Merge pull request #353 from cuviper/move_index #403

Job	Run time
nostd_build (1.63.0, thumbv6m-none-eabi)	58s
nostd_build (stable, thumbv6m-none-eabi)	9s
clippy	16s
Check MSRV and minimal-versions	1m 17s
miri	4m 58s
tests (1.63.0)	1m 30s
tests (stable, arbitrary)	31s
tests (stable, quickcheck)	41s
tests (stable, rayon)	43s
tests (stable, rustc-rayon)	37s
tests (stable, serde)	40s
tests (stable, borsh)	31s
tests (stable, std)	34s
tests (beta)	37s
tests (nightly, test build benchmarks)	36s
Success	1s
	14m 39s

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