cargo-run - Run the current package


cargo run [options] [-- args]


Run a binary or example of the local package.

All the arguments following the two dashes (--) are passed to the binary to run. If you're passing arguments to both Cargo and the binary, the ones after -- go to the binary, the ones before go to Cargo.


Package Selection

By default, the package in the current working directory is selected. The -p flag can be used to choose a different package in a workspace.

-p spec
--package spec
The package to run. See cargo-pkgid(1) for the SPEC format.

Target Selection

When no target selection options are given, cargo run will run the binary target. If there are multiple binary targets, you must pass a target flag to choose one. Or, the default-run field may be specified in the [package] section of Cargo.toml to choose the name of the binary to run by default.

--bin name
Run the specified binary.
--example name
Run the specified example.


可通过传递特性参数来控制启用哪些特性。如果没有给定要使用的特性, 则每个已选择的包都会自动使用default特性。

详见the features documentation

--features features
传递以空格或者逗号分隔的列表,其中给出要启用的特性。工作区成员的特性可通过包名/特性名的语法启用。 此参数可多次给定,以分别启用给定的特性。

Compilation Options

--target triple
为指定架构执行 Run 。默认情况下为本机的架构。三元组的格式为 <arch><sub>-<vendor>-<sys>-<abi>。执行 rustc --print target-list 可得到支持的构建目标列表。

也可通过build.target指定(config value)。

注意,指定该标志参数会使Cargo产生的构建工件放在与平常不同的目录下。 详情参见build cache

Run optimized artifacts with the release profile. See also the --profile option for choosing a specific profile by name.
--profile name
Run with the given profile. See the the reference for more details on profiles.
Run the target even if the selected Rust compiler is older than the required Rust version as configured in the project's rust-version field.

Output Options

--target-dir directory
用于存放生成的工件以及中间文件的目录。也可通过环境变量 config value指定。


Display Options

启用更加详细的输出。可两次使用来显示"非常详细"的输出,其中包含了诸如 依赖警告 以及 构建脚本输出 等额外的输出内容。 也可通过term.verbose指定。 config value.
不输出Cargo的日志信息。也可通过term.quiet指定。 config value.
--color when

  • auto (默认):自动检测终端是否支持带颜色的输出。
  • always:总显示带颜色的输出。
  • never:从不显示带颜色的输出。

也可通过term.color指定。 config value.

--message-format fmt
The output format for diagnostic messages. Can be specified multiple times and consists of comma-separated values. Valid values:

  • human (default): Display in a human-readable text format. Conflicts with short and json.
  • short: Emit shorter, human-readable text messages. Conflicts with human and json.
  • json: Emit JSON messages to stdout. See the reference for more details. Conflicts with human and short.
  • json-diagnostic-short: Ensure the rendered field of JSON messages contains the "short" rendering from rustc. Cannot be used with human or short.
  • json-diagnostic-rendered-ansi: Ensure the rendered field of JSON messages contains embedded ANSI color codes for respecting rustc's default color scheme. Cannot be used with human or short.
  • json-render-diagnostics: Instruct Cargo to not include rustc diagnostics in in JSON messages printed, but instead Cargo itself should render the JSON diagnostics coming from rustc. Cargo's own JSON diagnostics and others coming from rustc are still emitted. Cannot be used with human or short.

Manifest Options

--manifest-path path
这两个选项用于保证Cargo.lock文件是最新的。如果该锁文件不存在,或者不是最新的,Cargo 会报错退出。其中--frozen选项会阻止Cargo访问网络以检查锁文件是否是最新的。

这些选项,可用于保证Cargo.lock文件是最新的(比如持续集成的构建过程), 或用于避免联网。

禁止Cargo访问网络。如果不添加此选项,Cargo在需要访问网络但网络不可用的情况下,会报错 并停止工作。添加此选项后,Cargo会尽可能尝试不使用网络来工作。

注意,在此情况下可能会产生与联网状态下不同的依赖解析(Dependency Resolution)结果。 Cargo只会使用本地已下载的crate,即便本地的索引副本中表明可能有新版本crate。在离线前下载 所需依赖的方法,参见 cargo-fetch(1)

也可以通过 net.offline config value指定。

Common Options

If Cargo has been installed with rustup, and the first argument to cargo begins with +, it will be interpreted as a rustup toolchain name (such as +stable or +nightly). See the rustup documentation for more information about how toolchain overrides work.
Prints help information.
-Z flag
Unstable (nightly-only) flags to Cargo. Run cargo -Z help for details.

Miscellaneous Options

-j N
--jobs N
要并行运行的作业数量。也可通过 config value指定。 默认为CPU数量。


关于Cargo所读取的环境变量,可参见the reference


  • 0: Cargo命令执行成功
  • 101: Cargo命令未能完成.


  1. Build the local package and run its main target (assuming only one binary):

    cargo run
  2. Run an example with extra arguments:

    cargo run --example exname -- --exoption exarg1 exarg2


cargo(1), cargo-build(1)