Implement keccak256 operator and softfork #933

	name: Build rust crate

	on:
	push:
	branches:
	- main
	- dev
	tags:
	- "**"
	pull_request:
	branches:
	- "**"

	jobs:
	build_crate:
	name: Crate
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up rusts
	uses: dtolnay/rust-toolchain@stable

	- name: fmt (stable)
	run: cargo +stable fmt -- --files-with-diff --check
	- name: clippy (stable)
	run: cargo +stable clippy
	- name: tests
	run: cargo test && cargo test --release
	- name: build
	run: cargo build --release
	- name: dry-run of `cargo publish`
	run: cargo publish --dry-run

	- name: publish to crates.io if tagged
	if: startsWith(github.event.ref, 'refs/tags')
	env:
	CARGO_REGISTRY_TOKEN: ${{ secrets.cargo_registry_token }}
	run: cargo publish

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