gzserver dying in office demo

aaron@ws:~/workspaces/demos_ws$ ros2 launch demos office.launch.xml 
[INFO] [launch]: All log files can be found below /home/aaron/.ros/log/2020-03-13-13-12-47-016239-ws-14294
[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [rmf_traffic_schedule-1]: process started with pid [14312]
[INFO] [building_map_server-2]: process started with pid [14313]
[INFO] [rviz2-3]: process started with pid [14314]
[INFO] [fleet_state_visualizer-4]: process started with pid [14315]
[INFO] [rviz2-5]: process started with pid [14316]
[INFO] [door_supervisor-6]: process started with pid [14319]
[INFO] [gzserver-7]: process started with pid [14325]
[INFO] [gzclient-8]: process started with pid [14332]
[INFO] [magni_fleet_adapter-9]: process started with pid [14341]
[INFO] [magni_state_aggregator-10]: process started with pid [14342]
[INFO] [dispenser-11]: process started with pid [14344]
[INFO] [dispenser-12]: process started with pid [14346]
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Launching fleet adapter for [magni]
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [linear_velocity] set to: 0.400000
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [angular_velocity] set to: 2.200000
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [linear_acceleration] set to: 3.000000
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [angular_acceleration] set to: 5.000000
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [profile_radius] set to: 0.300000
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [reversible] set to: 1
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [delay_threshold] set to: 15.000000
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [retry_wait] set to: 10.000000
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [planning_timeout] set to: 5.000000
[magni_fleet_adapter-9] Adding waypoint [0] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [3] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [5] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [7] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [10] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [13] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [14] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [15] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [16] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [17] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [18] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [19] as a parking spot
[magni_fleet_adapter-9] Adding waypoint [23] as a parking spot
[magni_fleet_adapter-9] Named waypoints:
[magni_fleet_adapter-9]  -- [supplies]
[magni_fleet_adapter-9]  -- [magni2_charger]
[magni_fleet_adapter-9]  -- [coe]
[magni_fleet_adapter-9]  -- [magni1_charger]
[magni_fleet_adapter-9]  -- [hardware_2]
[magni_fleet_adapter-9]  -- [cubicle_2]
[magni_fleet_adapter-9]  -- [pantry]
[magni_fleet_adapter-9]  -- [station_1]
[magni_fleet_adapter-9]  -- [lounge]
[magni_fleet_adapter-9]  -- [cubicle_1]
[magni_fleet_adapter-9]  -- [hardware_1]
[magni_fleet_adapter-9]  -- [station_2]
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Parameter [discovery_timeout] set to: 60.000000
[magni_fleet_adapter-9] Starting [magni]
[gzclient-8] Gazebo multi-robot simulator, version 9.12.0
[gzclient-8] Copyright (C) 2012 Open Source Robotics Foundation.
[gzclient-8] Released under the Apache 2 License.
[gzclient-8] http://gazebosim.org
[gzclient-8] 
[gzserver-7] Gazebo multi-robot simulator, version 9.12.0
[gzserver-7] Copyright (C) 2012 Open Source Robotics Foundation.
[gzserver-7] Released under the Apache 2 License.
[gzserver-7] http://gazebosim.org
[gzserver-7] 
[gzserver-7] [Msg] Waiting for master.
