add logging for conflict #12461

Job	Run time
build	1m 16s
python-format	6s
lint	1m 40s
addlicense	11s
python-lint	5s
test (macos)	4m 6s
test-default-collection	4m 17s
test-race	5m 52s
test (windows)	6m 49s
test (ubuntu)	4m 47s
test-sgcollect (macos-latest)	1m 14s
test-stats-definition-exporter (macos-latest)	46s
test-stats-definition-exporter (windows-latest)	1m 6s
test-sgcollect (windows-latest)	3m 40s
test-stats-definition-exporter (ubuntu-latest)	1m 16s
test-sgcollect (ubuntu-latest)	28s
	37m 39s

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