Callstacks in FindIt's task reports are unreadable:

- EXPECTED BEHAVIOR: logs from test runs include human-readable callstacks

- ACTUAL BEHAVIOR: callstacks in logs from test runs include only stack addresses


For example see:

- Overall FindIt report is here: https://findit-for-me.appspot.com/waterfall/flake/flake-culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyQwsSDEZsYWtlQ3VscHJpdCIxY2hyb21pdW0vODBlYzhlMmJmYWZlNDllNzdiZTI5OTZlN2FhOWM3MTNjNjg1M2FiMww

- Test-specific FindIt report is here: https://findit-for-me.appspot.com/waterfall/flake?key=ag9zfmZpbmRpdC1mb3ItbWVy1QELEhdNYXN0ZXJGbGFrZUFuYWx5c2lzUm9vdCKeAWNocm9taXVtLm1lbW9yeS9MaW51eCBDaHJvbWl1bSBPUyBBU2FuIExTYW4gVGVzdHMgKDEpLzI4OTI2L3NpbmdsZV9wcm9jZXNzX21hc2hfYnJvd3Nlcl90ZXN0cy9VMlZ6YzJsdmJsSmxjM1J2Y21WVVpYTjBMazFsYlc5eWVWQnlaWE56ZFhKbFRHOWhaSE5PYjNSQmJHeFVZV0p6DAsSE01hc3RlckZsYWtlQW5hbHlzaXMYAQw

- Results of FindIt task report are here: https://chromium-swarm.appspot.com/task?id=3fea225e0ca53c10&refresh=10&show_raw=1

- The FindIt task report seems to include a crash, but the callstack is unreadable:

Command: ./browser_tests --brave-new-test-launcher --test-launcher-bot-mode --cfi-diag=0 --enable-features=SingleProcessMash --override-use-software-gl-for-tests --test-launcher-print-test-stdio=always --test-launcher-batch-limit=1 --test-launcher-summary-output=/b/s/w/ioulZK7K/output.json --gtest_filter=SessionRestoreTest.MemoryPressureLoadsNotAllTabs --gtest_repeat=20 --test-launcher-retry-limit=0 --gtest_also_run_disabled_tests --no-sandbox
...
BrowserTestBase received signal: Segmentation fault. Backtrace:
#0 0x000000f75c21 (/b/s/w/ir/out/Release/browser_tests+0xf75c20)
#1 0x0000112ea76c (/b/s/w/ir/out/Release/browser_tests+0x112ea76b)
#2 0x000012a5b2d6 (/b/s/w/ir/out/Release/browser_tests+0x12a5b2d5)
#3 0x7f87d4cdccb0 (/lib/x86_64-linux-gnu/libc-2.19.so+0x36caf)
#4 0x0000066e13c8 (/b/s/w/ir/out/Release/browser_tests+0x66e13c7)
#5 0x000011e830f1 (/b/s/w/ir/out/Release/browser_tests+0x11e830f0)
#6 0x0000123fb875 (/b/s/w/ir/out/Release/browser_tests+0x123fb874)
#7 0x000012621811 (/b/s/w/ir/out/Release/browser_tests+0x12621810)
#8 0x00001261ea45 (/b/s/w/ir/out/Release/browser_tests+0x1261ea44)
#9 0x00001262334a (/b/s/w/ir/out/Release/browser_tests+0x12623349)
#10 0x0000059cef59 (/b/s/w/ir/out/Release/browser_tests+0x59cef58)
#11 0x0000059cf2d5 (/b/s/w/ir/out/Release/browser_tests+0x59cf2d4)
#12 0x00001123a928 (/b/s/w/ir/out/Release/browser_tests+0x1123a927)
#13 0x00001123ab55 (/b/s/w/ir/out/Release/browser_tests+0x1123ab54)
#14 0x000011350d65 (/b/s/w/ir/out/Release/browser_tests+0x11350d64)
#15 0x0000110bea86 (/b/s/w/ir/out/Release/browser_tests+0x110bea85)
#16 0x0000110bf779 (/b/s/w/ir/out/Release/browser_tests+0x110bf778)
#17 0x00001133c561 (/b/s/w/ir/out/Release/browser_tests+0x1133c560)
#18 0x0000110bd8e5 (/b/s/w/ir/out/Release/browser_tests+0x110bd8e4)
#19 0x00001115b89e (/b/s/w/ir/out/Release/browser_tests+0x1115b89d)
#20 0x0000114cc7ef (/b/s/w/ir/out/Release/browser_tests+0x114cc7ee)
#21 0x0000114cc3a8 (/b/s/w/ir/out/Release/browser_tests+0x114cc3a7)
#22 0x000012a58e24 (/b/s/w/ir/out/Release/browser_tests+0x12a58e23)
#23 0x00001163d536 (/b/s/w/ir/out/Release/browser_tests+0x1163d535)
#24 0x00001163a67f (/b/s/w/ir/out/Release/browser_tests+0x1163a67e)
#25 0x000005d0551c (/b/s/w/ir/out/Release/browser_tests+0x5d0551b)
#26 0x00000a6af748 (/b/s/w/ir/out/Release/browser_tests+0xa6af747)
#27 0x00000b998b8c (/b/s/w/ir/out/Release/browser_tests+0xb998b8b)
#28 0x00000a6aaf0f (/b/s/w/ir/out/Release/browser_tests+0xa6aaf0e)
#29 0x00000a6b8067 (/b/s/w/ir/out/Release/browser_tests+0xa6b8066)
#30 0x00000a6a3a80 (/b/s/w/ir/out/Release/browser_tests+0xa6a3a7f)
#31 0x000010ac8175 (/b/s/w/ir/out/Release/browser_tests+0x10ac8174)
#32 0x000018e9e223 (/b/s/w/ir/out/Release/browser_tests+0x18e9e222)
#33 0x000010ac3013 (/b/s/w/ir/out/Release/browser_tests+0x10ac3012)
#34 0x000012a57518 (/b/s/w/ir/out/Release/browser_tests+0x12a57517)
#35 0x0000114c6be6 (/b/s/w/ir/out/Release/browser_tests+0x114c6be5)
#36 0x00000704ab03 (/b/s/w/ir/out/Release/browser_tests+0x704ab02)
#37 0x00000704ce55 (/b/s/w/ir/out/Release/browser_tests+0x704ce54)
#38 0x00000704e227 (/b/s/w/ir/out/Release/browser_tests+0x704e226)
#39 0x000007075c97 (/b/s/w/ir/out/Release/browser_tests+0x7075c96)
#40 0x000007074ee6 (/b/s/w/ir/out/Release/browser_tests+0x7074ee5)
#41 0x000011519fdb (/b/s/w/ir/out/Release/browser_tests+0x11519fda)
#42 0x0000110282d2 (/b/s/w/ir/out/Release/browser_tests+0x110282d1)
#43 0x000012aebb06 (/b/s/w/ir/out/Release/browser_tests+0x12aebb05)
#44 0x0000110290d7 (/b/s/w/ir/out/Release/browser_tests+0x110290d6)
#45 0x000011027def (/b/s/w/ir/out/Release/browser_tests+0x11027dee)
#46 0x7f87d4cc7f45 (/lib/x86_64-linux-gnu/libc-2.19.so+0x21f44)
#47 0x000000f286ea (/b/s/w/ir/out/Release/browser_tests+0xf286e9)