[update]
Crash is not related to Steam play/ proton configuration, happens on restart after login.
jb@2f15383c0bea:/$ /usr/games/steam
Running Steam on ubuntu 18.04 64-bit
STEAM_RUNTIME is enabled automatically
Pins up-to-date!
/home/jb/.steam/ubuntu12_32/steam
WARNING: setlocale('en_US.UTF-8') failed, using locale: 'C'. International characters may not work.
[2020-01-15 14:14:38] Startup - updater built Dec 16 2019 16:48:42
Looks like steam didn't shutdown cleanly, scheduling immediate update check
[2020-01-15 14:14:38] Checking for update on startup
[2020-01-15 14:14:38] Checking for available updates...
[2020-01-15 14:14:38] Downloading manifest: client-download.steampowered.com/client/steam_client_ubuntu12
[2020-01-15 14:14:38] Download skipped: /client/steam_client_ubuntu12 version 1576550254, installed version 1576550254
[2020-01-15 14:14:38] Nothing to do
[2020-01-15 14:14:38] Verifying installation...
[2020-01-15 14:14:38] Performing checksum verification of executable files
[2020-01-15 14:14:39] Verification complete
STEAM_RUNTIME_HEAVY: ./steam-runtime-heavy
assert_20200115141438_1.dmp[447]: Uploading dump (out-of-process)
/tmp/dumps/assert_20200115141438_1.dmp
assert_20200115141438_1.dmp[447]: Finished uploading minidump (out-of-process): success = yes
assert_20200115141438_1.dmp[447]: response: CrashID=bp-e720a2a7-c877-4ad2-8be1-100662200115
assert_20200115141438_1.dmp[447]: file ''/tmp/dumps/assert_20200115141438_1.dmp'', upload yes: ''CrashID=bp-e720a2a7-c877-4ad2-8be1-100662200115''
Hello @bucketsize, blind guess, does Steam in the docker environment have access to a running dbus daemon? Your issue reminds me of #3415.
Hello @bucketsize, are you still experiencing this issue on an up to date system?
Closing pending feedback.
Nothing extracted yet.
Your system information
Please describe your issue in as much detail as possible:
Describe what you expected should happen and what did happen. Please link any large code pastes as a Github Gist
Steps for reproducing this issue:
Docker file and launcher script:
https://gist.github.com/bucketsize/b80314df46336d46e374b8e5feb74d8c