[DRAFT] Add subsystem metadata on log messages #3654

Job	Run time
compile-binaries (buildjet-2vcpu-ubuntu-1804, x86_64-unknown-linux-gnu)	1m 57s
build-and-test (true, 14, ubuntu-latest)	3m 57s
compile-binaries (buildjet-2vcpu-ubuntu-1804, aarch64-unknown-linux-gnu, -C linker=aarch64-linux-...	1m 52s
build-docs	48s
build-and-test (true, 14, macos-latest)	3m 53s
compile-binaries (macos-latest, x86_64-apple-darwin)	1m 53s
build-and-test (true, 14, windows-latest)	3m 40s
lint-and-prune	1m 0s
compile-binaries (macos-latest, aarch64-apple-darwin)	2m 15s
build-and-test (true, 16, ubuntu-latest)	3m 50s
build-and-test (true, 16, macos-latest)	3m 43s
compile-binaries (windows-latest, x86_64-pc-windows-msvc)	2m 2s
build-and-test (true, 16, windows-latest)	3m 44s
build-and-test (true, 18, ubuntu-latest)	3m 43s
build-and-test (true, 18, macos-latest)	3m 58s
build-and-test (true, 18, windows-latest)	3m 42s
build-and-test (true, 20, ubuntu-latest)	3m 46s
build-and-test (true, 20, macos-latest)	4m 0s
build-and-test (true, 20, windows-latest)	3m 40s
build-and-test (ubuntu-latest, 20, false)	3m 38s
features-tests / test	3m 31s
stress-tests / stress-test	2m 35s
stress-tests-reuse-context / stress-test	3m 25s
test-npm-init	0s
	1h 10m 32s

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