Add crashtracker support for the sidecar

[bwoebi]

Incorporating the merged changes in libdatadog.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.76%. Comparing base (50ce39c) to head (c92d9b9).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3453      +/-   ##
==========================================
- Coverage   61.90%   61.76%   -0.15%     
==========================================
  Files         142      142              
  Lines       12895    12895              
  Branches     1689     1689              
==========================================
- Hits         7983     7964      -19     
- Misses       4153     4172      +19     
  Partials      759      759              

see 3 files with indirect coverage changes

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[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2025-11-04 20:45:28

Comparing candidate commit d62a9cc in PR branch bob/sidecar-crashtracker with baseline commit 50ce39c in branch master.

Found 7 performance improvements and 7 performance regressions! Performance is the same for 178 metrics, 2 unstable metrics.

scenario:MessagePackSerializationBench/benchMessagePackSerialization

• 🟥 execution_time [+3.175µs; +5.645µs] or [+3.002%; +5.336%]

scenario:MessagePackSerializationBench/benchMessagePackSerialization-opcache

• 🟥 execution_time [+7.640µs; +8.800µs] or [+7.300%; +8.407%]

scenario:PDOBench/benchPDOOverhead

• 🟩 execution_time [-62.398µs; -58.401µs] or [-23.612%; -22.099%]

scenario:PDOBench/benchPDOOverhead-opcache

• 🟩 execution_time [-58.288µs; -54.562µs] or [-22.445%; -21.010%]

scenario:PDOBench/benchPDOOverheadWithDBM

• 🟩 execution_time [-57.509µs; -52.967µs] or [-21.973%; -20.238%]

scenario:PDOBench/benchPDOOverheadWithDBM-opcache

• 🟩 execution_time [-57.737µs; -53.056µs] or [-22.276%; -20.470%]

scenario:PHPRedisBench/benchRedisOverhead

• 🟩 execution_time [-305.506µs; -271.430µs] or [-28.821%; -25.606%]

scenario:PHPRedisBench/benchRedisOverhead-opcache

• 🟩 execution_time [-283.315µs; -236.619µs] or [-26.124%; -21.818%]

scenario:SamplingRuleMatchingBench/benchRegexMatching1

• 🟥 execution_time [+55.026ns; +101.374ns] or [+4.586%; +8.449%]

scenario:SamplingRuleMatchingBench/benchRegexMatching2

• 🟥 execution_time [+91.644ns; +163.156ns] or [+7.886%; +14.040%]

scenario:SamplingRuleMatchingBench/benchRegexMatching3

• 🟥 execution_time [+100.080ns; +149.320ns] or [+8.584%; +12.807%]

scenario:SamplingRuleMatchingBench/benchRegexMatching4

• 🟥 execution_time [+74.089ns; +164.711ns] or [+6.274%; +13.948%]

scenario:SpanBench/benchOpenTelemetryAPI

• 🟥 mem_peak [+1.684MB; +1.693MB] or [+4.074%; +4.097%]

scenario:TraceSerializationBench/benchSerializeTrace

• 🟩 execution_time [-29.441µs; -18.759µs] or [-6.676%; -4.254%]