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726 lines
19 KiB
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of CARGO-FIX</TITLE>
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</HEAD><BODY>
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<H1>CARGO-FIX</H1>
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Section: (1)<BR>Updated: 2020-06-25<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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cargo-fix - Automatically fix lint warnings reported by rustc
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<P>
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<B>cargo fix [</B><I>OPTIONS</I>]
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<P>
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This Cargo subcommand will automatically take rustc's suggestions from
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diagnostics like warnings and apply them to your source code. This is intended
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to help automate tasks that rustc itself already knows how to tell you to fix!
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The <B>cargo fix</B> subcommand is also being developed for the Rust 2018 edition
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to provide code the ability to easily opt-in to the new edition without having
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to worry about any breakage.
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<P>
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Executing <B>cargo fix</B> will under the hood execute <B><A HREF="/cgi-bin/man/man2html?1+cargo-check">cargo-check</A></B>(1). Any warnings
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applicable to your crate will be automatically fixed (if possible) and all
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remaining warnings will be displayed when the check process is finished. For
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example if you'd like to prepare for the 2018 edition, you can do so by
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executing:
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<P>
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<DL COMPACT><DT id="1"><DD>
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<PRE>
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cargo fix --edition
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</PRE>
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</DL>
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<P>
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which behaves the same as <B>cargo check --all-targets</B>.
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<P>
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<B>cargo fix</B> is only capable of fixing code that is normally compiled with
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<B>cargo check</B>. If code is conditionally enabled with optional features, you
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will need to enable those features for that code to be analyzed:
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<P>
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<DL COMPACT><DT id="2"><DD>
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<PRE>
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cargo fix --edition --features foo
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</PRE>
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</DL>
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<P>
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Similarly, other <B>cfg</B> expressions like platform-specific code will need to
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pass <B>--target</B> to fix code for the given target.
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<P>
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<DL COMPACT><DT id="3"><DD>
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<PRE>
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cargo fix --edition --target x86_64-pc-windows-gnu
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</PRE>
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</DL>
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<P>
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If you encounter any problems with <B>cargo fix</B> or otherwise have any questions
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or feature requests please don't hesitate to file an issue at
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<I></I> <<A HREF="https://github.com/rust-lang/cargo">https://github.com/rust-lang/cargo</A>>
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<A NAME="lbAE"> </A>
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<H2>OPTIONS</H2>
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<A NAME="lbAF"> </A>
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<H3>Fix options</H3>
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<P>
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<B>--broken-code</B>
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<DL COMPACT><DT id="4"><DD>
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Fix code even if it already has compiler errors. This is useful if <B>cargo
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fix</B> fails to apply the changes. It will apply the changes and leave the
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broken code in the working directory for you to inspect and manually fix.
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</DL>
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<P>
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<B>--edition</B>
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<DL COMPACT><DT id="5"><DD>
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Apply changes that will update the code to the latest edition. This will
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not update the edition in the <B>Cargo.toml</B> manifest, which must be updated
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manually.
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</DL>
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<P>
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<B>--edition-idioms</B>
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<DL COMPACT><DT id="6"><DD>
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Apply suggestions that will update code to the preferred style for the
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current edition.
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</DL>
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<P>
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<B>--allow-no-vcs</B>
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<DL COMPACT><DT id="7"><DD>
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Fix code even if a VCS was not detected.
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</DL>
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<P>
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<B>--allow-dirty</B>
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<DL COMPACT><DT id="8"><DD>
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Fix code even if the working directory has changes.
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</DL>
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<P>
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<B>--allow-staged</B>
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<DL COMPACT><DT id="9"><DD>
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Fix code even if the working directory has staged changes.
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</DL>
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<A NAME="lbAG"> </A>
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<H3>Package Selection</H3>
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<P>
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By default, when no package selection options are given, the packages selected
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depend on the selected manifest file (based on the current working directory if
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<B>--manifest-path</B> is not given). If the manifest is the root of a workspace then
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the workspaces default members are selected, otherwise only the package defined
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by the manifest will be selected.
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<P>
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The default members of a workspace can be set explicitly with the
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<B>workspace.default-members</B> key in the root manifest. If this is not set, a
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virtual workspace will include all workspace members (equivalent to passing
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<B>--workspace</B>), and a non-virtual workspace will include only the root crate itself.
