cargo-llvm-cov

```console $ cargo llvm-cov --help cargo-llvm-cov Wrapper for source based code coverage (-Z instrument-coverage).

Use -h for short descriptions and --help for more details.

USAGE: cargo llvm-cov [OPTIONS] [-- ...]

ARGS: ... Arguments for the test binary

OPTIONS: --json Export coverage data in "json" format

        If --output-path is not specified, the report will be printed to
        stdout.

        This internally calls `llvm-cov export -format=text`. See
        <https://llvm.org/docs/CommandGuide/llvm-cov.html#llvm-cov-export>
        for more.

    --lcov
        Export coverage data in "lcov" format.

        If --output-path is not specified, the report will be printed to
        stdout.

        This internally calls `llvm-cov export -format=lcov`. See
        <https://llvm.org/docs/CommandGuide/llvm-cov.html#llvm-cov-export>
        for more.

    --text
        Generate coverage reports in “text” format.

        If --output-path or --output-dir is not specified, the report will
        be printed to stdout.

        This internally calls `llvm-cov show -format=text`. See
        <https://llvm.org/docs/CommandGuide/llvm-cov.html#llvm-cov-show> for
        more.

    --html
        Generate coverage reports in "html" format. If --output-dir is not
        specified, the report will be generated in `target/llvm-cov`
        directory.

        This internally calls `llvm-cov show -format=html`. See
        <https://llvm.org/docs/CommandGuide/llvm-cov.html#llvm-cov-show> for
        more.

    --open
        Generate coverage reports in "html" format and open them in a
        browser after the operation.

        See --html for more.

    --summary-only
        Export only summary information for each file in the coverage data.

        This flag can only be used together with either --json or --lcov.

    --output-path <PATH>
        Specify a file to write coverage data into.

        This flag can only be used together with --json, --lcov, or --text.
        See --output-dir for --html and --open.

    --output-dir <DIRECTORY>
        Specify a directory to write coverage reports into (default to
        `target/llvm-cov`).

        This flag can only be used together with --text, --html, or --open.
        See also --output-path.

    --ignore-filename-regex <PATTERN>
        Skip source code files with file paths that match the given regular
        expression

    --doctests
        Including doc tests (unstable)

    --no-run
        Compile, but don't run tests (unstable)

    --no-fail-fast
        Run all tests regardless of failure

-p, --package <SPEC>...
        Package to run tests for

    --workspace
        Test all packages in the workspace [aliases: all]

    --exclude <SPEC>...
        Exclude packages from the test

    --release
        Build artifacts in release mode, with optimizations

    --features <FEATURES>...
        Space or comma separated list of features to activate

    --all-features
        Activate all available features

    --no-default-features
        Do not activate the `default` feature

    --target <TRIPLE>
        Build for the target triple

        When this option is used, coverage for proc-macro and build script
        will not be displayed because cargo does not pass RUSTFLAGS to them.

    --manifest-path <PATH>
        Path to Cargo.toml

-v, --verbose
        Use verbose output (-vv very verbose/build.rs output)

    --color <WHEN>
        Coloring [possible values: auto, always, never]

    --frozen
        Require Cargo.lock and cache are up to date

    --locked
        Require Cargo.lock is up to date

-Z <FLAG>...
        Unstable (nightly-only) flags to Cargo

-h, --help
        Prints help information

-V, --version
        Prints version information

```