mark/reset for bytearrayinputstream #623

Job	Run time
rust_ci (macos-latest, beta)	1m 22s
rust_ci (windows-latest, stable)	2m 18s
rust_ci (ubuntu-latest, beta)	56s
rust_ci (macos-latest, stable)	59s
rust_ci (ubuntu-latest, stable)	57s
rust_ci (windows-latest, beta)	1m 52s
	8m 24s

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