NAME

       cargo-rustdoc — Build a package’s documentation, using specified custom flags

SYNOPSIS

       cargo rustdoc [options] [-- args]

DESCRIPTION

       The specified target for the current package (or package specified by -p if provided) will
       be documented with the specified args being passed to the final rustdoc invocation.
       Dependencies will not be documented as part of this command. Note that rustdoc will still
       unconditionally receive arguments such as -L, --extern, and --crate-type, and the
       specified args will simply be added to the rustdoc invocation.

       See <https://doc.rust-lang.org/rustdoc/index.html> for documentation on rustdoc flags.

       This command requires that only one target is being compiled when additional arguments are
       provided. If more than one target is available for the current package the filters of
       --lib, --bin, etc, must be used to select which target is compiled.

       To pass flags to all rustdoc processes spawned by Cargo, use the RUSTDOCFLAGS environment
       variable <https://doc.rust-lang.org/cargo/reference/environment-variables.html> or the
       build.rustdocflags config value <https://doc.rust-lang.org/cargo/reference/config.html>.

OPTIONS

   Documentation Options
       --open
           Open the docs in a browser after building them. This will use your default browser
           unless you define another one in the BROWSER environment variable or use the
           doc.browser <https://doc.rust-lang.org/cargo/reference/config.html#docbrowser>
           configuration option.

   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 document. See cargo-pkgid(1) for the SPEC format.

   Target Selection
       When no target selection options are given, cargo rustdoc will document all binary and
       library targets of the selected package. The binary will be skipped if its name is the
       same as the lib target. Binaries are skipped if they have required-features that are
       missing.

       Passing target selection flags will document only the specified targets.

       Note that --bin, --example, --test and --bench flags also support common Unix glob
       patterns like *, ? and []. However, to avoid your shell accidentally expanding glob
       patterns before Cargo handles them, you must use single quotes or double quotes around
       each glob pattern.

       --lib
           Document the package’s library.

       --bin name…
           Document the specified binary. This flag may be specified multiple times and supports
           common Unix glob patterns.

       --bins
           Document all binary targets.

       --example name…
           Document the specified example. This flag may be specified multiple times and supports
           common Unix glob patterns.

       --examples
           Document all example targets.

       --test name…
           Document the specified integration test. This flag may be specified multiple times and
           supports common Unix glob patterns.

       --tests
           Document all targets in test mode that have the test = true manifest flag set. By
           default this includes the library and binaries built as unittests, and integration
           tests. Be aware that this will also build any required dependencies, so the lib target
           may be built twice (once as a unittest, and once as a dependency for binaries,
           integration tests, etc.). Targets may be enabled or disabled by setting the test flag
           in the manifest settings for the target.

       --bench name…
           Document the specified benchmark. This flag may be specified multiple times and
           supports common Unix glob patterns.

       --benches
           Document all targets in benchmark mode that have the bench = true manifest flag set.
           By default this includes the library and binaries built as benchmarks, and bench
           targets. Be aware that this will also build any required dependencies, so the lib
           target may be built twice (once as a benchmark, and once as a dependency for binaries,
           benchmarks, etc.). Targets may be enabled or disabled by setting the bench flag in the
           manifest settings for the target.

       --all-targets
           Document all targets. This is equivalent to specifying --lib --bins --tests --benches
           --examples.

   Feature Selection
       The feature flags allow you to control which features are enabled. When no feature options
       are given, the default feature is activated for every selected package.

       See the features documentation
       <https://doc.rust-lang.org/cargo/reference/features.html#command-line-feature-options> for
       more details.

       -F features, --features features
           Space or comma separated list of features to activate. Features of workspace members
           may be enabled with package-name/feature-name syntax. This flag may be specified
           multiple times, which enables all specified features.

       --all-features
           Activate all available features of all selected packages.

       --no-default-features
           Do not activate the default feature of the selected packages.

   Compilation Options
       --target triple
           Document for the given architecture. The default is the host architecture. 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.

       -r, --release
           Document optimized artifacts with the release profile. See also the --profile option
           for choosing a specific profile by name.

       --profile name
           Document with the given profile. See the reference
           <https://doc.rust-lang.org/cargo/reference/profiles.html> for more details on
           profiles.

       --timings=fmts
           Output information how long each compilation takes, and track concurrency information
           over time. Accepts an optional comma-separated list of output formats; --timings
           without an argument will default to --timings=html. Specifying an output format
           (rather than the default) is unstable and requires -Zunstable-options. Valid output
           formats:

           •  html (unstable, requires -Zunstable-options): Write a human-readable file
               cargo-timing.html to the target/cargo-timings directory with a report of the
               compilation. Also write a report to the same directory with a timestamp in the
               filename if you want to look at older runs. HTML output is suitable for human
               consumption only, and does not provide machine-readable timing data.

           •  json (unstable, requires -Zunstable-options): Emit machine-readable JSON
               information about timing information.

   Output Options
       --target-dir directory
           Directory for all generated artifacts and intermediate files. May also be specified
           with the CARGO_TARGET_DIR environment variable, or the build.target-dir config value
           <https://doc.rust-lang.org/cargo/reference/config.html>. Defaults to target in the
           root of the workspace.

   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>.

       --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
               <https://doc.rust-lang.org/cargo/reference/external-tools.html#json-messages> 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 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
           Path to the Cargo.toml file. By default, Cargo searches for the Cargo.toml file in the
           current directory or any parent directory.

       --ignore-rust-version
           Ignore rust-version specification in packages.

       --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:

           •  The lock file is missing.

           •  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.

   Miscellaneous Options
       -j N, --jobs N
           Number of parallel jobs to run. May also be specified with the build.jobs config value
           <https://doc.rust-lang.org/cargo/reference/config.html>. Defaults to the number of
           logical CPUs. If negative, it sets the maximum number of parallel jobs to the number
           of logical CPUs plus provided value. If a string default is provided, it sets the
           value back to defaults. Should not be 0.

       --keep-going
           Build as many crates in the dependency graph as possible, rather than aborting the
           build on the first one that fails to build.

           For example if the current package depends on dependencies fails and works, one of
           which fails to build, cargo rustdoc -j1 may or may not build the one that succeeds
           (depending on which one of the two builds Cargo picked to run first), whereas cargo
           rustdoc -j1 --keep-going would definitely run both builds, even if the one run first
           fails.

       --output-format
           The output type for the documentation emitted. Valid values:

           •  html (default): Emit the documentation in HTML format.

           •  json: Emit the documentation in the experimental JSON format
               <https://doc.rust-lang.org/nightly/nightly-rustc/rustdoc_json_types>.

           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.

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. Build documentation with custom CSS included from a given file:

               cargo rustdoc --lib -- --extend-css extra.css

SEE ALSO

       cargo(1), cargo-doc(1), rustdoc(1)

                                                                                 CARGO-RUSTDOC(1)