Compare these two:

https://build.chromium.org/p/tryserver.chromium.android/builders/linux_android_rel_ng/builds/177935

https://luci-milo.appspot.com/buildbot/tryserver.chromium.android/linux_android_rel_ng/177935

For the "blink_heap_unittests (with patch) on Android" step, buildbot provides "missing shard #0" link leading to https://chromium-swarm.appspot.com/user/task/3265c075e95d3d10 . That link is missing from Milo UI.

This is how the annotations look like:

@@@STEP_LOG_END@some shards did not complete: 0@@@
exit code (as seen by runtest.py): 241
@@@STEP_FAILURE@@@
@@@STEP_TEXT@@@@
@@@STEP_TEXT@crashed or hung@@@
@@@STEP_CURSOR@blink_heap_unittests (with patch) on Android@@@
step returned non-zero exit code: 241
@@@STEP_LINK@missing shard #0@https://chromium-swarm.appspot.com/user/task/3265c075e95d3d10@@@
@@@STEP_EXCEPTION@@@
@@@STEP_CLOSED@@@
 

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