cargo-login - Save an API token from the registry locally
cargo login [options] [token]
This command will save the API token to disk so that commands that
require authentication, such as cargo-publish(1), will be
automatically authenticated. The token is saved in
$CARGO_HOME/credentials.toml. CARGO_HOME defaults to
.cargo in your home directory.
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.
--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.
-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
No output printed to stdout.
--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>.
+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.
-h, --help
Prints help information.
-Z flag
Unstable (nightly-only) flags to Cargo. Run cargo -Z
help for details.
See the reference
<https://doc.rust-lang.org/cargo/reference/environment-variables.html>
for details on environment variables that Cargo reads.
•0: Cargo succeeded.
•101: Cargo failed to complete.
1.Save the API token to disk: