output from running steam

Running Steam on arch rolling 64-bit
STEAM_RUNTIME is enabled automatically
Pins up-to-date!
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)

** (steam:16339): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: The name org.freedesktop.NetworkManager was not provided by any .service files
Setting breakpad minidump AppID = 769
Steam_SetMinidumpSteamID:  Caching Steam ID:  76561197960265728 [API loaded no]
!! Steam controller device opened for index 0.
Steam Controller reserving XInput slot 0
Controller 0 connected, configuring it now...
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
!! Controller 0 attributes:
  Type: 31
  ProductID: 49693
  Serial: Awaiting_Logon
  Capabilities: 00000003
  Firmware Version: 0
  Firmware Build Time: 2147483647 (Tue, 19 Jan 2038 03:14:07 GMT)
  Bootloader Build Time: 2147483647 (Tue, 19 Jan 2038 03:14:07 GMT)
Setting VR Path Registry runtime path to /home/hcs/.local/share/Steam/SteamApps/common/SteamVR
vr/vrmanager.cpp (190) : Assertion Failed: BFileExists( /home/hcs/.local/share/Steam/SteamApps/common/SteamVR/bin/linux64/vrpathreg ) failed
Assert( Assertion Failed: BFileExists( /home/hcs/.local/share/Steam/SteamApps/common/SteamVR/bin/linux64/vrpathreg ) failed ):vr/vrmanager.cpp:190

Installing breakpad exception handler for appid(steam)/version(1501028709)
crash_20170725235418_20.dmp[16412]: Uploading dump (out-of-process)
/tmp/dumps/crash_20170725235418_20.dmp
Setting VR Path Registry config path to /home/hcs/.local/share/Steam/config
vr/vrmanager.cpp (190) : Assertion Failed: BFileExists( /home/hcs/.local/share/Steam/SteamApps/common/SteamVR/bin/linux64/vrpathreg ) failed
Setting VR Path Registry log path to /home/hcs/.local/share/Steam/logs
vr/vrmanager.cpp (190) : Assertion Failed: BFileExists( /home/hcs/.local/share/Steam/SteamApps/common/SteamVR/bin/linux64/vrpathreg ) failed
Loaded Config for Local Override Path for App ID 413080: /home/hcs/.local/share/Steam//controller_base/empty.vdf
Controller 0 mapping uses xinput : false
crash_20170725235418_20.dmp[16412]: Finished uploading minidump (out-of-process): success = yes
crash_20170725235418_20.dmp[16412]: response: CrashID=bp-1a51d58e-ca84-4e69-aeba-8da462170725
crash_20170725235418_20.dmp[16412]: file ''/tmp/dumps/crash_20170725235418_20.dmp'', upload yes: ''CrashID=bp-1a51d58e-ca84-4e69-aeba-8da462170725''
Generating new string page texture 2: 48x256, total string texture memory is 49.15 KB
Generating new string page texture 3: 384x256, total string texture memory is 442.37 KB
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Installing breakpad exception handler for appid(steam)/version(1501028709)
Controller 0 connected, configuring it now...
Controller 0 disconnected
local (potentially out of sync) copy of roaming config loaded - 1677 bytes.
Controller has an Invalid or missing unit serial number, setting to '46d-c21d-5333451'
!! Controller 0 attributes:
  Type: 31
  ProductID: 49693
  Serial: 46d-c21d-5333451
  Capabilities: 00000003
  Firmware Version: 0
  Firmware Build Time: 2147483647 (Tue, 19 Jan 2038 03:14:07 GMT)
  Bootloader Build Time: 2147483647 (Tue, 19 Jan 2038 03:14:07 GMT)
Opted-in Controller Mask: 0
Loaded Config for Local Override Path for App ID 413080: /home/hcs/.local/share/Steam//controller_base/empty.vdf
[413080]Non-Steam Controller Configs Enabled: 1
roaming config store loaded successfully - 1677 bytes.
migrating temporary roaming config store
Unable to read VR Path Registry from /home/hcs/.config/openvr/openvrpaths.vrpath
process 16339: arguments to dbus_connection_ref() were incorrect, assertion "connection->generation == _dbus_current_generation" failed in file dbus-connection.c line 2686.
This is normally a bug in some application using the D-Bus library.
  D-Bus not built with -rdynamic so unable to print a backtrace
[2017-07-25 23:54:16] Startup - updater built Jul 25 2017 23:32:53
[2017-07-25 23:54:16] Opted in to client beta 'publicbeta' via beta file
You are in the 'publicbeta' client beta.
Looks like steam didn't shutdown cleanly, scheduling immediate update check
[2017-07-25 23:54:16] Checking for update on startup
[2017-07-25 23:54:16] Checking for available updates...
[2017-07-25 23:54:16] Download skipped by HTTP 304 Not Modified
[2017-07-25 23:54:16] Nothing to do
[2017-07-25 23:54:16] Verifying installation...
[2017-07-25 23:54:16] Performing checksum verification of executable files
[2017-07-25 23:54:17] Verification complete
assert_20170725235416_1.dmp[16428]: Uploading dump (out-of-process)
/tmp/dumps/assert_20170725235416_1.dmp
/home/hcs/.local/share/Steam/steam.sh: line 940: 16339 Aborted                 (core dumped) $STEAM_DEBUGGER "$STEAMROOT/$STEAMEXEPATH" "$@"
assert_20170725235416_1.dmp[16428]: Finished uploading minidump (out-of-process): success = yes
assert_20170725235416_1.dmp[16428]: response: CrashID=bp-25350569-777b-425f-b2f7-cf6052170725
assert_20170725235416_1.dmp[16428]: file ''/tmp/dumps/assert_20170725235416_1.dmp'', upload yes: ''CrashID=bp-25350569-777b-425f-b2f7-cf6052170725''
Assert( Assertion Failed: m_pInternalPipe->BRead failed ):../common/pipes.cpp:572

crash_20170725235431_2.dmp[16434]: Uploading dump (out-of-process)
/tmp/dumps/crash_20170725235431_2.dmp
crash_20170725235431_2.dmp[16434]: Finished uploading minidump (out-of-process): success = yes
crash_20170725235431_2.dmp[16434]: response: Discarded=1
crash_20170725235431_2.dmp[16434]: file ''/tmp/dumps/crash_20170725235431_2.dmp'', upload yes: ''Discarded=1''
../common/pipes.cpp (572) : Assertion Failed: m_pInternalPipe->BRead failed