Building the product · Independent · 26 Oct 2026

nextest-rs/nextest

A next-generation test runner for Rust.

← Building the product
Nextest: fast Rust test runner. Runs tests in parallel and isolates each one.
Verified26 Oct 2026

Radar check

What we found when we opened it. Every bar is one fact, with its date.

Alive100

Last code pushed 26 Oct 2026, the same day before this check.

Releases100

Latest release cargo-nextest-0.9.149 on 20 Oct 2026.

Maturity70

Public since February 2022, a little over 4 years.

Adoption71

3,367 stars and 179 forks.

Activity85

200 commits and 6 new issues in the last 90 days.

Community100

109 contributors. 149 pull requests merged in 90 days.

Security80

A security policy says how to report a problem. No published security advisories.

Licence Apache-2.0: permissive: use it for anything, keep the noticeSetup effort 1 of 5Payoff 5 of 5
How the bars are scored
  • Alive. Days since the last code push: a week or less 100, a month 90, three months 70, six months 50, a year 30, eighteen months 15, older 0.
  • Releases. Age of the latest GitHub release, on a similar scale; no bar when the project publishes no releases.
  • Maturity. Age of the project: eight years 100, five 90, three 70, two 55, one 40, six months 25, younger 10.
  • Adoption. Stars on a log scale: 100,000 stars is 100, 10,000 is 80, 1,000 is 60, 100 is 40.
  • Activity. Commits in the last 90 days: 300 or more 100, 100 85, 30 65, 10 45, any 25.
  • Community. People who have contributed: 100 or more 100, 30 80, 10 60, 5 40, 2 25, one 10.
  • Security. A published security policy 80, none 40; published advisories are listed, not scored.

Checked by Repo Radar on 26 Oct 2026 from the repository on GitHub.

In simple English

Writing code means running tests to check for mistakes. The standard tool included with Rust runs these tests one after the other. This new tool runs many tests at the same time on all your computer cores. It finishes much faster and catches flaky tests that pass sometimes and fail other times. It is free to use and drops into your workflow with a single command change.

What it is

Cargo-nextest (a command-line tool that replaces the default cargo test command for Rust projects) is a faster test runner. It runs each test in its own isolated process to prevent them from interfering with one another.

What it is good for

Solo builders writing Rust who want their test suite to finish in seconds instead of minutes.

Stars3.4k
LicenceApache-2.0
Latestcargo-nextest-0.9.149 (2026-10-20)checked 26 Oct 2026
Last code change2026-10-26
Written inRust
Setup effort
1 / 5
Payoff
5 / 5
Good
  • Runs tests much faster by using all available computer cores at once.
  • Isolates each test in its own process so one broken test cannot corrupt another.
  • Outputs clear failure summaries and supports standard JUnit reporting formats for continuous integration.
Watch for
  • Requires an existing Rust project set up with Cargo.
  • Some older test suites that rely on shared global state may need adjustments to pass when run in parallel.
  • Requires a modern Rust toolchain to build from source if not installed via precompiled binaries.
Replaces

The standard cargo test command built into the Rust toolchain.

Works well with

Cargo (the standard package manager and build tool for Rust).

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Install
cargo install cargo-nextest

Independent: reviewed for Repo Radar outside the daily editions. Every independent repository

On Stack Radar: Build & Ship › Testing & Quality › Code Testing.

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