Filed by: csabou [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=250793694&repo=autoland
Full log: https://queue.taskcluster.net/v1/task/SZbAdbfIRZmM5B5p35uudQ/runs/0/artifacts/public/logs/live_backing.log

22:44:28 INFO - TEST-INFO | started process 3708 (C:\Users\task_1560003003\build\application\firefox\firefox -wait-for-browser -no-deelevate http://127.0.0.1:49757/getInfo.html --wait-for-browser)
22:44:29 INFO - 1560033869338 addons.webextension.screenshots@mozilla.org WARN Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: mozillaAddons
22:44:29 INFO - 1560033869338 addons.webextension.screenshots@mozilla.org WARN Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: telemetry
22:44:29 INFO - 1560033869338 addons.webextension.screenshots@mozilla.org WARN Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: resource://pdf.js/
22:44:29 INFO - 1560033869338 addons.webextension.screenshots@mozilla.org WARN Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: about:reader*
22:44:30 ERROR - JavaScript error: chrome://browser/content/search/searchbar.js, line 164: TypeError: this._textbox is undefined
22:44:30 INFO - WARN: compileToBinary(259):
22:44:30 INFO - C:\fakepath(337,18-133): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them
22:44:30 INFO - C:\fakepath(343,62-116): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them
22:44:30 INFO - C:\fakepath(366,75-84): warning X3556: integer divides may be much slower, try using uints if possible.
22:44:30 INFO - C:\fakepath(369,50-59): warning X3556: integer modulus may be much slower, try using uints if possible.
22:44:30 INFO - C:\fakepath(385,33-90): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them
22:44:30 INFO - C:\fakepath(174,1-6): warning X4000: use of potentially uninitialized variable (dyn_index_vec4_float4)
22:44:30 INFO - C:\fakepath(289,25-29): error X4576: Input array signature parameter SV_Position cannot be indexed dynamically.
22:44:30 INFO - WARN: compileToBinary(259):
22:44:30 INFO - C:\fakepath(337,18-133): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them
22:44:30 INFO - C:\fakepath(343,62-116): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them
22:44:30 INFO - C:\fakepath(366,75-84): warning X3556: integer divides may be much slower, try using uints if possible.
22:44:30 INFO - C:\fakepath(369,50-59): warning X3556: integer modulus may be much slower, try using uints if possible.
22:44:30 INFO - C:\fakepath(385,33-90): warning X3571: pow(f, e) will not work for negative f, use abs(f) or conditionally handle negative values if you expect them
22:44:30 INFO - C:\fakepath(174,1-6): warning X4000: use of potentially uninitialized variable (dyn_index_vec4_float4)
22:44:30 INFO - C:\fakepath(289,25-29): error X4576: Input array signature parameter SV_Position cannot be indexed dynamically.
22:44:30 INFO - WARN: compileToBinary(259):
22:44:30 INFO - C:\fakepath(366,75-84): warning X3556: integer divides may be much slower, try using uints if possible.
22:44:30 INFO - C:\fakepath(369,50-59): warning X3556: integer modulus may be much slower, try using uints if possible.
22:44:30 INFO - C:\fakepath(174,1-6): warning X4000: use of potentially uninitialized variable (dyn_index_vec4_float4)
22:44:30 INFO - C:\fakepath(225,1): warning X4000: use of potentially uninitialized variable (f_distance_aa)
22:44:30 INFO - C:\fakepath(262,1): warning X4000: use of potentially uninitialized variable (f_do_clip)
22:44:31 INFO - [Child 2152, Chrome_ChildThread] WARNING: pipe error: 109: file z:/task_1560017068/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 341
22:44:31 INFO - [Child 2152, Chrome_ChildThread] WARNING: pipe error: 109: file z:/task_1560017068/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 341
22:44:31 INFO - __metrics Screen width/height: 1024/768
22:44:31 INFO - colorDepth: 24
22:44:31 INFO - Browser inner width/height: 1024/693
22:44:31 INFO - __metrics
22:44:31 INFO - WebGL(0000028AFA090000)::ForceLoseContext
22:44:31 INFO - WebGL(0000028AFA092000)::ForceLoseContext