[gzserver-7] [Msg] Connected to gazebo master @ http://127.0.0.1:11345
[gzserver-7] [Msg] Publicized address: 192.168.1.205
[gzserver-7] [Wrn] [OBJLoader.cc:141] Missing material for shape[OfficeChairBlack_Col] in OBJ file[/home/aaron/workspaces/demos_ws/install/rmf_demo_assets/share/rmf_demo_assets/models/OfficeChairBlack/meshes/OfficeChairBlack_Col.obj]
[gzserver-7] [Wrn] [OBJLoader.cc:141] Missing material for shape[OfficeChairGrey_Col] in OBJ file[/home/aaron/workspaces/demos_ws/install/rmf_demo_assets/share/rmf_demo_assets/models/OfficeChairGrey/meshes/OfficeChairGrey_Col.obj]
[gzserver-7] [Wrn] [OBJLoader.cc:141] Missing material for shape[Cube_Cube.001] in OBJ file[/home/aaron/workspaces/demos_ws/install/rmf_demo_assets/share/rmf_demo_assets/models/AdjTable/meshes/AdjTable_Col.obj]
[gzserver-7] [Wrn] [OBJLoader.cc:141] Missing material for shape[Cube] in OBJ file[/home/aaron/workspaces/demos_ws/install/rmf_demo_assets/share/rmf_demo_assets/models/SmallCubicle/meshes/SmallCubicle_Col.obj]
[gzserver-7] [Wrn] [OBJLoader.cc:141] Missing material for shape[Cube] in OBJ file[/home/aaron/workspaces/demos_ws/install/rmf_demo_assets/share/rmf_demo_assets/models/BigCubicle/meshes/BigCubicle_Col.obj]
[gzserver-7] [Wrn] [OBJLoader.cc:141] Missing material for shape[OfficeChairBlue_Col] in OBJ file[/home/aaron/workspaces/demos_ws/install/rmf_demo_assets/share/rmf_demo_assets/models/OfficeChairBlue/meshes/OfficeChairBlue_Col.obj]
[gzserver-7] [Wrn] [OBJLoader.cc:141] Missing material for shape[Cube] in OBJ file[/home/aaron/workspaces/demos_ws/install/rmf_demo_assets/share/rmf_demo_assets/models/ConfTable/meshes/ConfTable_Col.obj]
[gzserver-7] [Wrn] [OBJLoader.cc:141] Missing material for shape[Cube] in OBJ file[/home/aaron/workspaces/demos_ws/install/rmf_demo_assets/share/rmf_demo_assets/models/RecTable/meshes/RecTable_Col.obj]
[gzserver-7] [Wrn] [OBJLoader.cc:141] Missing material for shape[SquareShelf_Col_Cube.005] in OBJ file[/home/aaron/workspaces/demos_ws/install/rmf_demo_assets/share/rmf_demo_assets/models/SquareShelf/meshes/SquareShelf_Col.obj]
[gzserver-7] Using specified value [beverage_dispenser] for property [load_guid]
[gzserver-7] Using specified value [beverage_collector] for property [unload_guid]
[gzserver-7] Using specified value [16.84 -5.4 0.3 0 -0 0] for property [load_pose]
[gzserver-7] Using specified value [22.373 -7.615 0.81 0 -0 0] for property [unload_pose]
[gzserver-7] Started teleport_plugin node...
[gzserver-7] [WARN] [rcl.logging_rosout]: Publisher already registered for provided node name. If this is due to multiple nodes with the same name then all logs for that logger name will go out over the existing publisher. As soon as any node with that name is destructed it will unregister the publisher, preventing any further logs for that name from being published on the rosout topic.
[gzserver-7] [INFO] [slotcar_magni2]: hello i am magni2
[gzserver-7] [INFO] [slotcar_magni2]: Setting nominal drive speed to: 0.500000
[gzserver-7] [INFO] [slotcar_magni2]: Setting nominal drive acceleration to: 0.250000
[gzserver-7] [INFO] [slotcar_magni2]: Setting max drive acceleration to: 0.750000
[gzserver-7] [INFO] [slotcar_magni2]: Setting nominal turn speed to:0.600000
[gzserver-7] [INFO] [slotcar_magni2]: Setting nominal turn acceleration to:1.500000
[gzserver-7] [INFO] [slotcar_magni2]: Setting max turn acceleration to:2.000000
[gzserver-7] [INFO] [slotcar_magni2]: Setting stop distance to:0.750000
[gzserver-7] [INFO] [slotcar_magni2]: Setting stop radius to:0.750000
[gzserver-7] [INFO] [slotcar_magni2]: Setting tire radius to:0.100000
[gzserver-7] [INFO] [slotcar_magni2]: Setting base width to:0.320600
[gzserver-7] [INFO] [slotcar_magni2]: Setting name to: magni2
[gzserver-7] [INFO] [slotcar_magni1]: hello i am magni1
