allocator infrastructure #234

Job	Run time
Miri	1m 19s
Clippy	2m 29s
QEMU build & test (stable, ubuntu-latest, s390x-unknown-linux-gnu, s390x-linux-gnu-gcc, qemu-s390...	43s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-gnu)	15s
Clippy (--no-default-features --features="c-allocator")	33s
QEMU build & test (stable, ubuntu-latest, i686-unknown-linux-gnu, i686-linux-gnu-gcc)	23s
Build and test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	18s
Clippy (--no-default-features --features="rust-allocator")	32s
wasm32	19s
Build and test (beta, ubuntu-latest, x86_64-unknown-linux-gnu)	17s
Build and test (stable, macos-latest, x86_64-apple-darwin)	19s
Build and test (stable, macos-14, aarch64-apple-darwin)	16s
Build and test (stable-x86_64-gnu, windows-2022, x86_64-pc-windows-gnu)	23s
	8m 6s

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