# 使用 Homebrew, Nix 安装 cargo-careful

查看 cargo-careful 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。

## 安装

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

其他安装命令:

### macOS

- Homebrew (100%):

```sh
brew install cargo-careful
```

  证据: local Homebrew formula metadata

### Linux

- Nix (92%):

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

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

## 软件包事实

- **软件包键:** brew:cargo-careful
- **软件包管理器:** Homebrew
- **版本:** 0.4.10
- **来源摘要:** Execute Rust code carefully, with extra checking along the way
- **主页:** <https://github.com/RalfJung/cargo-careful>
- **仓库:** <https://github.com/RalfJung/cargo-careful>
- **已生成:** 2026-08-03T19:37:03+00:00

## 可执行文件

- cargo-careful (别名)

## 安装行为

- Bottle: 不可用

## 版本和新鲜度

- 页面生成时间: 2026-08-03
- 管理器版本: 0.4.10
## 项目历史与用法

cargo-careful is a Cargo subcommand for running Rust programs and tests with extra nightly-only runtime checks, a standard library built with debug assertions, and optional sanitizer support.

### 项目历史

Ralf Jung's cargo-careful repository and first crates.io release both appeared in September 2022. The README describes it as a way to run Rust code extra carefully by opting into checks that help detect undefined behavior.

The tool builds or uses a checked standard library and passes rustc flags that enable stricter runtime behavior, including pointer alignment and null checks, collection consistency checks, strict initialization checks, and extra const-evaluation UB checks. Later versions also document sanitizer support and Apple Main Thread Checker integration on Apple platforms.

### 采用历史

cargo-careful is more specialized than general debugging Cargo plugins, but it fills an important space between ordinary `cargo test` and exhaustive interpreters. Crates.io reports more than 169,000 downloads, while the input records Homebrew and Nix packaging.

Its author and positioning connect it to Rust's unsafe-code verification culture. The README explicitly compares it with Miri: cargo-careful is less exhaustive but faster, supports arbitrary system and C FFI calls, and works on code Miri may not be able to run.

### 使用方式

Users install it with `cargo install cargo-careful` and run commands such as `cargo +nightly careful test` or `cargo +nightly careful run`. The README says all `cargo test` and `cargo run` flags are supported and that a recent nightly toolchain is required.

On first use it may need the `rustc-src` rustup component to perform setup. It also honors common Rust flag sources such as `CARGO_ENCODED_RUSTFLAGS`, `RUSTFLAGS`, and Cargo's `build.rustflags`, and it sets a `cfg(careful)` configuration flag for conditional code.

### 为什么软件包爱好者会关心

cargo-careful matters to package nerds because it packages unstable compiler and standard-library checking behavior into a repeatable Cargo command. It gives library maintainers a way to add stronger runtime checking to test workflows without rewriting tests for a separate interpreter.

It is also a good example of Cargo as a safety-tool host: the package itself is small, but it coordinates rustup components, nightly rustc flags, standard-library rebuilding, sanitizers, and target-specific platform diagnostics.

### 时间线

- 2022-09-22: GitHub repository RalfJung/cargo-careful was created.
- 2022-09-22: cargo-careful 0.1.0 was published on crates.io.
- 2020s: README documented the relationship with Miri, nightly-only UB checks, sanitizer support, and Main Thread Checker integration.
- 2026-04-01: Version 0.4.10 was published.

### Related projects

- Miri is the related Rust interpreter/checker that the README recommends for more exhaustive undefined-behavior detection.
- rustup and the `rustc-src` component are involved in cargo-careful setup.
- Rust nightly compiler flags and sanitizer support are the underlying mechanisms cargo-careful coordinates.

### 来源

- GitHub repository API metadata: https://api.github.com/repos/RalfJung/cargo-careful
- Official README: https://github.com/RalfJung/cargo-careful#readme
- Package-manager adoption from source_facts.package-manager.
- crates.io API metadata and versions: https://crates.io/api/v1/crates/cargo-careful


## 安全说明

narrow executable package without higher-risk signals.

- **Geiger 风险:** 绿色 / 低
- narrow executable package without higher-risk signals

## 其他软件包管理器记录

- Nix - cargo-careful: normalized package name match | nixpkgs package indexes: pkgs/by-name/ca/cargo-careful/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1


## 相关链接

- [cargo-careful](https://pkg.so/zh-hans/pkg/cargo/cargo-careful/) - Same normalized package name exists in another local package ecosystem.

## Combined YAML source

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


## 来源

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