fix: SHA-pin dtolnay/rust-toolchain action #14

	# SPDX-License-Identifier: PMPL-1.0-or-later
	name: Rust CI

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	permissions:
	contents: read

	jobs:
	test:
	name: Test
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5

	- name: Install Rust toolchain
	uses: dtolnay/rust-toolchain@4be9e76fd7c4901c61fb841f559994984270fce7 # stable
	with:
	toolchain: stable
	components: rustfmt, clippy

	- name: Cache cargo registry
	uses: Swatinem/rust-cache@779680da715d629ac1d338a641029a2f4372abb5 # v2

	- name: Check formatting
	run: cargo fmt -- --check

	- name: Run clippy
	run: cargo clippy --all-targets --all-features -- -D warnings

	- name: Build
	run: cargo build --verbose

	- name: Run tests
	run: cargo test --verbose

	- name: Build release
	run: cargo build --release --verbose

	- name: Check for warnings
	run: \|
	OUTPUT=$(cargo build --release 2>&1)
	if echo "$OUTPUT" \| grep -i "warning"; then
	echo "❌ Build produced warnings:"
	echo "$OUTPUT" \| grep -i "warning"
	exit 1
	fi
	echo "✅ Zero warnings"

	msrv:
	name: Check MSRV (1.85.0)
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5

	- name: Install Rust 1.85.0
	uses: dtolnay/rust-toolchain@4be9e76fd7c4901c61fb841f559994984270fce7 # stable
	with:
	toolchain: 1.85.0

	- name: Cache cargo registry
	uses: Swatinem/rust-cache@779680da715d629ac1d338a641029a2f4372abb5 # v2

	- name: Check build
	run: cargo check --all-features

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