accbb7cf4de00351a7c6126a1/library/std/src/thread/mod.rs:630
   0: <unknown>
   1: <unknown>
   2: <unknown>
   3: <unknown>
   4: <unknown>
   5: <unknown>
   6: <unknown>
   7: <unknown>
   8: <unknown>
   9: <unknown>
  10: <unknown>
  11: <unknown>
  12: <unknown>
  13: start_thread
  14: __GI___clone
[2021-11-29 19:49:02.157][panic][ERROR] thread 'main' panicked at 'internal error: entered unreachable code: the call to `handle_threads` should block on success': /build/.cargo/git/checkouts/rocket-8bf16d9ca7e90bdc/263e39b/core/lib/src/rocket.rs:751
   0: <unknown>
   1: <unknown>
   2: <unknown>
   3: <unknown>
   4: <unknown>
   5: <unknown>
   6: <unknown>
   7: <unknown>
   8: <unknown>
   9: <unknown>
  10: <unknown>
  11: <unknown>
  12: __libc_start_main
  13: <unknown>

The container runs on a Linux 5.10.82-1-lts kernel.

I have not been able to find any other posts regarding this error, and I am not well versed with rust at all and have no clue how to manually debug this problem.

2

You possibly hit this issue Setup as a systemd service · dani-garcia/vaultwarden Wiki · GitHub

3

Good shot, this error seems to indeed come from the LimitNPROC=64 setting in the systemctl unit. Stupid of me that I didn’t find it earlier, but maybe we’ll help someone else in the future with trying to find out the error :)