Exectuion and optimization tracing harness for testing #6625

Job	Run time
Python (wheel build)	6m 46s
check-java-publish-build (aarch64-unknown-linux-gnu, runs-on=30583287017/runner=arm64-medium/imag...	2m 26s
Rust publish dry-run	31s
check-java-publish-build (x86_64-unknown-linux-gnu, runs-on=30583287017/runner=amd64-medium/image...	1m 25s
Compat check / compat-test	3m 42s
	14m 50s

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