# Install cargo-msrv with Homebrew, Nix, pacman

Find the minimum supported Rust version (MSRV) for your project. Version 0.19.3 via Homebrew; verified 2026-06-13. Also installable with nix: nix profile install nixpkgs#cargo-msrv.

## Install

```sh
sudo av install brew:cargo-msrv
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install cargo-msrv
```

  Evidence: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#cargo-msrv
```

  Evidence: nixpkgs package indexes: pkgs/by-name/ca/cargo-msrv/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

- pacman (92%):

```sh
sudo pacman -S cargo-msrv
```

  Evidence: Arch Linux sync databases: cargo-msrv from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

## Package facts

- **Package key:** brew:cargo-msrv
- **Package manager:** Homebrew
- **Version:** 0.19.3
- **Source summary:** Find the minimum supported Rust version (MSRV) for your project
- **Homepage:** <https://foresterre.github.io/cargo-msrv>
- **Repository:** <https://github.com/foresterre/cargo-msrv>
- **Last updated:** 2026-06-13T01:03:31+02:00
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- cargo-msrv (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 0.19.3
## Project history and usage

cargo-msrv helps find, verify, list, show, and set a Rust crate's minimum supported Rust version. Its README defines MSRV as the earliest Rust version supported by a project and documents rustup-backed compatibility checks.

### Project history

The crate first appeared on crates.io in October 2019 as version 0.0.0. The official README includes a short history saying cargo-msrv was born from the desire to find the MSRV for a Rust package, and later added tools such as cargo msrv verify.

### Adoption history

The tool tracks Rust packaging practice around package.rust-version, added to Cargo for Rust 1.56, while retaining package.metadata.msrv for older MSRVs. It is packaged by Homebrew, Nix, and Arch according to the input facts, and crates.io reported 486,985 downloads when checked on 2026-06-30.

### How it is used

Users run cargo msrv find to search for a compatible Rust version, cargo msrv verify to test the declared MSRV, and cargo msrv list or show to inspect author-specified MSRV values in Cargo manifests and dependencies.

### Why package nerds care

It matters for package maintainers because MSRV is part of a Rust crate's compatibility contract. cargo-msrv turns that contract into a runnable check for local development and CI.

### Timeline

- 2019: First crates.io release 0.0.0.
- 2021: Rust 1.56 made package.rust-version available in Cargo manifests, which cargo-msrv's docs recommend for declared MSRV.
- 2026: Crates.io latest version 0.19.3 and Homebrew stable version 0.19.3.

### Related projects

- Related projects and concepts include Cargo manifests, rustup toolchains, Rust release metadata, and the Cargo package.rust-version field.

### Sources

- <https://api.github.com/repos/foresterre/cargo-msrv>
- <https://github.com/foresterre/cargo-msrv>
- <https://gribnau.dev/cargo-msrv>
- <https://crates.io/api/v1/crates/cargo-msrv>
- <https://formulae.brew.sh/api/formula/cargo-msrv.json>


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals


## Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.


## Configuration files

- Unix: Cargo.toml
## Other Package-Manager Records

- Nix - cargo-msrv: normalized package name match | nixpkgs package indexes: pkgs/by-name/ca/cargo-msrv/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- pacman - cargo-msrv - 0.19.3-2: normalized package name match | Arch Linux sync databases: cargo-msrv from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | Find the minimum supported Rust version (MSRV) for your project | https://github.com/foresterre/cargo-msrv


## Combined YAML source

View the package source record on GitHub. [combined/cargo-msrv.yml](https://github.com/mxcl/pkgdb/blob/main/combined/cargo-msrv.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated configuration and credential file locations
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph