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fix typo
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StackOverflowExcept1on committed Dec 27, 2024
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Resolves [#5777](https://github.com/paritytech/polkadot-sdk/issues/5777)

Previously `wasm-builder` used hacks such as `-Zbuild-std` (required `rust-src` component) and `RUSTC_BOOTSTRAP=1` to build WASM runtime without WASM features: `sign-ext`, `multivalue` and `reference-types` WASM features, but since Rust 1.84 (will be stable on 9 January, 2025) the situation has improved as there is new [`wasm32v1-none`](https://doc.rust-lang.org/beta/rustc/platform-support/wasm32v1-none.html) target that disables all "post-MVP" WASM features except `mutable-globals`.
Previously `wasm-builder` used hacks such as `-Zbuild-std` (required `rust-src` component) and `RUSTC_BOOTSTRAP=1` to build WASM runtime without WASM features: `sign-ext`, `multivalue` and `reference-types`, but since Rust 1.84 (will be stable on 9 January, 2025) the situation has improved as there is new [`wasm32v1-none`](https://doc.rust-lang.org/beta/rustc/platform-support/wasm32v1-none.html) target that disables all "post-MVP" WASM features except `mutable-globals`.

Wasm builder requires the following prerequisites for building the WASM binary:
- Rust >= 1.68 and Rust < 1.84:
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