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Fix runtime null contracts and standard stream initialization #798

	name: coverage

	on: [push]
	jobs:
	test:
	name: coverage
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v7

	- name: Cache cargo
	uses: actions/cache@v6
	with:
	path: ~/.cargo
	key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
	restore-keys: ${{ runner.os }}-cargo

	- name: Cache cargo build
	uses: actions/cache@v6
	with:
	path: target
	key: ${{ runner.os }}-stable-coverage-build-target-${{ hashFiles('**/Cargo.lock') }}
	restore-keys: ${{ runner.os }}-stable-coverage-build-target-

	- name: Install cargo-llvm-cov
	uses: taiki-e/install-action@cargo-llvm-cov

	- name: Generate code coverage
	run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info

	- name: Upload to codecov.io
	uses: codecov/codecov-action@v7
	with:
	files: lcov.info
	fail_ci_if_error: true
	token: ${{ secrets.CODECOV_TOKEN }}