Cut pre.4 prereleases #62

Job	Run time
cross (1.72.0, aarch64-unknown-linux-gnu, default)	46s
cross (1.72.0, powerpc-unknown-linux-gnu, default)	56s
minimal-versions	0s
cross (stable, aarch64-unknown-linux-gnu, default)	41s
cross (stable, powerpc-unknown-linux-gnu, default)	43s
set-msrv / set-msrv	2s
build (1.72.0, thumbv7em-none-eabi)	21s
build (1.72.0, wasm32-unknown-unknown)	23s
macos (1.72.0)	29s
windows (x86_64-pc-windows-gnu, 1.72.0)	1m 5s
build (1.72.0, loongarch64-unknown-linux-gnu)	23s
macos (stable)	30s
linux (x86_64-unknown-linux-gnu, 1.72.0)	38s
windows (x86_64-pc-windows-gnu, stable)	54s
build (stable, thumbv7em-none-eabi)	23s
linux (x86_64-unknown-linux-gnu, stable)	32s
build (stable, wasm32-unknown-unknown)	23s
build (stable, loongarch64-unknown-linux-gnu)	26s
	9m 35s

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