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<P>
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<B>-p</B> <I>SPEC</I>..., <B>--package</B> <I>SPEC</I>...
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<DL COMPACT><DT id="10"><DD>
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Fix only the specified packages. See <B><A HREF="/cgi-bin/man/man2html?1+cargo-pkgid">cargo-pkgid</A></B>(1) for the
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SPEC format. This flag may be specified multiple times.
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</DL>
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<P>
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<B>--workspace</B>
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<DL COMPACT><DT id="11"><DD>
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Fix all members in the workspace.
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</DL>
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<P>
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<B>--all</B>
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<DL COMPACT><DT id="12"><DD>
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Deprecated alias for <B>--workspace</B>.
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</DL>
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<P>
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<B>--exclude</B> <I>SPEC</I>...
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<DL COMPACT><DT id="13"><DD>
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Exclude the specified packages. Must be used in conjunction with the
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<B>--workspace</B> flag. This flag may be specified multiple times.
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</DL>
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<A NAME="lbAH"> </A>
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<H3>Target Selection</H3>
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<P>
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When no target selection options are given, <B>cargo fix</B> will fix all targets
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(<B>--all-targets</B> implied). Binaries are skipped if they have
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<B>required-features</B> that are missing.
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<P>
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Passing target selection flags will fix only the
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specified targets.
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<P>
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<B>--lib</B>
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<DL COMPACT><DT id="14"><DD>
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Fix the package's library.
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</DL>
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<P>
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<B>--bin</B> <I>NAME</I>...
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<DL COMPACT><DT id="15"><DD>
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Fix the specified binary. This flag may be specified multiple times.
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</DL>
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<P>
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<B>--bins</B>
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<DL COMPACT><DT id="16"><DD>
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Fix all binary targets.
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</DL>
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<P>
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<B>--example</B> <I>NAME</I>...
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<DL COMPACT><DT id="17"><DD>
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Fix the specified example. This flag may be specified multiple times.
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</DL>
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<P>
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<B>--examples</B>
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<DL COMPACT><DT id="18"><DD>
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Fix all example targets.
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</DL>
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<P>
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<B>--test</B> <I>NAME</I>...
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<DL COMPACT><DT id="19"><DD>
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Fix the specified integration test. This flag may be specified multiple
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times.
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</DL>
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<P>
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<B>--tests</B>
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<DL COMPACT><DT id="20"><DD>
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Fix all targets in test mode that have the <B>test = true</B> manifest
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flag set. By default this includes the library and binaries built as
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unittests, and integration tests. Be aware that this will also build any
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required dependencies, so the lib target may be built twice (once as a
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unittest, and once as a dependency for binaries, integration tests, etc.).
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Targets may be enabled or disabled by setting the <B>test</B> flag in the
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manifest settings for the target.
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</DL>
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<P>
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<B>--bench</B> <I>NAME</I>...
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<DL COMPACT><DT id="21"><DD>
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Fix the specified benchmark. This flag may be specified multiple times.
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</DL>
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<P>
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<B>--benches</B>
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<DL COMPACT><DT id="22"><DD>
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Fix all targets in benchmark mode that have the <B>bench = true</B>
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manifest flag set. By default this includes the library and binaries built
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as benchmarks, and bench targets. Be aware that this will also build any
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required dependencies, so the lib target may be built twice (once as a
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benchmark, and once as a dependency for binaries, benchmarks, etc.).
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Targets may be enabled or disabled by setting the <B>bench</B> flag in the
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manifest settings for the target.
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</DL>
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<P>
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<B>--all-targets</B>
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<DL COMPACT><DT id="23"><DD>
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Fix all targets. This is equivalent to specifying <B>--lib --bins
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--tests --benches --examples</B>.
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</DL>
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<A NAME="lbAI"> </A>
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<H3>Feature Selection</H3>
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<P>
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The feature flags allow you to control the enabled features for the "current"
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package. The "current" package is the package in the current directory, or the
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one specified in <B>--manifest-path</B>. If running in the root of a virtual
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workspace, then the default features are selected for all workspace members,
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or all features if <B>--all-features</B> is specified.
