I am also seeing this issue on an install on Ubuntu. I do see this error with each crash:

./webui.sh: line 169: 4138 Killed "${python_cmd}" "${LAUNCH_SCRIPT}" "$@"

The number 4138 is different each time so I presume this is the pid.
It happens with both 1.4 and 1.5 models for me.

I think the torch version is a red herring, as it's no longer required to use a specific version.

Please try running with the --ckptfix flag, this will tell the extraction routine to use the CPU only.

xformers has disappeared.

./webui.sh --ckptfix
################################################################
Install script for stable-diffusion + Web UI
Tested on Debian 11 (Bullseye)
################################################################

################################################################
Running on iwoolf user
################################################################

################################################################
Repo already cloned, using it as install directory
################################################################

################################################################
Create and activate python venv
################################################################

################################################################
Launching launch.py...
################################################################
Python 3.10.6 (main, Nov 14 2022, 16:10:14) [GCC 11.3.0]
Commit hash: 44c46f0ed395967cd3830dd481a2db759fda5b3b
Installing requirements for Web UI

Installing requirements for scikit_learn

#######################################################################################################
Initializing Dreambooth
If submitting an issue on github, please provide the below text for debugging purposes:

Python revision: 3.10.6 (main, Nov 14 2022, 16:10:14) [GCC 11.3.0]
Dreambooth revision: 88cc50a
SD-WebUI revision: 44c46f0ed395967cd3830dd481a2db759fda5b3b

Checking Dreambooth requirements...
[+] bitsandbytes version 0.35.0 installed.
[!] diffusers[torch] version 0.11.0.dev0 installed.
[+] transformers version 4.21.0 installed.
[!] xformers NOT installed.
[ ] torch version 1.12.1+cu113 installed.
[ ] torchvision version 0.13.1+cu113 installed.
#######################################################################################################

Launching Web UI with arguments: --ckptfix

WARNING:
Need to compile C++ extensions to get sparse attention support. Please run python setup.py build develop
A matching Triton is not available, some optimizations will not be enabled.
Error caught was: No module named 'triton'
Dreambooth API layer loaded
LatentDiffusion: Running in eps-prediction mode
DiffusionWrapper has 859.52 M params.
Terminated

This issue is stale because it has been open 5 days with no activity. Remove stale label or comment or this will be closed in 5 days

The nvidia driver updated in the last system update, and now I can't log in!

I'd start from scratch, re-install xformers following the official Auto1111 instructions, and ensure you're on the latest version of the extension.

I have the same issue with linux mint 21 and the same gpu. I've used a clean install.
My steps are:

-conda create --name automatic python==3.10.6
-conda start automatic
-cd "/home/r2d2/anaconda3/envs/automatic/bin"
-pip install -r "/media/r2d2/4TB/stable-diffusion-webui"/requirements.txt
-pip install open_clip :
ERROR: Could not find a version that satisfies the requirement open_clip (from versions: none)
ERROR: No matching distribution found for open_clip

-pip install open-clip-torch
-pip install clip
-pip install gdown
-pip install xformers==0.0.16rc425

-cd SD dir
-python webui.py --xformers
-install dreambooth from extensions tab (checked if uptodate with git pull)
-give name, select 1.5 mode, select euler-ancestral
-press create model : killed

The log:
https://paste.ofcode.org/6uSCLp9k7JZz8XikKz2qb9