```console $ cargo llvm-cov --help cargo-llvm-cov Cargo subcommand to easily use LLVM source-based code coverage (-C instrument-coverage).

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

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

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 report 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 report in "html" format

        If --output-dir is not specified, the report will be generated in `target/llvm-cov/html`
        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 report into (default to `target/llvm-cov`).

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

    --failure-mode <any|all>
        Fail if `any` or `all` profiles cannot be merged (default to `any`)

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

    --hide-instantiations
        Hide instantiations from report

    --no-cfg-coverage
        Unset cfg(coverage)

    --no-report
        Run tests, but don't generate coverage report

    --fail-under-lines <MIN>
        Exit with a status of 1 if the total line coverage is less than MIN percent

    --show-missing-lines
        Show lines with no coverage

    --doctests
        Including doc tests (unstable)

        This flag is unstable. See <https://github.com/taiki-e/cargo-llvm-cov/issues/2> for
        more.

    --no-run
        Generate coverage report without running tests

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

-q, --quiet
        Display one character per test instead of one line

    --lib
        Test only this package's library unit tests

    --bin <NAME>
        Test only the specified binary

    --bins
        Test all binaries

    --example <NAME>
        Test only the specified example

    --examples
        Test all examples

    --test <NAME>
        Test only the specified test target

    --tests
        Test all tests

    --bench <NAME>
        Test only the specified bench target

    --benches
        Test all benches

    --all-targets
        Test all targets

    --doc
        Test only this library's documentation (unstable)

        This flag is unstable because it automatically enables --doctests flag. See
        <https://github.com/taiki-e/cargo-llvm-cov/issues/2> for more.

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

    --workspace
        Test all packages in the workspace

        [aliases: all]

    --exclude <SPEC>
        Exclude packages from both the test and report

    --exclude-from-test <SPEC>
        Exclude packages from the test (but not from the report)

    --exclude-from-report <SPEC>
        Exclude packages from the report (but not from the test)

-j, --jobs <N>
        Number of parallel jobs, defaults to # of CPUs

    --release
        Build artifacts in release mode, with optimizations

    --profile <PROFILE-NAME>
        Build artifacts with the specified profile

    --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.

-v, --verbose
        Use verbose output

        Use -vv (-vvv) to propagate verbosity to cargo.

    --color <WHEN>
        Coloring

        [possible values: auto, always, never]

    --remap-path-prefix
        Use --remap-path-prefix for workspace root

        Note that this does not fully compatible with doctest.

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

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

    --locked
        Require Cargo.lock is up to date

    --offline
        Run without accessing the network

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

-h, --help
        Print help information

-V, --version
        Print version information

SUBCOMMANDS: run Run a binary or example and generate coverage report show-env Output the environment set by cargo-llvm-cov to build Rust projects clean Remove artifacts that cargo-llvm-cov has generated in the past nextest Run tests with cargo nextest help Print this message or the help of the given subcommand(s) ```