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<P>
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When no feature options are given, the <B>default</B> feature is activated for
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every selected package.
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<P>
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<B>--features</B> <I>FEATURES</I>
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<DL COMPACT><DT id="24"><DD>
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Space or comma separated list of features to activate. These features only
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apply to the current directory's package. Features of direct dependencies
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may be enabled with <B><dep-name>/<feature-name></B> syntax. This flag may be
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specified multiple times, which enables all specified features.
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</DL>
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<P>
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<B>--all-features</B>
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<DL COMPACT><DT id="25"><DD>
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Activate all available features of all selected packages.
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</DL>
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<P>
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<B>--no-default-features</B>
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<DL COMPACT><DT id="26"><DD>
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Do not activate the <B>default</B> feature of the current directory's
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package.
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</DL>
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<A NAME="lbAJ"> </A>
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<H3>Compilation Options</H3>
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<P>
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<B>--target</B> <I>TRIPLE</I>
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<DL COMPACT><DT id="27"><DD>
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Fix for the given architecture. The default is the host
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architecture. The general format of the triple is
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<B><arch><sub>-<vendor>-<sys>-<abi></B>. Run <B>rustc --print target-list</B> for a
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list of supported targets.
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<P>
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This may also be specified with the <B>build.target</B>
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<I>config value</I> <<A HREF="https://doc.rust-lang.org/cargo/reference/config.html">https://doc.rust-lang.org/cargo/reference/config.html</A>>.
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<P>
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Note that specifying this flag makes Cargo run in a different mode where the
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target artifacts are placed in a separate directory. See the
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<I>build cache</I> <<A HREF="https://doc.rust-lang.org/cargo/guide/build-cache.html">https://doc.rust-lang.org/cargo/guide/build-cache.html</A>>
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documentation for more details.
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</DL>
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<P>
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<B>--release</B>
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<DL COMPACT><DT id="28"><DD>
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Fix optimized artifacts with the <B>release</B> profile. See the
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PROFILES section for details on how this affects profile selection.
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</DL>
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<P>
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<B>--profile</B> <I>NAME</I>
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<DL COMPACT><DT id="29"><DD>
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Changes fix behavior. Currently only <B>test</B> is
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supported, which will fix with the
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<B>#[cfg(test)]</B> attribute enabled. This is useful to have it
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fix unit tests which are usually excluded via
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the <B>cfg</B> attribute. This does not change the actual profile used.
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</DL>
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<A NAME="lbAK"> </A>
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<H3>Output Options</H3>
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<P>
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<B>--target-dir</B> <I>DIRECTORY</I>
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<DL COMPACT><DT id="30"><DD>
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Directory for all generated artifacts and intermediate files. May also be
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specified with the <B>CARGO_TARGET_DIR</B> environment variable, or the
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<B>build.target-dir</B>
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<I>config value</I> <<A HREF="https://doc.rust-lang.org/cargo/reference/config.html">https://doc.rust-lang.org/cargo/reference/config.html</A>>.
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Defaults
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to <B>target</B> in the root of the workspace.
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</DL>
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<A NAME="lbAL"> </A>
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<H3>Display Options</H3>
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<P>
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<B>-v</B>, <B>--verbose</B>
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<DL COMPACT><DT id="31"><DD>
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Use verbose output. May be specified twice for "very verbose" output which
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includes extra output such as dependency warnings and build script output.
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May also be specified with the <B>term.verbose</B>
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<I>config value</I> <<A HREF="https://doc.rust-lang.org/cargo/reference/config.html">https://doc.rust-lang.org/cargo/reference/config.html</A>>.
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</DL>
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<P>
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<B>-q</B>, <B>--quiet</B>
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<DL COMPACT><DT id="32"><DD>
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No output printed to stdout.
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</DL>
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<P>
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<B>--color</B> <I>WHEN</I>
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<DL COMPACT><DT id="33"><DD>
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Control when colored output is used. Valid values:
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<P>
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<DL COMPACT><DT id="34"><DD>
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•
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<B>auto</B> (default): Automatically detect if color support is available on the
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terminal.
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</DL>
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<P>
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<DL COMPACT><DT id="35"><DD>
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•
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<B>always</B>: Always display colors.
