NAME

       cargo-fetch — Fetch dependencies of a package from the network

SYNOPSIS

       cargo fetch [options]

DESCRIPTION

       If a Cargo.lock file is available, this command will ensure that all of the git dependencies and/or
       registry dependencies are downloaded and locally available. Subsequent Cargo commands will be able to run
       offline after a cargo fetch unless the lock file changes.

       If the lock file is not available, then this command will generate the lock file before fetching the
       dependencies.

       If --target is not specified, then all target dependencies are fetched.

       See also the cargo-prefetch <https://crates.io/crates/cargo-prefetch> plugin which adds a command to
       download popular crates. This may be useful if you plan to use Cargo without a network with the --offline
       flag.

OPTIONS

   Fetch options
       --target triple
           Fetch for the given architecture. The default is all architectures. The general format of the triple
           is <arch><sub>-<vendor>-<sys>-<abi>. Run rustc --print target-list for a list of supported targets.
           This flag may be specified multiple times.

           This may also be specified with the build.target config value
           <https://doc.rust-lang.org/cargo/reference/config.html>.

           Note that specifying this flag makes Cargo run in a different mode where the target artifacts are
           placed in a separate directory. See the build cache
           <https://doc.rust-lang.org/cargo/guide/build-cache.html> documentation for more details.

   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:

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

           •  always: Always display colors.

           •  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
       --manifest-path path
           Path to the Cargo.toml file. By default, Cargo searches for the Cargo.toml file in the current
           directory or any parent directory.

       --frozen, --locked
           Either of these flags requires that the Cargo.lock file is up-to-date. If the lock file is missing,
           or it needs to be updated, Cargo will exit with an error. The --frozen flag also prevents Cargo from
           attempting to access the network to determine if it is out-of-date.

           These may be used in environments where you want to assert that the Cargo.lock file is up-to-date
           (such as a CI build) or want to avoid network access.

       --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>.

   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

       •  0: Cargo succeeded.

       •  101: Cargo failed to complete.

EXAMPLES

        1. Fetch all dependencies:

               cargo fetch

SEE ALSO

       cargo(1), cargo-update(1), cargo-generate-lockfile(1)

                                                                                                  CARGO-FETCH(1)