only issue `logChecker` messages when necessary #19691

Job	Run time
build_make (ubuntu:25.10)	5m 6s
build_make (ubuntu:24.04)	4m 49s
build_cmake (ubuntu:25.10, true, true)	5m 41s
build_make (alpine:3.23)	5m 43s
build_cmake (alpine:3.23, false, false)	4m 20s
build_cmake (ubuntu:24.04, true, true)	5m 3s
	30m 42s

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