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</DL>
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<P>
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<DL COMPACT><DT id="36"><DD>
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•
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<B>never</B>: Never display colors.
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</DL>
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<P>
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May also be specified with the <B>term.color</B>
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<I>config value</I> <<A HREF="https://doc.rust-lang.org/cargo/reference/config.html">https://doc.rust-lang.org/cargo/reference/config.html</A>>.
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</DL>
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<P>
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<B>--message-format</B> <I>FMT</I>
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<DL COMPACT><DT id="37"><DD>
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The output format for diagnostic messages. Can be specified multiple times
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and consists of comma-separated values. Valid values:
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<P>
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<DL COMPACT><DT id="38"><DD>
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•
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<B>human</B> (default): Display in a human-readable text format.
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</DL>
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<P>
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<DL COMPACT><DT id="39"><DD>
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•
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<B>short</B>: Emit shorter, human-readable text messages.
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</DL>
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<P>
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<DL COMPACT><DT id="40"><DD>
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•
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<B>json</B>: Emit JSON messages to stdout. See
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<I>the reference</I> <<A HREF="https://doc.rust-lang.org/cargo/reference/external-tools.html#json-messages">https://doc.rust-lang.org/cargo/reference/external-tools.html#json-messages</A>>
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for more details.
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</DL>
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<P>
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<DL COMPACT><DT id="41"><DD>
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•
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<B>json-diagnostic-short</B>: Ensure the <B>rendered</B> field of JSON messages contains
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the "short" rendering from rustc.
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</DL>
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<P>
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<DL COMPACT><DT id="42"><DD>
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•
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<B>json-diagnostic-rendered-ansi</B>: Ensure the <B>rendered</B> field of JSON messages
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contains embedded ANSI color codes for respecting rustc's default color
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scheme.
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</DL>
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<P>
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<DL COMPACT><DT id="43"><DD>
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•
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<B>json-render-diagnostics</B>: Instruct Cargo to not include rustc diagnostics in
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in JSON messages printed, but instead Cargo itself should render the
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JSON diagnostics coming from rustc. Cargo's own JSON diagnostics and others
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coming from rustc are still emitted.
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</DL>
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</DL>
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<A NAME="lbAM"> </A>
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<H3>Manifest Options</H3>
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<P>
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<B>--manifest-path</B> <I>PATH</I>
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<DL COMPACT><DT id="44"><DD>
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Path to the <B>Cargo.toml</B> file. By default, Cargo searches for the
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<B>Cargo.toml</B> file in the current directory or any parent directory.
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</DL>
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<P>
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<B>--frozen</B>, <B>--locked</B>
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<DL COMPACT><DT id="45"><DD>
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Either of these flags requires that the <B>Cargo.lock</B> file is
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up-to-date. If the lock file is missing, or it needs to be updated, Cargo will
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exit with an error. The <B>--frozen</B> flag also prevents Cargo from
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attempting to access the network to determine if it is out-of-date.
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<P>
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These may be used in environments where you want to assert that the
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<B>Cargo.lock</B> file is up-to-date (such as a CI build) or want to avoid network
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access.
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</DL>
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<P>
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<B>--offline</B>
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<DL COMPACT><DT id="46"><DD>
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Prevents Cargo from accessing the network for any reason. Without this
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flag, Cargo will stop with an error if it needs to access the network and
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the network is not available. With this flag, Cargo will attempt to
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proceed without the network if possible.
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<P>
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Beware that this may result in different dependency resolution than online
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mode. Cargo will restrict itself to crates that are downloaded locally, even
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if there might be a newer version as indicated in the local copy of the index.
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See the <B><A HREF="/cgi-bin/man/man2html?1+cargo-fetch">cargo-fetch</A></B>(1) command to download dependencies before going
|
|
offline.
|
|
<P>
|
|
May also be specified with the <B>net.offline</B>
|
|
<I>config value</I> <<A HREF="https://doc.rust-lang.org/cargo/reference/config.html">https://doc.rust-lang.org/cargo/reference/config.html</A>>.