[gzserver-7] [INFO] [slotcar_magni1]: Setting nominal drive speed to: 0.500000
[gzserver-7] [INFO] [slotcar_magni1]: Setting nominal drive acceleration to: 0.250000
[gzserver-7] [INFO] [slotcar_magni1]: Setting max drive acceleration to: 0.750000
[gzserver-7] [INFO] [slotcar_magni1]: Setting nominal turn speed to:0.600000
[gzserver-7] [INFO] [slotcar_magni1]: Setting nominal turn acceleration to:1.500000
[gzserver-7] [INFO] [slotcar_magni1]: Setting max turn acceleration to:2.000000
[gzserver-7] [INFO] [slotcar_magni1]: Setting stop distance to:0.750000
[gzserver-7] [INFO] [slotcar_magni1]: Setting stop radius to:0.750000
[gzserver-7] [INFO] [slotcar_magni1]: Setting tire radius to:0.100000
[gzserver-7] [INFO] [slotcar_magni1]: Setting base width to:0.320600
[gzserver-7] [INFO] [slotcar_magni1]: Setting name to: magni1
[gzserver-7] [INFO] [door]: Loading DoorPlugin for [main_door]
[gzserver-7] Using specified value [0.5] for property [v_max_door]
[gzserver-7] Using specified value [0.3] for property [a_max_door]
[gzserver-7] Using specified value [0.15] for property [a_nom_door]
[gzserver-7] Using specified value [0.01] for property [dx_min_door]
[gzserver-7] Using specified value [500] for property [f_max_door]
[gzserver-7] Using specified attribute value [left_joint] for property [left_joint_name]
[gzserver-7] Using specified attribute value [right_joint] for property [right_joint_name]
[gzserver-7] Using specified attribute value [DoubleSwingDoor] for property [type]
[gzserver-7] [WARN] [rcl.logging_rosout]: Publisher already registered for provided node name. If this is due to multiple nodes with the same name then all logs for that logger name will go out over the existing publisher. As soon as any node with that name is destructed it will unregister the publisher, preventing any further logs for that name from being published on the rosout topic.
[gzserver-7] [INFO] [door]: Finished loading [main_door]
[gzserver-7] [INFO] [door]: Loading DoorPlugin for [coe_door]
[gzserver-7] Using specified value [0.5] for property [v_max_door]
[gzserver-7] Using specified value [0.3] for property [a_max_door]
[gzserver-7] Using specified value [0.15] for property [a_nom_door]
[gzserver-7] Using specified value [0.01] for property [dx_min_door]
[gzserver-7] Using specified value [500] for property [f_max_door]
[gzserver-7] Using specified attribute value [left_joint] for property [left_joint_name]
[gzserver-7] Using specified attribute value [empty_joint] for property [right_joint_name]
[gzserver-7] Using specified attribute value [SwingDoor] for property [type]
[gzserver-7] [WARN] [rcl.logging_rosout]: Publisher already registered for provided node name. If this is due to multiple nodes with the same name then all logs for that logger name will go out over the existing publisher. As soon as any node with that name is destructed it will unregister the publisher, preventing any further logs for that name from being published on the rosout topic.
[gzserver-7] [INFO] [door]: Finished loading [coe_door]
[gzserver-7] [INFO] [door]: Loading DoorPlugin for [hardware_door]
[gzserver-7] Using specified value [0.5] for property [v_max_door]
[gzserver-7] Using specified value [0.3] for property [a_max_door]
[gzserver-7] Using specified value [0.15] for property [a_nom_door]
[gzserver-7] Using specified value [0.01] for property [dx_min_door]
[gzserver-7] Using specified value [500] for property [f_max_door]
[gzserver-7] Using specified attribute value [left_joint] for property [left_joint_name]
[gzserver-7] Using specified attribute value [empty_joint] for property [right_joint_name]
[gzserver-7] Using specified attribute value [SwingDoor] for property [type]
[gzclient-8] [Msg] Waiting for master.
