NAME

       cargo-login — Log in to a registry

SYNOPSIS

       cargo login [options] [token] [-- args]

DESCRIPTION

       This command will run a credential provider to save a token so that commands that require
       authentication, such as cargo-publish(1), will be automatically authenticated.

       All the arguments following the two dashes (--) are passed to the credential provider.

       For the default cargo:token credential provider, the token is saved in
       $CARGO_HOME/credentials.toml. CARGO_HOME defaults to .cargo in your home directory.

       If a registry has a credential-provider specified, it will be used. Otherwise, the
       providers from the config value registry.global-credential-providers will be attempted,
       starting from the end of the list.

       If the token argument is not specified, it will be read from stdin.

       The API token for crates.io may be retrieved from <https://crates.io/me>.

       Take care to keep the token secret, it should not be shared with anyone else.

OPTIONS

   Login Options
       --registry registry
           Name of the registry to use. Registry names are defined in Cargo config files
           <https://doc.rust-lang.org/cargo/reference/config.html>. If not specified, the default
           registry is used, which is defined by the registry.default config key which defaults
           to crates-io.

   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>.

   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. Save the token for the default registry:

               cargo login

        2. Save the token for a specific registry:

               cargo login --registry my-registry

SEE ALSO

       cargo(1), cargo-logout(1), cargo-publish(1)

                                                                                   CARGO-LOGIN(1)