|
|
|
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</DL>
|
|
|
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<A NAME="lbAN"> </A>
|
|
<H3>Common Options</H3>
|
|
|
|
<P>
|
|
<B>+TOOLCHAIN</B>
|
|
<DL COMPACT><DT id="47"><DD>
|
|
If Cargo has been installed with rustup, and the first argument to <B>cargo</B>
|
|
begins with <B>+</B>, it will be interpreted as a rustup toolchain name (such
|
|
as <B>+stable</B> or <B>+nightly</B>).
|
|
See the
|
|
<I>rustup documentation</I> <<A HREF="https://github.com/rust-lang/rustup/">https://github.com/rust-lang/rustup/</A>>
|
|
|
|
for more information about how toolchain overrides work.
|
|
</DL>
|
|
|
|
<P>
|
|
<B>-h</B>, <B>--help</B>
|
|
<DL COMPACT><DT id="48"><DD>
|
|
Prints help information.
|
|
</DL>
|
|
|
|
<P>
|
|
<B>-Z</B> <I>FLAG</I>...
|
|
<DL COMPACT><DT id="49"><DD>
|
|
Unstable (nightly-only) flags to Cargo. Run <B>cargo -Z help</B> for
|
|
details.
|
|
</DL>
|
|
|
|
<A NAME="lbAO"> </A>
|
|
<H3>Miscellaneous Options</H3>
|
|
|
|
<P>
|
|
<B>-j</B> <I>N</I>, <B>--jobs</B> <I>N</I>
|
|
<DL COMPACT><DT id="50"><DD>
|
|
Number of parallel jobs to run. May also be specified with the
|
|
<B>build.jobs</B>
|
|
<I>config value</I> <<A HREF="https://doc.rust-lang.org/cargo/reference/config.html">https://doc.rust-lang.org/cargo/reference/config.html</A>>.
|
|
|
|
Defaults to
|
|
the number of CPUs.
|
|
</DL>
|
|
|
|
<A NAME="lbAP"> </A>
|
|
<H2>PROFILES</H2>
|
|
|
|
<P>
|
|
Profiles may be used to configure compiler options such as optimization levels
|
|
and debug settings. See
|
|
|
|
<I>the reference</I> <<A HREF="https://doc.rust-lang.org/cargo/reference/profiles.html">https://doc.rust-lang.org/cargo/reference/profiles.html</A>>
|
|
|
|
for more details.
|
|
<P>
|
|
Profile selection depends on the target and crate being built. By default the
|
|
<B>dev</B> or <B>test</B> profiles are used. If the <B>--release</B> flag is given, then the
|
|
<B>release</B> or <B>bench</B> profiles are used.
|
|
<TABLE BORDER>
|
|
<TR VALIGN=top><TD>
|
|
<P>
|
|
Target
|
|
</TD><TD>
|
|
<P>
|
|
Default Profile
|
|
</TD><TD>
|
|
<P>
|
|
<B>--release</B> Profile
|
|
<BR></TD></TR>
|
|
<TR VALIGN=top><TD>
|
|
<P>
|
|
lib, bin, example
|
|
</TD><TD>
|
|
<P>
|
|
<B>dev</B>
|
|
</TD><TD>
|
|
<P>
|
|
<B>release</B>
|
|
<BR></TD></TR>
|
|
<TR VALIGN=top><TD>
|
|
<P>
|
|
test, bench, or any target
|
|
<BR>
|
|
|
|
in "test" or "bench" mode
|
|
</TD><TD>
|
|
<P>
|
|
<B>test</B>
|
|
</TD><TD>
|
|
<P>
|
|
<B>bench</B>
|
|
<BR></TD></TR>
|
|
</TABLE>
|
|
|
|
<P>
|
|
<P>
|
|
Dependencies use the <B>dev</B>/<B>release</B> profiles.
|
|
<A NAME="lbAQ"> </A>
|
|
<H2>ENVIRONMENT</H2>
|
|
|
|
<P>
|
|
See
|
|
<I>the reference</I> <<A HREF="https://doc.rust-lang.org/cargo/reference/environment-variables.html">https://doc.rust-lang.org/cargo/reference/environment-variables.html</A>>
|
|
|
|
for
|
|
details on environment variables that Cargo reads.
|
|
<A NAME="lbAR"> </A>
|
|
<H2>EXIT STATUS</H2>
|
|
|
|
<P>
|
|
0
|
|
<DL COMPACT><DT id="51"><DD>
|
|
Cargo succeeded.
