For example (from https://chromium-swarm.appspot.com/task?id=3a317a6afed99910&refresh=10&show_raw=1):

Still waiting for the following processes to finish:
	".\interactive_ui_tests.exe" --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=ParamaterizedFullscreenControllerInteractiveTestInstance/ParamaterizedFullscreenControllerInteractiveTest.MouseLockSilentAfterTargetUnlock/0 --single_process --snapshot-output-dir="e:\b\s\w\iou2viy8" --test-launcher-bot-mode --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir9280_4968\results9280_24253\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iou2viy8\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir9280_4968\d9280_8590"
Still waiting for the following processes to finish:
	".\interactive_ui_tests.exe" --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=ParamaterizedFullscreenControllerInteractiveTestInstance/ParamaterizedFullscreenControllerInteractiveTest.MouseLockSilentAfterTargetUnlock/0 --single_process --snapshot-output-dir="e:\b\s\w\iou2viy8" --test-launcher-bot-mode --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir9280_4968\results9280_24253\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iou2viy8\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir9280_4968\d9280_8590"
[1202/112143.770:ERROR:always_on_top_window_killer_win.cc(123)] Screen snapshot saved to file: "e:\b\s\w\iou2viy8\ss_20171202112143_702.png" after timeout of test process with command line: "".\interactive_ui_tests.exe" --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=ParamaterizedFullscreenControllerInteractiveTestInstance/ParamaterizedFullscreenControllerInteractiveTest.MouseLockSilentAfterTargetUnlock/0 --single_process --snapshot-output-dir="e:\b\s\w\iou2viy8" --test-launcher-bot-mode --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir9280_4968\results9280_24253\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iou2viy8\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir9280_4968\d9280_8590"".
[ RUN      ] ParamaterizedFullscreenControllerInteractiveTestInstance/ParamaterizedFullscreenControllerInteractiveTest.MouseLockSilentAfterTargetUnlock/0
[10500:8776:1202/112113.777:WARNING:chrome_browser_main_win.cc(613)] Command line too long for RegisterApplicationRestart:  --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=ParamaterizedFullscreenControllerInteractiveTestInstance/ParamaterizedFullscreenControllerInteractiveTest.MouseLockSilentAfterTargetUnlock/0 --single_process --snapshot-output-dir="e:\b\s\w\iou2viy8" --test-launcher-bot-mode --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir9280_4968\results9280_24253\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iou2viy8\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir9280_4968\d9280_8590" --disable-offline-auto-reload --no-first-run --no-default-browser-check --enable-logging=stderr --disable-default-apps --wm-window-animations-disabled --disable-component-update --test-type=browser --force-color-profile=srgb --disable-zero-browsers-open-for-tests --ipc-connection-timeout=30 --allow-file-access-from-files --dom-automation --log-gpu-control-list-decisions --disable-backgrounding-occluded-windows --disable-gl-drawing-for-tests --override-use-software-gl-for-tests --force-color-profile=srgb --disable-compositor-ukm-for-tests --enable-features=TestFeatureForBrowserTest1 --disable-features=NetworkPrediction,TestFeatureForBrowserTest2,ViewsSimplifiedFullscreenUI --flag-switches-begin --flag-switches-end --restore-last-session about:blank
[10500:8776:1202/112113.978:INFO:CONSOLE(31)] "lockMouse1()", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (31)
[10500:8776:1202/112113.979:INFO:CONSOLE(42)] "lock success", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (42)
[10500:11920:1202/112113.980:WARNING:embedded_test_server.cc(228)] Request not handled. Returning 404: /favicon.ico
[10500:8776:1202/112113.981:INFO:CONSOLE(106)] "unlockMouse()", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (106)
[10500:8776:1202/112113.983:INFO:CONSOLE(35)] "lock failed", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (35)
[10500:8776:1202/112113.983:INFO:CONSOLE(31)] "lockMouse1()", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (31)
[10500:8776:1202/112113.984:INFO:CONSOLE(42)] "lock success", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (42)
[10500:8776:1202/112113.984:INFO:CONSOLE(106)] "unlockMouse()", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (106)
[10500:8776:1202/112113.985:INFO:CONSOLE(35)] "lock failed", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (35)
[10500:8776:1202/112113.985:INFO:CONSOLE(93)] "delayedLockMouse1()", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (93)
[10500:8776:1202/112114.996:INFO:CONSOLE(31)] "lockMouse1()", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (31)
[10500:8776:1202/112114.998:INFO:CONSOLE(42)] "lock success", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (42)
[10500:8776:1202/112114.998:INFO:CONSOLE(31)] "lockMouse1()", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (31)
[10500:8776:1202/112114.998:INFO:CONSOLE(35)] "lock failed", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (35)
[10500:8776:1202/112114.998:INFO:CONSOLE(35)] "lock failed", source: http://127.0.0.1:64813/fullscreen_mouselock/fullscreen_mouselock.html (35)
[348/364] ParamaterizedFullscreenControllerInteractiveTestInstance/ParamaterizedFullscreenControllerInteractiveTest.MouseLockSilentAfterTargetUnlock/0 (TIMED OUT)