doc field to cargo metadata, which indicates if a target is documented. #8869RUSTC_WORKSPACE_WRAPPER, an alternate RUSTC wrapper that only runs for the local workspace packages, and caches its artifacts independently of non-wrapped builds. #8976--workspace to cargo update to update only the workspace members, and not their dependencies. This is particularly useful if you update the version in Cargo.toml and want to update Cargo.lock without running any other commands. #8725.crate files uploaded to a registry are now built with reproducible settings, so that the same .crate file created on different machines should be identical. #8864branch, tag, or rev are now rejected. #8984rerun-if-changed build script directive can now point to a directory, in which case Cargo will check if any file in that directory changes. #8973cargo vendor #8937cargo new will no longer fail, and instead create an empty authors list. #8912cargo new will now support includeIf directives in .gitconfig to match the correct directory when determining the username and email address. #8886cargo metadata and cargo tree to only download packages for the requested target. #8987links field. #8969cargo publish failing on some filesystems, particularly 9p on WSL2. #8950resolver="1" to specify the original feature resolution behavior. #8857-Z extra-link-arg which adds the cargo:rustc-link-arg-bins and cargo:rustc-link-arg build script options. docs #8441cargo logout. (RFC 2730) (docs) #8934-Zbuild-std and no roots. #8942homepage and documentation fields to cargo metadata. #8744CARGO_PRIMARY_PACKAGE environment variable which is set when running rustc if the package is one of the “root” packages selected on the command line. #8758-p 'serde*' or --test '*'). #8752cargo build and cargo test in some circumstances. #8755cargo tree now displays (proc-macro) next to proc-macro packages. #8765_, -, and + to accommodate future syntax changes. This is still a superset of the allowed syntax on crates.io, which requires ASCII. This is intended to be changed to an error in the future. #8814-p without a value will now print a list of workspace package names. #8808cargo metadata for git dependencies that explicitly specify branch="master". #8824.cargo-ok file. #8835cargo doc -Zfeatures=itarget in some situations. #8777dep:serde. docs #8799dep_name?/feat_name, which will enable a feature for a dependency without also enabling the dependency. #8818term.progress configuration option to control when and how the progress bar is displayed. docs #8165--message-format plain option to cargo locate-project to display the project location without JSON to make it easier to use in a script. #8707--workspace option to cargo locate-project to display the path to the workspace manifest. #8712--target completion will now complete with the built-in rustc targets. #8740cargo new creating a fossil repository to properly ignore the target directory. #8671cargo install of a remote package. #8681cargo install so that it will ignore the [unstable] table in local config files. #8656cargo test on a proc-macro with the new feature resolver under a specific combination of circumstances. #8742cargo doc will now include the package's version in the left sidebar. #8509test field to cargo metadata targets. #8478cargo help command (such as cargo help build). #8456 #8577.gitignore when it is modified have been tweaked to add some spacing. #8476cargo metadata output should now be sorted to be deterministic. #8489opt-level=0 and the default codegen units, even in release mode. #8500workspace.default-members is now filtered by workspace.exclude. #8485workspace.members globs now ignore non-directory paths. #8511core.autocrlf git configuration value to ensure they behave consistently across platforms, particularly when vendoring git dependencies on Windows. #8523Cargo.lock needs to be updated, then it will be automatically transitioned to the new V2 format. This format removes the [metadata] table, and should be easier to merge changes in source control systems. This format was introduced in 1.38, and made the default for new projects in 1.41. #8554branch and one with branch="master". Dependencies should all use one form or the other. #8522required-features entry lists a feature that does not exist. #7950cargo --list. #8542cargo install with a specific version that has been yanked will now display an error message that it has been yanked, instead of “could not find”. #8565cargo publish with a package that has the publish field set to a single registry, and no --registry flag has been given, will now publish to that registry instead of generating an error. #8571rerun-if-changed directive, then that build script was being rebuilt when it shouldn't. #8497CARGO_TARGET_{triplet}_RUNNER environment variable will now correctly override the config file instead of trying to merge the commands. #8629-Z terminal-width which tells rustc the width of the terminal so that it can format diagnostics better. docs #8427-Z unstable flags in config files via the [unstable] table. docs #8393-Z build-std-features flag to set features for the standard library. docs #8490dl key in config.json of