|
|
</DL>
|
|
|
|
<P>
|
|
101
|
|
<DL COMPACT><DT id="52"><DD>
|
|
Cargo failed to complete.
|
|
</DL>
|
|
|
|
<A NAME="lbAS"> </A>
|
|
<H2>EXAMPLES</H2>
|
|
|
|
<P>
|
|
<DL COMPACT><DT id="53"><DD>
|
|
1.
|
|
|
|
|
|
Apply compiler suggestions to the local package:
|
|
<P>
|
|
<DL COMPACT><DT id="54"><DD>
|
|
|
|
<PRE>
|
|
cargo fix
|
|
</PRE>
|
|
|
|
</DL>
|
|
|
|
|
|
</DL>
|
|
|
|
<P>
|
|
<DL COMPACT><DT id="55"><DD>
|
|
2.
|
|
|
|
|
|
Convert a 2015 edition to 2018:
|
|
<P>
|
|
<DL COMPACT><DT id="56"><DD>
|
|
|
|
<PRE>
|
|
cargo fix --edition
|
|
</PRE>
|
|
|
|
</DL>
|
|
|
|
|
|
</DL>
|
|
|
|
<P>
|
|
<DL COMPACT><DT id="57"><DD>
|
|
3.
|
|
|
|
|
|
Apply suggested idioms for the current edition:
|
|
<P>
|
|
<DL COMPACT><DT id="58"><DD>
|
|
|
|
<PRE>
|
|
cargo fix --edition-idioms
|
|
</PRE>
|
|
|
|
</DL>
|
|
|
|
|
|
</DL>
|
|
|
|
<A NAME="lbAT"> </A>
|
|
<H2>SEE ALSO</H2>
|
|
|
|
<P>
|
|
<B><A HREF="/cgi-bin/man/man2html?1+cargo">cargo</A></B>(1), <B><A HREF="/cgi-bin/man/man2html?1+cargo-check">cargo-check</A></B>(1)
|
|
|
|
<HR>
|
|
<A NAME="index"> </A><H2>Index</H2>
|
|
<DL>
|
|
<DT id="59"><A HREF="#lbAB">NAME</A><DD>
|
|
<DT id="60"><A HREF="#lbAC">SYNOPSIS</A><DD>
|
|
<DT id="61"><A HREF="#lbAD">DESCRIPTION</A><DD>
|
|
<DT id="62"><A HREF="#lbAE">OPTIONS</A><DD>
|
|
<DL>
|
|
<DT id="63"><A HREF="#lbAF">Fix options</A><DD>
|
|
<DT id="64"><A HREF="#lbAG">Package Selection</A><DD>
|
|
<DT id="65"><A HREF="#lbAH">Target Selection</A><DD>
|
|
<DT id="66"><A HREF="#lbAI">Feature Selection</A><DD>
|
|
<DT id="67"><A HREF="#lbAJ">Compilation Options</A><DD>
|
|
<DT id="68"><A HREF="#lbAK">Output Options</A><DD>
|
|
<DT id="69"><A HREF="#lbAL">Display Options</A><DD>
|
|
<DT id="70"><A HREF="#lbAM">Manifest Options</A><DD>
|
|
<DT id="71"><A HREF="#lbAN">Common Options</A><DD>
|
|
<DT id="72"><A HREF="#lbAO">Miscellaneous Options</A><DD>
|
|
</DL>
|
|
<DT id="73"><A HREF="#lbAP">PROFILES</A><DD>
|
|
<DT id="74"><A HREF="#lbAQ">ENVIRONMENT</A><DD>
|
|
<DT id="75"><A HREF="#lbAR">EXIT STATUS</A><DD>
|
|
<DT id="76"><A HREF="#lbAS">EXAMPLES</A><DD>
|
|
<DT id="77"><A HREF="#lbAT">SEE ALSO</A><DD>
|
|
</DL>
|
|
<HR>
|
|
This document was created by
|
|
<A HREF="/cgi-bin/man/man2html">man2html</A>,
|
|
using the manual pages.<BR>
|
|
Time: 00:05:08 GMT, March 31, 2021
|
|
</BODY>
|
|
</HTML>
|