22:44:31 INFO - about:support {"application":{"name":"Firefox","osVersion":"Windows_NT 10.0","version":"69.0a1","buildID":"20190608182857","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0","safeMode":false,"updateChannel":"nightly-autoland","supportURL":"https://support.mozilla.org/1/firefox/69.0a1/WINNT/en-US/","numTotalWindows":1,"numRemoteWindows":1,"launcherProcessState":0,"remoteAutoStart":true,"autoStartStatus":1,"policiesStatus":0,"keyLocationServiceGoogleFound":true,"keySafebrowsingGoogleFound":true,"keyMozillaFound":true},"securitySoftware":{"registeredAntiVirus":"","registeredAntiSpyware":"","registeredFirewall":""},"processes":{"remoteTypes":{"extension":1,"web":2,"gpu":1},"maxWebContentProcesses":8},"modifiedPreferences":{"browser.cache.disk.filesystem_reported":1,"browser.cache.disk.smart_size.enabled":false,"browser.link.open_newwindow":2,"browser.startup.homepage_override.mstone":"69.0a1","browser.startup.homepage_override.buildID":"20190608182857","browser.tabs.remote.autostart":true,"browser.urlbar.userMadeSearchSuggestionsChoice":true,"dom.forms.autocomplete.formautofill":true,"dom.allow_scripts_to_close_windows":true,"dom.disable_open_during_load":false,"dom.disable_window_flip":true,"dom.disable_window_move_resize":true,"dom.max_chrome_script_run_time":0,"dom.max_script_run_time":0,"dom.push.connection.enabled":false,"dom.send_after_paint_to_content":false,"extensions.checkCompatibility":false,"extensions.lastAppVersion":"69.0a1","general.useragent.updates.enabled":false,"gfx.crash-guard.wmfvpxvideo.deviceID":"0x193a","gfx.crash-guard.status.wmfvpxvideo":2,"gfx.crash-guard.wmfvpxvideo.driverVersion":"22.20.16.4815","gfx.crash-guard.wmfvpxvideo.appVersion":"69.0a1","gfx.webrender.all.qualified":false,"idle.lastDailyNotification":-1,"layers.mlgpu.sanity-test-failed":false,"media.allowed-to-play.enabled":true,"media.autoplay.ask-permission":false,"media.autoplay.block-webaudio":false,"media.autoplay.default":0,"media.autoplay.enabled.user-gestures-needed":true,"media.capturestream_hints.enabled":true,"media.gmp-manager.updateEnabled":false,"media.gmp-manager.url":"http://127.0.0.1/gmpmanager-dummy/update.xml","media.gmp.storage.version.observed":1,"media.hardware-video-decoding.failed":false,"media.libavcodec.allow-obsolete":true,"media.navigator.enabled":true,"media.navigator.permission.disabled":true,"media.peerconnection.enabled":true,"network.http.speculative-parallel-limit":0,"places.history.expiration.transient_current_max_pages":112348,"places.database.lastMaintenance":2147483647,"plugin.disable_full_page_plugin_for_types":"application/pdf","plugin.state.flash":0,"plugins.flashBlock.enabled":false,"privacy.sanitize.pending":"[{\"id\":\"newtab-container\",\"itemsToClear\":[],\"options\":{}}]","privacy.reduceTimerPrecision":false,"privacy.trackingprotection.annotate_channels":false,"privacy.trackingprotection.enabled":false,"privacy.trackingprotection.introURL":"http://127.0.0.1/trackingprotection/tour","privacy.trackingprotection.pbmode.enabled":false,"security.certerrors.mitm.priming.enabled":false,"security.enable_java":false,"security.fileuri.strict_origin_policy":false,"security.sandbox.content.tempDirSuffix":"{4b74666f-be3b-4aab-ac16-35498daacdf3}","security.sandbox.plugin.tempDirSuffix":"{d63a59fe-eb88-47fc-9dfa-845db1625b8d}","security.turn_off_all_security_so_that_viruses_can_take_over_this_computer":true,"services.sync.engine.addresses.available":true},"lockedPreferences":{},"media":{"currentAudioBackend":"unknown","currentMaxAudioChannels":0,"currentPreferredSampleRate":44100,"audioOutputDevices":[],"audioInputDevices":[]},"javaScript":{"incrementalGCEnabled":true},"accessibility":{"isActive":false,"forceDisabled":0,"handlerUsed":false,"instantiator":""},"libraryVersions":{"NSPR":{"minVersion":"4.21","version":"4.21"},"NSS":{"minVersion":"3.45 Beta","version":"3.45 Beta"},"NSSUTIL":{"minVersion":"3.45 Beta","version":"3.45 Beta"},"NSSSSL":{"minVersion":"3.45 Beta","version":"3.45 Beta"},"NSSSMIME":{"minVersion":"3.45 Beta","version":"3.45 Beta"}},"userJS":{"exists":true},"intl":{"localeService":{"requested":["en-US"],"available":["en-US"],"supported":["en-US"],"regionalPrefs":["en-US"],"defaultLocale":"en-US"},"osPrefs":{"systemLocales":["en-US"],"regionalPrefsLocales":["en-US"]}},"crashes":{"submitted":[],"pending":0},"sandbox":{"contentSandboxLevel":5,"effectiveContentSandboxLevel":5},"graphics":{"numTotalWindows":1,"numAcceleratedWindows":1,"windowLayerManagerType":"WebRender","windowLayerManagerRemote":true,"windowUsingAdvancedLayers":false,"adapterDescription":"Intel(R) Iris(R) Pro Graphics P580","adapterVendorID":"0x8086","adapterDeviceID":"0x193a","adapterSubsysID":"18a9103c","adapterRAM":"Unknown","adapterDrivers":"igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32","driverVendor":"","driverVersion":"22.20.16.4815","driverDate":"9-26-2017","adapterDescription2":"","adapterVendorID2":"","adapterDeviceID2":"","adapterSubsysID2":"","adapterRAM2":"","adapterDrivers2":"","driverVendor2":"","driverVersion2":"","driverDate2":"","isGPU2Active":false,"direct2DEnabled":true,"directWriteEnabled":true,"directWriteVersion":"10.0.15063.0","clearTypeParameters":"Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50 ","usesTiling":false,"contentUsesTiling":true,"offMainThreadPaintEnabled":true,"offMainThreadPaintWorkerCount":4,"targetFrameRate":60,"webgl1Renderer":"Google Inc. -- ANGLE (Intel(R) Iris(R) Pro Graphics P580 Direct3D11 vs_5_0 ps_5_0)","webgl1Version":"OpenGL ES 2.0 (ANGLE 2.1.0.ee49c7b031ea)","webgl1DriverExtensions":"GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_explicit_context GL_ANGLE_explicit_context_gles1 GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_memory_size GL_ANGLE_multi_draw GL_ANGLE_multiview_multisample GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_provoking_vertex GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_color_buffer_float_rgb GL_CHROMIUM_color_buffer_float_rgba GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_func_extended GL_EXT_blend_minmax GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_float_blend GL_EXT_frag_depth GL_EXT_instanced_arrays GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_bptc GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_s3tc_srgb GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_KHR_parallel_shader_compile GL_KHR_robust_buffer_access_behavior GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_border_clamp GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object OES_compressed_EAC_R11_signed_texture OES_compressed_EAC_R11_unsigned_texture OES_compressed_EAC_RG11_signed_texture OES_compressed_EAC_RG11_unsigned_texture OES_compressed_ETC2_RGB8_texture OES_compressed_ETC2_RGBA8_texture OES_compressed_ETC2_punchthroughA_RGBA8_texture OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture OES_compressed_ETC2_sRGB8_alpha8_texture OES_compressed_ETC2_sRGB8_texture ","webgl1Extensions":"ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_disjoint_timer_query EXT_float_blend EXT_frag_depth EXT_shader_texture_lod EXT_sRGB EXT_texture_compression_bptc EXT_texture_filter_anisotropic OES_element_index_uint OES_standard_derivatives OES_texture_float OES_texture_float_linear OES_texture_half_float OES_texture_half_float_linear OES_vertex_array_object WEBGL_color_buffer_float WEBGL_compressed_texture_s3tc WEBGL_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_depth_texture WEBGL_draw_buffers WEBGL_lose_context","webgl1WSIInfo":"EGL_VENDOR: Google Inc. (adapter LUID: 0000000000006fe9)\nEGL_VERSION: 1.4 (ANGLE 2.1.0.ee49c7b031ea)\nEGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache EGL_ANDROID_recordable \nEGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses EGL_KHR_debug EGL_ANGLE_explicit_context ","webgl2Renderer":"Google Inc. -- ANGLE (Intel(R) Iris(R) Pro Graphics P580 Direct3D11 vs_5_0 ps_5_0)","webgl2Version":"OpenGL ES 3.0 (ANGLE 2.1.0.ee49c7b031ea)","webgl2DriverExtensions":"GL_ANGLE_client_arrays GL_ANGLE_copy_texture_3d GL_ANGLE_depth_texture GL_ANGLE_explicit_context GL_ANGLE_explicit_context_gles1 GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_memory_size GL_ANGLE_multi_draw GL_ANGLE_multiview_multisample GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_provoking_vertex GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_multisample GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_color_buffer_float_rgb GL_CHROMIUM_color_buffer_float_rgba GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_func_extended GL_EXT_blend_minmax GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_float_blend GL_EXT_frag_depth GL_EXT_instanced_arrays GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_bptc GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_s3tc_srgb GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_norm16 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_KHR_parallel_shader_compile GL_KHR_robust_buffer_access_behavior GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_border_clamp GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object GL_OVR_multiview2 OES_compressed_EAC_R11_signed_texture OES_compressed_EAC_R11_unsigned_texture OES_compressed_EAC_RG11_signed_texture OES_compressed_EAC_RG11_unsigned_texture OES_compressed_ETC2_RGB8_texture OES_compressed_ETC2_RGBA8_texture OES_compressed_ETC2_punchthroughA_RGBA8_texture OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture OES_compressed_ETC2_sRGB8_alpha8_texture