a registry index now supports the replacement markers {prefix} and {lowerprefix} to allow spreading crates across directories similar to how the index itself is structured. docs #8267readme is not specified in Cargo.toml, it is now automatically inferred from the existence of a file named README, README.md, or README.txt. This can be suppressed by setting readme = false. #8277cargo install now supports the --index flag to install directly from an index. #8344metadata table to the workspace definition in Cargo.toml. This can be used for arbitrary data similar to the package.metadata table. #8323--target-dir flag to cargo install to set the target directory. #8391env! or option_env! macros are now automatically detected to trigger a rebuild. #8421target directory now includes the CACHEDIR.TAG file which is used by some tools to exclude the directory from backups. #8378+toolchain syntax. #8455# fragment in the URL. This was potentially confusing because Cargo itself displays git URLs with this syntax, but it does not have any meaning outside of the Cargo.lock file, and would not work properly. #8297.crate files are now generated with GNU tar format instead of UStar, which supports longer file names. #8453Cargo.lock failed once, but then subsequent runs allowed it proceed. #8274.dll extension. Some custom JSON spec targets may change the extension. #8310pkg/feature syntax, and pkg is an optional dependency, but also a dev-dependency, and the dev-dependency appears before the optional normal dependency in the registry summary, then the optional dependency would not get activated. #8395clean -p deleting the build directory if there is a test named build. #8398--document-private-items flag for rustdoc would override any flags passed to the cargo rustdoc command. #8449-Zrustdoc-map feature which provides external mappings for rustdoc (such as https://docs.rs/ links). docs #8287Cargo.toml with an underscore (like proc_macro = true). #8319-Clinker with -Zdoctest-xcompile. #8359strip profile field in config files. #8454Changed official documentation to recommend .cargo/config.toml filenames (with the .toml extension). .toml extension support was added in 1.39. #8121
The registry.index config value is no longer allowed (it has been deprecated for 4 years). #7973
An error is generated if both --index and --registry are passed (previously --index was silently ignored). #7973
The registry.token config value is no longer used with the --index flag. This is intended to avoid potentially leaking the crates.io token to another registry. #7973
Added a warning if registry.token is used with source replacement. It is intended this will be an error in future versions. #7973
Windows GNU targets now copy .dll.a import library files for DLL crate types to the output directory. #8141
Dylibs for all dependencies are now unconditionally copied to the output directory. Some obscure scenarios can cause an old dylib to be referenced between builds, and this ensures that all the latest copies are used. #8139
package.exclude can now match directory names. If a directory is specified, the entire directory will be excluded, and Cargo will not attempt to inspect it further. Previously Cargo would try to check every file in the directory which could cause problems if the directory contained unreadable files. #8095
When packaging with cargo publish or cargo package, Cargo can use git to guide its decision on which files to include. Previously this git-based logic required a Cargo.toml file to exist at the root of the repository. This is no longer required, so Cargo will now use git-based guidance even if there is not a Cargo.toml in the root of the repository. #8095
While unpacking a crate on Windows, if it fails to write a file because the file is a reserved Windows filename (like “aux.rs”), Cargo will display an extra message to explain why it failed. #8136
Failures to set mtime on files are now ignored. Some filesystems did not support this. #8185
Certain classes of git errors will now recommend enabling net.git-fetch-with-cli. #8166
When doing an LTO build, Cargo will now instruct rustc not to perform codegen when possible. This may result in a faster build and use less disk space. Additionally, for non-LTO builds, Cargo will instruct rustc to not embed LLVM bitcode in libraries, which should decrease their size. #8192 #8226 #8254
The implementation for cargo clean -p has been rewritten so that it can more accurately remove the files for a specific package. #8210
The way Cargo computes the outputs from a build has been rewritten to be more complete and accurate. Newly tracked files will be displayed in JSON messages, and may be uplifted to the output directory in some cases. Some of the changes from this are:
.exp export files on Windows MSVC dynamic libraries are now tracked.There are a variety of other changes as a consequence of this:
foo_bar.exe and foo-bar.exe). Previously Cargo just renamed the file instead of hard-linking it.Cargo attempts to scrub any secrets from the debug log for HTTP debugging. #8222
Context has been added to many of Cargo's filesystem operations, so that error messages now provide more information, such as the path that caused the problem. #8232
