1:17.94 INFO Starting runner
 1:18.40 pid:2682 [2694:2714:0324/082219.693986:ERROR:bus.cc(393)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
 1:18.46 pid:2682 
 1:18.46 pid:2682 DevTools listening on ws://127.0.0.1:40825/devtools/browser/25e20313-7194-4801-b0a8-f8533f4327cd
 1:18.47 pid:2682 [2694:2726:0324/082219.759661:ERROR:bus.cc(393)] Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix")
 1:18.47 pid:2682 [2694:2726:0324/082219.759696:ERROR:bus.cc(393)] Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix")
 1:18.48 pid:2682 [2694:2726:0324/082219.773367:ERROR:bus.cc(393)] Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix")
 1:18.48 pid:2682 [2694:2726:0324/082219.773401:ERROR:bus.cc(393)] Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix")
 1:18.50 pid:2682 [2694:2710:0324/082219.794201:ERROR:gpu_process_host.cc(990)] GPU process exited unexpectedly: exit_code=132
 1:18.50 pid:2682 [2694:2710:0324/082219.794227:WARNING:gpu_process_host.cc(1298)] The GPU process has crashed 1 time(s)
 1:18.53 pid:2682 [1616574139.828][WARNING]: You are using an unsupported command-line switch: --disable-build-check. Please don't report bugs that cannot be reproduced with this switch removed.
 1:18.54 pid:2682 [2694:2764:0324/082219.840326:ERROR:bus.cc(393)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
 1:18.55 pid:2682 [2694:2764:0324/082219.840379:ERROR:bus.cc(393)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
 1:18.55 pid:2682 [2694:2764:0324/082219.840432:ERROR:bus.cc(393)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
 1:18.55 pid:2682 [2694:2764:0324/082219.840445:WARNING:property.cc(144)] DaemonVersion: GetAndBlock: failed.
 1:18.55 pid:2682 [2694:2764:0324/082219.840482:ERROR:bus.cc(393)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
 1:18.55 pid:2682 [2694:2764:0324/082219.840521:ERROR:bus.cc(393)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
 1:18.59 pid:2682 [2694:2710:0324/082219.888187:ERROR:gpu_process_host.cc(990)] GPU process exited unexpectedly: exit_code=132
 1:18.59 pid:2682 [2694:2710:0324/082219.888216:WARNING:gpu_process_host.cc(1298)] The GPU process has crashed 2 time(s)
 1:18.68 pid:2682 [2694:2710:0324/082219.978010:ERROR:gpu_process_host.cc(990)] GPU process exited unexpectedly: exit_code=132
 1:18.68 pid:2682 [2694:2710:0324/082219.978036:WARNING:gpu_process_host.cc(1298)] The GPU process has crashed 3 time(s)
 1:18.75 pid:2682 [2694:2710:0324/082220.048966:ERROR:gpu_process_host.cc(990)] GPU process exited unexpectedly: exit_code=132
 1:18.75 pid:2682 [2694:2710:0324/082220.048994:WARNING:gpu_process_host.cc(1298)] The GPU process has crashed 4 time(s)
 1:18.81 pid:2682 [2694:2710:0324/082220.112150:ERROR:gpu_process_host.cc(990)] GPU process exited unexpectedly: exit_code=132
 1:18.82 pid:2682 [2694:2710:0324/082220.112197:WARNING:gpu_process_host.cc(1298)] The GPU process has crashed 5 time(s)
 1:18.90 pid:2682 [2694:2710:0324/082220.192910:ERROR:gpu_process_host.cc(990)] GPU process exited unexpectedly: exit_code=132
 1:18.90 pid:2682 [2694:2710:0324/082220.192944:WARNING:gpu_process_host.cc(1298)] The GPU process has crashed 6 time(s)
 1:18.91 pid:2682 [2779:2779:0324/082220.201331:WARNING:vaapi_wrapper.cc(588)] VAAPI video acceleration not available for disabled
 1:18.91 pid:2682 [2779:2779:0324/082220.201523:ERROR:gpu_init.cc(430)] Passthrough is not supported, GL is disabled
 1:18.91 pid:2682 [2694:2710:0324/082220.205091:WARNING:gpu_process_host.cc(1018)] Reinitialized the GPU process after a crash. The reported initialization time was 0 ms
mem avail: 13565 of 14812 MiB (91 %), swap free:    0 of    0 MiB ( 0 %)
 1:47.50 WARNING Failed to start protocol connection
 1:47.50 WARNING Traceback (most recent call last):
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/protocol.py", line 47, in setup
    self.connect()
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 329, in connect
    self.webdriver.start()
  File "/home/test/web-platform-tests/tools/webdriver/webdriver/client.py", line 529, in start
    value = self.send_command("POST", "session", body=body)
  File "/home/test/web-platform-tests/tools/webdriver/webdriver/client.py", line 570, in send_command
    response = self.transport.send(
  File "/home/test/web-platform-tests/tools/webdriver/webdriver/transport.py", line 235, in send
    response = self._request(method, uri, payload, headers, timeout=None)
  File "/home/test/web-platform-tests/tools/webdriver/webdriver/transport.py", line 260, in _request
    response = self.connection.getresponse()
  File "/usr/lib/python3.8/http/client.py", line 1332, in getresponse
    response.begin()
  File "/usr/lib/python3.8/http/client.py", line 303, in begin
    version, status, reason = self._read_status()
  File "/usr/lib/python3.8/http/client.py", line 272, in _read_status
    raise RemoteDisconnected("Remote end closed connection without"
http.client.RemoteDisconnected: Remote end closed connection without response