OES_compressed_ETC2_sRGB8_texture ","webgl2Extensions":"EXT_color_buffer_float EXT_disjoint_timer_query EXT_float_blend EXT_texture_compression_bptc EXT_texture_filter_anisotropic OES_texture_float_linear WEBGL_compressed_texture_s3tc WEBGL_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context","webgl2WSIInfo":"EGL_VENDOR: Google Inc. (adapter LUID: 0000000000006fe9)\nEGL_VERSION: 1.4 (ANGLE 2.1.0.ee49c7b031ea)\nEGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache EGL_ANDROID_recordable \nEGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses EGL_KHR_debug EGL_ANGLE_explicit_context ","info":{"AzureCanvasBackend (UI Process)":"skia","AzureFallbackCanvasBackend (UI Process)":"cairo","AzureContentBackend (UI Process)":"skia","AzureCanvasBackend":"direct2d 1.1","AzureContentBackend":"skia","ApzWheelInput":1,"ApzDragInput":1,"ApzKeyboardInput":1,"ApzAutoscrollInput":1,"CMSOutputProfile":"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"},"featureLog":{"features":[{"name":"HW_COMPOSITING","description":"Compositing","status":"available","log":[{"type":"default","status":"available"}]},{"name":"D3D11_COMPOSITING","description":"Direct3D11 Compositing","status":"available","log":[{"type":"default","status":"available"}]},{"name":"DIRECT2D","description":"Direct2D","status":"available","log":[{"type":"default","status":"available"}]},{"name":"D3D11_HW_ANGLE","description":"Direct3D11 hardware ANGLE","status":"available","log":[{"type":"default","status":"available"}]},{"name":"GPU_PROCESS","description":"GPU Process","status":"available","log":[{"type":"default","status":"available"}]},{"name":"WEBRENDER","description":"WebRender","status":"available","log":[{"type":"default","status":"opt-in","message":"WebRender is an opt-in feature"},{"type":"user","status":"available","message":"Force enabled by envvar"}]},{"name":"WEBRENDER_QUALIFIED","description":"WebRender qualified","status":"blocked-device-too-old","log":[{"type":"default","status":"available"},{"type":"env","status":"blocked-device-too-old","message":"Device too old"}]},{"name":"OMTP","description":"Off Main Thread Painting","status":"available","log":[{"type":"default","status":"available"}]},{"name":"ADVANCED_LAYERS","description":"Advanced Layers","status":"available","log":[{"type":"default","status":"available"}]}],"fallbacks":[]},"crashGuards":[]},"extensions":[{"name":"Google","version":"1.0","isActive":true,"id":"google@search.mozilla.org"},{"name":"PageLoader extension","version":"1.1","isActive":true,"id":"pageloader@mozilla.org"},{"name":"Talos Powers","version":"1.1","isActive":true,"id":"talos-powers@mozilla.org"}],"features":[{"name":"Firefox Monitor","version":"3.0","id":"fxmonitor@mozilla.org"},{"name":"Firefox Screenshots","version":"39.0.0","id":"screenshots@mozilla.org"},{"name":"Form Autofill","version":"1.0","id":"formautofill@mozilla.org"},{"name":"Web Compat","version":"4.3.0","id":"webcompat@mozilla.org"},{"name":"WebCompat Reporter","version":"1.1.0","id":"webcompat-reporter@mozilla.org"}]}[Parent 5236, Gecko_IOThread] WARNING: pipe error: 109: file z:/task_1560017068/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 341
22:44:31 INFO - [Child 1220, Chrome_ChildThread] WARNING: pipe error: 109: file z:/task_1560017068/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 341
22:44:31 INFO - [Child 1220, Chrome_ChildThread] WARNING: pipe error: 109: file z:/task_1560017068/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 341
22:44:31 INFO - [GFX1-]: Failed to connect WebRenderBridgeChild.

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup

Recent failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=278785441&repo=autoland&lineNumber=2499

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit auto_nag documentation.

Recent failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=290751368&repo=mozilla-central&lineNumber=717

I assume this might be related to the JS error that appears right before:

[task 2020-02-27T12:17:07.591Z] 12:17:07 INFO - JavaScript warning: resource://gre/modules/Troubleshoot.jsm, line 618: Error: WebGL context was lost.

Also the next lines show that something is wrong with IPC and Firefox maybe crashed? Jeff, do you have an idea?

Context loss there is expected. I should probably make that warning clearer. about:support explicitly asks for its contexts to be lost after it's done with them. The warning should reflect that it's done voluntarily. (or maybe no warning)

https://hg.mozilla.org/mozilla-central/rev/9ce58b005cce