🐎 Avoid unnecessary memory allocation #4864

Job	Run time
Test WebAssembly (stable, wasm32-unknown-emscripten)	3m 2s
wasi test (wasm32-wasi, ghcr.io/portable-network-archive/wasi-sdk-gh-actions:wasi-sdk-24)	1m 7s
Test WebAssembly (stable, wasm32-unknown-unknown)	1m 9s
wasi test (wasm32-wasi)	1m 27s
Test WebAssembly (stable, wasm32-wasi)	1m 50s
wasi test (wasm32-wasip1, ghcr.io/portable-network-archive/wasi-sdk-gh-actions:wasi-sdk-24)	2m 9s
Test WebAssembly (stable, wasm32-wasip1)	1m 47s
Test WebAssembly (beta, wasm32-unknown-emscripten)	2m 57s
Test WebAssembly (beta, wasm32-unknown-unknown)	1m 11s
Test WebAssembly (beta, wasm32-wasi)	1m 37s
Test WebAssembly (beta, wasm32-wasip1)	1m 45s
Test WebAssembly (nightly, wasm32-unknown-emscripten)	2m 56s
Test WebAssembly (nightly, wasm32-unknown-unknown)	1m 9s
Test WebAssembly (nightly, wasm32-wasi)	1m 54s
Test WebAssembly (nightly, wasm32-wasip1)	1m 34s
	27m 34s

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