Cleaned up checkValid interface #2

Job	Run time
cackle	1m 25s
cargo-deny (advisories)	45s
cargo-deny (bans licenses sources)	44s
fmt	15s
rust-check-git-rev-deps	22s
build (gcc, current)	1h 1m 54s
build (gcc, current, --check-test-tx-meta)	1h 2m 58s
build (gcc, next)	1h 3m 14s
build (gcc, next, --check-test-tx-meta)	1h 2m 6s
build (clang, current)	56m 53s
build (clang, current, --check-test-tx-meta)	48m 23s
build (clang, next)	55m 50s
build (clang, next, --check-test-tx-meta)	47m 1s
complete	1s
	7h 41m 51s

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