cleanups #471

Job	Run time
cargo-c dynamic library	28s
Clippy	16s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-gnu)	37s
Clippy (--no-default-features --features="c-allocator")	18s
QEMU build & test (stable, ubuntu-latest, s390x-unknown-linux-gnu, s390x-linux-gnu-gcc, qemu-s390...	48s
Build and test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	37s
Clippy (--no-default-features --features="std,rust-allocator")	17s
QEMU build & test (stable, ubuntu-latest, i686-unknown-linux-gnu, i686-linux-gnu-gcc)	28s
Build and test (beta, ubuntu-latest, x86_64-unknown-linux-gnu)	48s
Build and test (stable, macos-latest, x86_64-apple-darwin)	1m 6s
Smoke-test fuzzing targets (ubuntu-20.04, default)	1m 49s
Build and test (stable, macos-14, aarch64-apple-darwin)	40s
Smoke-test fuzzing targets (ubuntu-20.04, c-allocator)	1m 48s
vanilla dynamic library	17s
Build and test (stable-x86_64-gnu, windows-2022, x86_64-pc-windows-gnu)	1m 27s
Miri	2m 52s
Smoke-test fuzzing targets (ubuntu-20.04, rust-allocator)	1m 46s
Smoke-test fuzzing targets (macos-14)	2m 17s
run bzip2-rs test suite (x86_64-unknown-linux-gnu)	23s
wasm32	25s
	19m 27s

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