Tribblix: manual page: cargo.1

CARGO(1) User Commands CARGO(1)

NAME

cargo -- The Rust package manager

SYNOPSIS

cargo [options] command [args]
cargo [options] --version
cargo [options] --list
cargo [options] --help
cargo [options] --explain code

DESCRIPTION

This program is a package manager and build tool for the Rust
language, available at <https://rust-lang.org>.

COMMANDS

Build Commands

cargo-bench(1)
Execute benchmarks of a package.

cargo-build(1)
Compile a package.

cargo-check(1)
Check a local package and all of its dependencies for errors.

cargo-clean(1)
Remove artifacts that Cargo has generated in the past.

cargo-doc(1)
Build a package's documentation.

cargo-fetch(1)
Fetch dependencies of a package from the network.

cargo-fix(1)
Automatically fix lint warnings reported by rustc.

cargo-run(1)
Run a binary or example of the local package.

cargo-rustc(1)
Compile a package, and pass extra options to the compiler.

cargo-rustdoc(1)
Build a package's documentation, using specified custom flags.

cargo-test(1)
Execute unit and integration tests of a package.

Manifest Commands

cargo-add(1)
Add dependencies to a Cargo.toml manifest file.

cargo-generate-lockfile(1)
Generate Cargo.lock for a project.

cargo-info(1)
Display information about a package in the registry. Default
registry is crates.io.

cargo-locate-project(1)
Print a JSON representation of a Cargo.toml file's location.

cargo-metadata(1)
Output the resolved dependencies of a package in machine-readable
format.

cargo-pkgid(1)
Print a fully qualified package specification.

cargo-remove(1)
Remove dependencies from a Cargo.toml manifest file.

cargo-tree(1)
Display a tree visualization of a dependency graph.

cargo-update(1)
Update dependencies as recorded in the local lock file.

cargo-vendor(1)
Vendor all dependencies locally.

cargo-verify-project(1)
Check correctness of crate manifest.

Package Commands

cargo-init(1)
Create a new Cargo package in an existing directory.

cargo-install(1)
Build and install a Rust binary.

cargo-new(1)
Create a new Cargo package.

cargo-search(1)
Search packages in crates.io.

cargo-uninstall(1)
Remove a Rust binary.

Publishing Commands

cargo-login(1)
Save an API token from the registry locally.

cargo-logout(1)
Remove an API token from the registry locally.

cargo-owner(1)
Manage the owners of a crate on the registry.

cargo-package(1)
Assemble the local package into a distributable tarball.

cargo-publish(1)
Upload a package to the registry.

cargo-yank(1)
Remove a pushed crate from the index.

General Commands

cargo-help(1)
Display help information about Cargo.

cargo-version(1)
Show version information.

OPTIONS

Special Options

-V, --version
Print version info and exit. If used with --verbose, prints extra
information.

--list
List all installed Cargo subcommands. If used with --verbose,
prints extra information.

--explain code
Run rustc --explain CODE which will print out a detailed
explanation of an error message (for example, E0004).

Display Options

-v, --verbose
Use verbose output. May be specified twice for "very verbose"
output which includes extra output such as dependency warnings
and build script output. May also be specified with the
term.verbose config value
<https://doc.rust-lang.org/cargo/reference/config.html>.

-q, --quiet
Do not print cargo log messages. May also be specified with the
term.quiet config value
<https://doc.rust-lang.org/cargo/reference/config.html>.

--color when
Control when colored output is used. Valid values:

+o auto (default): Automatically detect if color support is
available on the terminal.

+o always: Always display colors.

+o never: Never display colors.

May also be specified with the term.color config value
<https://doc.rust-lang.org/cargo/reference/config.html>.

Manifest Options

--locked
Asserts that the exact same dependencies and versions are used as
when the existing Cargo.lock file was originally generated. Cargo
will exit with an error when either of the following scenarios
arises:

+o The lock file is missing.

+o Cargo attempted to change the lock file due to a different
dependency resolution.

It may be used in environments where deterministic builds are
desired, such as in CI pipelines.

--offline
Prevents Cargo from accessing the network for any reason. Without
this flag, Cargo will stop with an error if it needs to access
the network and the network is not available. With this flag,
Cargo will attempt to proceed without the network if possible.

Beware that this may result in different dependency resolution
than online mode. Cargo will restrict itself to crates that are
downloaded locally, even if there might be a newer version as
indicated in the local copy of the index. See the cargo-fetch(1)
command to download dependencies before going offline.

May also be specified with the net.offline config value
<https://doc.rust-lang.org/cargo/reference/config.html>.

--frozen
Equivalent to specifying both --locked and --offline.

Common Options

+toolchain
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 <https://rust-lang.github.io/rustup/overrides.html>
for more information about how toolchain overrides work.

--config KEY=VALUE or PATH
Overrides a Cargo configuration value. The argument should be in
TOML syntax of KEY=VALUE, or provided as a path to an extra
configuration file. This flag may be specified multiple times.
See the command-line overrides section
<https://doc.rust-lang.org/cargo/reference/config.html#command-line-overrides>
for more information.

-C PATH
Changes the current working directory before executing any
specified operations. This affects things like where cargo looks
by default for the project manifest (Cargo.toml), as well as the
directories searched for discovering .cargo/config.toml, for
example. This option must appear before the command name, for
example cargo -C path/to/my-project build.

This option is only available on the nightly channel
<https://doc.rust-lang.org/book/appendix-07-nightly-rust.html>
and requires the -Z unstable-options flag to enable (see #10098
<https://github.com/rust-lang/cargo/issues/10098>).

-h, --help
Prints help information.

-Z flag
Unstable (nightly-only) flags to Cargo. Run cargo -Z help for
details.

ENVIRONMENT

See the reference
<https://doc.rust-lang.org/cargo/reference/environment-variables.html>
for details on environment variables that Cargo reads.

EXIT STATUS

+o 0: Cargo succeeded.

+o 101: Cargo failed to complete.

FILES

~/.cargo/
Default location for Cargo's "home" directory where it stores
various files. The location can be changed with the CARGO_HOME
environment variable.

$CARGO_HOME/bin/
Binaries installed by cargo-install(1) will be located here. If
using rustup <https://rust-lang.github.io/rustup/>, executables
distributed with Rust are also located here.

$CARGO_HOME/config.toml
The global configuration file. See the reference
<https://doc.rust-lang.org/cargo/reference/config.html> for more
information about configuration files.

.cargo/config.toml
Cargo automatically searches for a file named .cargo/config.toml
in the current directory, and all parent directories. These
configuration files will be merged with the global configuration
file.

$CARGO_HOME/credentials.toml
Private authentication information for logging in to a registry.

$CARGO_HOME/registry/
This directory contains cached downloads of the registry index
and any downloaded dependencies.

$CARGO_HOME/git/
This directory contains cached downloads of git dependencies.

Please note that the internal structure of the $CARGO_HOME directory
is not stable yet and may be subject to change.

EXAMPLES

1. Build a local package and all of its dependencies:

cargo build

2. Build a package with optimizations:

cargo build --release

3. Run tests for a cross-compiled target:

cargo test --target i686-unknown-linux-gnu

4. Create a new package that builds an executable:

cargo new foobar

5. Create a package in the current directory:

mkdir foo && cd foo
cargo init .

6. Learn about a command's options and usage:

cargo help clean

BUGS

See <https://github.com/rust-lang/cargo/issues> for issues.