Findit identified the culprit r562882 with confidence 70.0% in the config "chromium.memory / Linux ASan LSan Tests (1)"
based on the flakiness trend:

https://findit-for-me.appspot.com/waterfall/flake?key=ag9zfmZpbmRpdC1mb3ItbWVyygELEhdNYXN0ZXJGbGFrZUFuYWx5c2lzUm9vdCKTAWNocm9taXVtLm1lbW9yeS9MaW51eCBBU2FuIExTYW4gVGVzdHMgKDEpLzQ2NTkyL3NlcnZpY2VzX3VuaXR0ZXN0cy9WMmx1Wkc5M1ZISmxaVU5zYVdWdWRGUmxjM1F1UkdWc1pYUmxWMmx1Wkc5M1JuSnZiVUZ1YjNSb1pYSkRiR2xsYm5SRWFYTmhiR3h2ZDJWawwLEhNNYXN0ZXJGbGFrZUFuYWx5c2lzGAEM


Automatically posted by the findit-for-me app (https://goo.gl/Ot9f7N).
Feedback is welcome! Please use component Tools>Test>FindIt>Flakiness

This was reverted already:

commit 8585b5468aaa36749984917e05b9034792eb8e83
Author: John Budorick <jbudorick@chromium.org>
Date: Fri Jun 01 06:03:38 2018

Revert "[libFuzzer] Add use_libfuzzer=true GN flag to linux_chromium_asan_rel_ng trybot."

This reverts commit e10ba490518329322a4bd1b7e57f65a44a197aa8.

Reason for revert: FindIt suspects this is responsible for   crbug.com/848278  

Original change's description:
> [libFuzzer] Add use_libfuzzer=true GN flag to linux_chromium_asan_rel_ng trybot.
> 
> This flag should not affect any non fuzz targets, but having it enabled would
> allow us to prevent some breakages, e.g. adding a fuzz target with unresolved
> GN dependencies. See https://crbug.com/845774#c4 for more context.
> 
> Depends on https://chromium-review.googlesource.com/c/chromium/src/+/1074830 and
> https://webrtc-review.googlesource.com/c/src/+/79187.
> 
> R=​dpranke@chromium.org, inferno@chromium.org
> 
> Bug: 640271,  646404  ,845774
> Change-Id: I3e96e9f15e1d0540a7667ea96059cf4d1b1a8eb8
> Reviewed-on: https://chromium-review.googlesource.com/1071875
> Commit-Queue: Max Moroz <mmoroz@chromium.org>
> Reviewed-by: Dirk Pranke <dpranke@chromium.org>
> Reviewed-by: Abhishek Arya <inferno@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#562882}

TBR=inferno@chromium.org,dpranke@chromium.org,mmoroz@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 640271,   646404  , 845774
Change-Id: I701f573168a99996560664efb842627ff9c1ea70
Reviewed-on: https://chromium-review.googlesource.com/1081972
Reviewed-by: John Budorick <jbudorick@chromium.org>
Reviewed-by: Max Moroz <mmoroz@chromium.org>
Commit-Queue: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#563545}
[modify] https://crrev.com/8585b5468aaa36749984917e05b9034792eb8e83/tools/mb/mb_config.pyl