cargo-build - Compile the current package
cargo build [options]
CARGO-BUILD(1) General Commands Manual CARGO-BUILD(1)
NAME
cargo-build - Compile the current package
SYNOPSIS
cargo build [options]
DESCRIPTION
Compile local packages and all of their dependencies.
OPTIONS
Package Selection
By default, when no package selection options are given, the packages
selected depend on the selected manifest file (based on the current
working directory if --manifest-path is not given). If the manifest is
the root of a workspace then the workspaces default members are
selected, otherwise only the package defined by the manifest will be
selected.
The default members of a workspace can be set explicitly with the
workspace.default-members key in the root manifest. If this is not set,
a virtual workspace will include all workspace members (equivalent to
passing --workspace), and a non-virtual workspace will include only the
root crate itself.
-p spec..., --package spec...
Build only the specified packages. See cargo-pkgid(1) for the SPEC
format. This flag may be specified multiple times and supports
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
pattern.
--workspace
Build all members in the workspace.
--all
Deprecated alias for --workspace.
--exclude SPEC...
Exclude the specified packages. Must be used in conjunction with
the --workspace flag. This flag may be specified multiple times and
supports 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 pattern.
Target Selection
When no target selection options are given, cargo build will build all
binary and library targets of the selected packages. Binaries are
skipped if they have required-features that are missing.
Passing target selection flags will build 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
Build the package's library.
--bin name...
Build the specified binary. This flag may be specified multiple
times and supports common Unix glob patterns.
--bins
Build all binary targets.
--example name...
Build the specified example. This flag may be specified multiple
times and supports common Unix glob patterns.
--examples
Build all example targets.
--test name...
Build the specified integration test. This flag may be specified
multiple times and supports common Unix glob patterns.
--tests
Build 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...
Build the specified benchmark. This flag may be specified multiple
times and supports common Unix glob patterns.
--benches
Build 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
Build 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.
--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
Build 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 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.
--release
Build optimized artifacts with the release profile. See the
PROFILES section for details on how this affects profile selection.
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.
--out-dir directory
Copy final artifacts to this directory.
This option is unstable and available only 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
<https://github.com/rust-lang/cargo/issues/6790> for more
information.
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
No output printed to stdout.
--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>.
--message-format fmt
The output format for diagnostic messages. Can be specified
multiple times and consists of comma-separated values. Valid
values:
o human (default): Display in a human-readable text format.
Conflicts with short and json.
o short: Emit shorter, human-readable text messages. Conflicts
with human and json.
o 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.
o json-diagnostic-short: Ensure the rendered field of JSON
messages contains the "short" rendering from rustc. Cannot be
used with human or short.
o 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.
o json-render-diagnostics: Instruct Cargo to not include rustc
diagnostics in 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.
--build-plan
Outputs a series of JSON messages to stdout that indicate the
commands to run the build.
This option is unstable and available only 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
<https://github.com/rust-lang/cargo/issues/5579> for more
information.
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.
-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 CPUs.
PROFILES
Profiles may be used to configure compiler options such as optimization
levels and debug settings. See the reference
<https://doc.rust-lang.org/cargo/reference/profiles.html> for more
details.
Profile selection depends on the target and crate being built. By
default the dev or test profiles are used. If the --release flag is
given, then the release or bench profiles are used.
+--------------------+-----------------+-------------------+
|Target | Default Profile | --release Profile |
+--------------------+-----------------+-------------------+
|lib, bin, example | dev | release |
+--------------------+-----------------+-------------------+
|test, bench, or any | test | bench |
|target in "test" or | | |
|"bench" mode | | |
+--------------------+-----------------+-------------------+
Dependencies use the dev/release profiles.
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.
EXAMPLES
1. Build the local package and all of its dependencies:
cargo build
2. Build with optimizations:
cargo build --release
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+----------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+----------------------+
|Availability | developer/rust/cargo |
+---------------+----------------------+
|Stability | Volatile |
+---------------+----------------------+
SEE ALSO
cargo(1), cargo-rustc(1)
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://static.rust-
lang.org/dist/rustc-1.53.0-src.tar.xz.
Further information about this software can be found on the open source
community website at http://www.rust-lang.org/.
CARGO-BUILD(1)