[gzclient-8] [Msg] Connected to gazebo master @ http://127.0.0.1:11345
[gzclient-8] [Msg] Publicized address: 192.168.1.205
[gzclient-8] [Err] [Plugin.hh:178] Failed to load plugin libtoggle_floors.so: libtoggle_floors.so: cannot open shared object file: No such file or directory
[gzclient-8] [Err] [MainWindow.cc:2086] Unable to create gui overlay plugin with filename[libtoggle_floors.so]
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Found a robot: [magni2]
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Found a robot: [magni1]
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Received looping task ID [loop#565ec0aa-64e9-11ea-b3fb-7c67a2ef3c4c] and assigned it to [magni1]
[magni_fleet_adapter-9] beginning task
[magni_fleet_adapter-9] Noting previous delay: 0
[ERROR] [gzserver-7]: process has died [pid 14325, exit code -11, cmd 'gzserver --verbose -s libgazebo_ros_factory.so -s libgazebo_ros_init.so /home/aaron/workspaces/demos_ws/install/rmf_demo_maps/share/rmf_demo_maps/maps/office/office.world'].
[gzclient-8] [Wrn] [Publisher.cc:135] Queue limit reached for topic /gazebo/world/user_camera/pose, deleting message. This warning is printed only once.
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Already received looping task request [loop#565ec0aa-64e9-11ea-b3fb-7c67a2ef3c4c] so it will be ignored
[magni_fleet_adapter-9] [INFO] [magni_fleet_adapter]: Received looping task ID [loop#5668b218-64e9-11ea-b3fb-7c67a2ef3c4c] and assigned it to [magni2]
[magni_fleet_adapter-9] beginning task
[magni_fleet_adapter-9] Noting previous delay: 0
^C[WARNING] [launch]: user interrupted with ctrl-c (SIGINT)
[INFO] [rmf_traffic_schedule-1]: process has finished cleanly [pid 14312]
[INFO] [building_map_server-2]: process has finished cleanly [pid 14313]
[INFO] [rviz2-3]: process has finished cleanly [pid 14314]
[INFO] [fleet_state_visualizer-4]: process has finished cleanly [pid 14315]
[INFO] [rviz2-5]: process has finished cleanly [pid 14316]
[INFO] [door_supervisor-6]: process has finished cleanly [pid 14319]
[ERROR] [magni_fleet_adapter-9]: process has died [pid 14341, exit code -11, cmd '/home/aaron/workspaces/demos_ws/install/rmf_fleet_adapter/lib/rmf_fleet_adapter/full_control --ros-args -r __node:=magni_fleet_adapter --params-file /tmp/launch_params_h4jf5qfk --params-file /tmp/launch_params_k00pkyvh --params-file /tmp/launch_params_r96jeyv1 --params-file /tmp/launch_params_394d591m --params-file /tmp/launch_params_0ypj20k1 --params-file /tmp/launch_params_vsay2xy9 --params-file /tmp/launch_params_gdhiranr --params-file /tmp/launch_params_yntgpj4w --params-file /tmp/launch_params_fmv4iwuc --params-file /tmp/launch_params_qm8uzm51 --params-file /tmp/launch_params_j45e1bk2 --params-file /tmp/launch_params_7ywkmfir --params-file /tmp/launch_params_ikuqw4qm'].
[INFO] [magni_state_aggregator-10]: process has finished cleanly [pid 14342]
[ERROR] [dispenser-11]: process has died [pid 14344, exit code 1, cmd '/home/aaron/workspaces/demos_ws/install/rmf_demo_tasks/lib/rmf_demo_tasks/dispenser --ros-args --params-file /tmp/launch_params_xq7bjpe_ --params-file /tmp/launch_params_e_ugq7z3'].
[ERROR] [dispenser-12]: process has died [pid 14346, exit code 1, cmd '/home/aaron/workspaces/demos_ws/install/rmf_demo_tasks/lib/rmf_demo_tasks/dispenser --ros-args --params-file /tmp/launch_params_9jmiknbn --params-file /tmp/launch_params_qc9s77y2'].
[dispenser-11] Traceback (most recent call last):
[dispenser-11]   File "/home/aaron/workspaces/demos_ws/install/rmf_demo_tasks/lib/rmf_demo_tasks/dispenser", line 11, in <module>
[dispenser-11]     load_entry_point('rmf-demo-tasks==0.0.0', 'console_scripts', 'dispenser')()
[dispenser-11]   File "/home/aaron/workspaces/demos_ws/install/rmf_demo_tasks/lib/python3.6/site-packages/rmf_demo_tasks/dispenser.py", line 118, in main
[dispenser-11]     rclpy.spin(dispenser)
[dispenser-11]   File "/opt/ros/eloquent/lib/python3.6/site-packages/rclpy/__init__.py", line 190, in spin
[dispenser-11]     executor.spin_once()
[dispenser-11]   File "/opt/ros/eloquent/lib/python3.6/site-packages/rclpy/executors.py", line 676, in spin_once
[dispenser-11]     handler, entity, node = self.wait_for_ready_callbacks(timeout_sec=timeout_sec)
[dispenser-11]   File "/opt/ros/eloquent/lib/python3.6/site-packages/rclpy/executors.py", line 662, in wait_for_ready_callbacks
[dispenser-11]     return next(self._cb_iter)
[dispenser-11]   File "/opt/ros/eloquent/lib/python3.6/site-packages/rclpy/executors.py", line 560, in _wait_for_ready_callbacks
[dispenser-11]     _rclpy.rclpy_wait(wait_set, timeout_nsec)
[dispenser-11] KeyboardInterrupt
[dispenser-12] Traceback (most recent call last):
[dispenser-12]   File "/home/aaron/workspaces/demos_ws/install/rmf_demo_tasks/lib/rmf_demo_tasks/dispenser", line 11, in <module>
[dispenser-12]     load_entry_point('rmf-demo-tasks==0.0.0', 'console_scripts', 'dispenser')()
[dispenser-12]   File "/home/aaron/workspaces/demos_ws/install/rmf_demo_tasks/lib/python3.6/site-packages/rmf_demo_tasks/dispenser.py", line 118, in main
[dispenser-12]     rclpy.spin(dispenser)
[dispenser-12]   File "/opt/ros/eloquent/lib/python3.6/site-packages/rclpy/__init__.py", line 190, in spin
[dispenser-12]     executor.spin_once()
[dispenser-12]   File "/opt/ros/eloquent/lib/python3.6/site-packages/rclpy/executors.py", line 676, in spin_once
[dispenser-12]     handler, entity, node = self.wait_for_ready_callbacks(timeout_sec=timeout_sec)
[dispenser-12]   File "/opt/ros/eloquent/lib/python3.6/site-packages/rclpy/executors.py", line 662, in wait_for_ready_callbacks
[dispenser-12]     return next(self._cb_iter)
[dispenser-12]   File "/opt/ros/eloquent/lib/python3.6/site-packages/rclpy/executors.py", line 560, in _wait_for_ready_callbacks
[dispenser-12]     _rclpy.rclpy_wait(wait_set, timeout_nsec)
[dispenser-12] KeyboardInterrupt
[magni_state_aggregator-10] [INFO] [rclcpp]: signal_handler(signal_value=2)
[rmf_traffic_schedule-1] [INFO] [rmf_traffic_schedule_node]: Beginning traffic schedule node
[rmf_traffic_schedule-1] [INFO] [rmf_traffic_schedule_node]: [1] Registered query
[rmf_traffic_schedule-1] [INFO] [rmf_traffic_schedule_node]: [2] Registered query
[rmf_traffic_schedule-1] [INFO] [rmf_traffic_schedule_node]: Received trajectory [1]
[rmf_traffic_schedule-1] [INFO] [rmf_traffic_schedule_node]: Received trajectory [2]
[rmf_traffic_schedule-1] [INFO] [rclcpp]: signal_handler(signal_value=2)
[rmf_traffic_schedule-1] [INFO] [rmf_traffic_schedule_node]: Closing down traffic schedule node
[rviz2-5] [INFO] [rviz2]: Stereo is NOT SUPPORTED
[rviz2-5] [INFO] [rviz2]: OpenGl version: 4.6 (GLSL 4.6)
[rviz2-5] [INFO] [rviz2]: Stereo is NOT SUPPORTED
[rviz2-5] [INFO] [rclcpp]: signal_handler(signal_value=2)
[INFO] [gzclient-8]: process has finished cleanly [pid 14332]
[gzclient-8] 
[gzclient-8] 
aaron@ws:~/workspaces/demos_ws$