Cargo-nextest: 3x faster than cargo test, per-test isolation, first-class CI

# Home Source: [https://nexte.st/](https://nexte.st/) ## A next\-generation test runner for Rust Up to 3× faster than`cargo test`, with a modern interface, per\-test isolation, and first\-class CI support\. - **Clean, beautiful user interface** ---  See which tests passed and failed at a glance\. [Running tests](https://nexte.st/docs/running/) - **Up to 3x as fast as cargo test** --- Nextest uses a modern[execution model](https://nexte.st/docs/design/how-it-works/)for faster, more reliable test runs\. [Benchmarks](https://nexte.st/docs/benchmarks/) - **Powerful test selection** --- Use a sophisticated[expression language](https://nexte.st/docs/filtersets/)to select exactly the tests you need\. Filter by name, binary, platform, or any combination\. [Filtersets](https://nexte.st/docs/filtersets/) - **Identify misbehaving tests** --- Treat tests as cattle, not pets\. Detect and handle[slow tests](https://nexte.st/docs/features/slow-tests/)\. Loop over tests many times with[stress testing](https://nexte.st/docs/features/stress-tests/)\. [Slow tests and timeouts](https://nexte.st/docs/features/slow-tests/) - **Customize settings by test** --- Automatically[retry](https://nexte.st/docs/features/retries/)some tests, mark them as[heavy](https://nexte.st/docs/configuration/threads-required/), run them[serially](https://nexte.st/docs/configuration/test-groups/), and much more\. [Per\-test settings](https://nexte.st/docs/configuration/per-test-overrides/) - **Record, replay and rerun** --- [Record](https://nexte.st/docs/features/record-replay-rerun/)every test run\.[Replay](https://nexte.st/docs/features/record-replay-rerun/replay/)CI runs locally\.[Rerun](https://nexte.st/docs/features/record-replay-rerun/rerun/)failing tests\. Export[Perfetto traces](https://nexte.st/docs/features/record-replay-rerun/perfetto-chrome-traces/)for deep analysis\. [Record, replay, and rerun](https://nexte.st/docs/features/record-replay-rerun/) - **Designed for CI** --- [Archive](https://nexte.st/docs/ci-features/archiving/)and[partition](https://nexte.st/docs/ci-features/partitioning/)tests across multiple workers, export[JUnit XML](https://nexte.st/docs/machine-readable/junit/), and use[profiles](https://nexte.st/docs/configuration/#profiles)for different environments\. [Configuration profiles](https://nexte.st/docs/configuration/#profiles) - **Setup scripts** --- Run[setup scripts](https://nexte.st/docs/configuration/setup-scripts/)before tests start with per\-test scoping\. Initialize databases, start services, and prepare fixtures\. [Setup scripts](https://nexte.st/docs/configuration/setup-scripts/) - **An ecosystem of tools** --- Collect[test coverage](https://nexte.st/docs/integrations/test-coverage/)\. Do[mutation testing](https://nexte.st/docs/integrations/cargo-mutants/)\. Spin up[debuggers](https://nexte.st/docs/integrations/debuggers-tracers/)\. Observe system behavior with[DTrace and bpftrace probes](https://nexte.st/docs/integrations/usdt/)\. [Integrations](https://nexte.st/docs/integrations/) - **Cross\-platform** --- Runs on Linux, Mac, Windows, and other Unix\-like systems\. Download binaries or build it[from source](https://nexte.st/docs/installation/from-source/)\. [Pre\-built binaries](https://nexte.st/docs/installation/pre-built-binaries/) - **Open source, widely trusted** --- Powers Rust development at every scale, from independent open source projects to the world's largest tech companies\. [License \(Apache 2\.0\)](https://github.com/nextest-rs/nextest/blob/main/LICENSE-APACHE) - **State\-of\-the\-art, made with love** --- Nextest brings[infrastructure\-grade reliability](https://nexte.st/docs/design/why-process-per-test/)to test runners,[with*care*](https://nexte.st/docs/design/architecture/runner-loop/)about getting the details right\. [Sponsor on GitHub](https://github.com/sponsors/sunshowers) ## Quick start[¶](https://nexte.st/#quick-start) Install cargo\-nextest using the[pre\-built binaries](https://nexte.st/docs/installation/pre-built-binaries/), then run: Note Doctests are currently[not supported](https://github.com/nextest-rs/nextest/issues/16)because of limitations in stable Rust\. For now, run doctests in a separate step with`cargo test \-\-doc`\.