Implement --diff-args #2175

Job	Run time
Clippy	58s
Rustfmt	14s
Integration tests (macos-latest)	1m 55s
Code coverage	3m 14s
Integration tests (ubuntu-latest)	2m 13s
Unit tests (macos-latest, aarch64-apple-darwin, false)	2m 50s
Unit tests (macos-12, x86_64-apple-darwin, false)	3m 24s
Unit tests (windows-latest, x86_64-pc-windows-msvc, false)	5m 8s
Unit tests (ubuntu-latest, x86_64-unknown-linux-gnu, false)	2m 37s
Unit tests (ubuntu-latest, x86_64-unknown-linux-musl, true)	3m 17s
Unit tests (ubuntu-latest, i686-unknown-linux-gnu, true)	5m 26s
Unit tests (ubuntu-latest, arm-unknown-linux-gnueabihf, true)	3m 14s
Unit tests (ubuntu-latest, aarch64-unknown-linux-gnu, true)	3m 13s
	37m 43s

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