Generator waterfall.flake.regression_range_analysis_pipeline.RegressionRangeAnalysisPipeline(*(u'ag9zfmZpbmRpdC1mb3ItbWVy3wELEhdNYXN0ZXJGbGFrZUFuYWx5c2lzUm9vdCKoAWNocm9taXVtLmxpbnV4L0xpbnV4IFRlc3RzIChkYmcpKDEpLzYzNTc0L3NpdGVfcGVyX3Byb2Nlc3NfY29udGVudF9icm93c2VydGVzdHMvUkhWdGNFRmpZMlZ6YzJsaWFXe... (350 bytes), **{})#65af9981e8c84373953c487d0af11736 raised exception. AttributeError: 'MasterFlakeAnalysis' object has no attribute 'algorithm_settings' (/base/data/home/apps/s~findit-for-me/waterfall-backend:a83bbc748.401996041239304446/first_party/pipeline_utils/appengine_third_party_pipeline_python_src_pipeline/pipeline.py:2434)
Traceback (most recent call last):
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:a83bbc748.401996041239304446/first_party/pipeline_utils/appengine_third_party_pipeline_python_src_pipeline/pipeline.py", line 2207, in evaluate
    yielded = pipeline_iter.send(next_value)
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:a83bbc748.401996041239304446/waterfall/flake/regression_range_analysis_pipeline.py", line 320, in run
    iterations_to_rerun)
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:a83bbc748.401996041239304446/waterfall/flake/regression_range_analysis_pipeline.py", line 273, in _RemoveStablePointsWithinRange
    algorithm_settings = analysis.algorithm_settings.get('swarming_rerun')
AttributeError: 'MasterFlakeAnalysis' object has no attribute 'algorithm_settings'

Fix:
analysis.algorithm_settings -> analysis.algorithm_parameters