Several commands now ignore the error if stdout or stderr is closed while it is running. For example cargo install --list | grep -q cargo-fuzz would previously sometimes panic because grep -q may close stdout before the command finishes. Regular builds continue to fail if stdout or stderr is closed, matching the behavior of many other build systems. #8236
If cargo install is given an exact version, like --version=1.2.3, it will now avoid updating the index if that version is already installed, and exit quickly indicating it is already installed. #8022
Changes to the [patch] section will now attempt to automatically update Cargo.lock to the new version. It should now also provide better error messages for the rare cases where it is unable to automatically update. #8248
.pdb files to the output directory when the filename contained dashes. #8123cargo update with an unused [patch] so that it does not get stuck and refuse to update. #8243--target to rustdoc when using JSON spec targets. #8094-Cembed-bitcode=no renamed to -Cbitcode-in-rlib=no #8134resolver field to Cargo.toml to opt-in to the new feature resolver. #8129-Zbuild-std no longer treats std dependencies as “local”. This means that it won't use incremental compilation for those dependencies, removes them from dep-info files, and caps lints at “allow”. #8177-Zmultitarget which allows multiple --target flags to build the same thing for multiple targets at once. docs #8167strip option to the profile to remove symbols and debug information. docs #8246cargo tree --target=all -Zfeatures=all. #8269cargo tree command. docs #8062nul, con, aux, prn, etc.). #7959"build-finished" JSON message when compilation is complete so that tools can detect when they can stop listening for JSON messages with commands like cargo run or cargo test. #8069-. #7959cargo new and init will warn or reject additional package names (reserved Windows names, reserved Cargo directories, non-ASCII names, conflicting std names like core, etc.). #7959target/debug/). This ensures tools will have access to debug symbols and execute tests in the same way as Cargo. Tools should use JSON messages to discover the path to the executable. #7965.crate file. This reverses the change made in 1.40 where the mtime was not preserved. #7935git-checkout subcommand. #8040rustc now share the same filenames. This means that changing nightly versions will not leave stale files in the build directory. #8073cargo package --list to succeed, even if there are other validation errors (such as Cargo.lock generation problem, or missing dependencies). #8175 #8215profile.dev was not loaded from a config file with cargo test when the dev profile was not defined in Cargo.toml. #8012dep_name/feature_name syntax in required-features correctly. #8020cargo clean -p if the package has a build script. #8216RUSTC_WORKSPACE_WRAPPER environment variable, which provides a way to wrap rustc for workspace members only, and affects the filename hash so that artifacts produced by the wrapper are cached separately. This usage can be seen on nightly clippy with cargo clippy -Zunstable-options. #7533--unit-graph CLI option to display Cargo's internal dependency graph as JSON. #7977-Zbuild_dep to -Zhost_dep, and added proc-macros to the feature decoupling logic. #8003 #8028--crate-version is not automatically passed when the flag is found in RUSTDOCFLAGS. #8014-Zfeatures=dev_dep and check --profile=test. #8027-Zfeatures=itarget with certain host dependencies. #8048-Cembed-bitcode=no, which provides a performance boost and disk-space usage reduction for non-LTO builds. #8066-Zpackage-features has been extended with several changes intended to make it easier to select features on the command-line in a workspace. #8074CARGO_BIN_EXE_<name> environment variable when building integration tests. This variable contains the path to any [[bin]] targets in the package. Integration tests should use the env! macro to determine the path to a binary to execute. docs #7697cargo install --git now honors workspaces in a git repository. This allows workspace settings, like [patch], [replace], or [profile] to be used. #7768cargo new will now run rustfmt on the new files to pick up rustfmt settings like tab_spaces so that the new file matches the user's preferred indentation settings. #7827-vv) are now consistently sorted. #7877license-file file is automatically included during publish, even if it is not explicitly listed in the include list or is in a location outside of the root of the package. #7905CARGO_CFG_DEBUG_ASSERTIONS and CARGO_CFG_PROC_MACRO are no longer set when running a build script. These were inadvertently set in the past, but had no meaning as they were always true. Additionally, cfg(proc-macro) is no longer supported in a target expression. #7943 #7970cargo -v b). #7837renamed_dep/feat_name) now handle renamed dependencies correctly. #7855CARGO_TARGET_*_RUNNER=true as a boolean. Also improved related env var error messages. #7891cargo package / cargo publish should no longer buffer the entire contents of each file in memory. #7946Cargo.toml files in a git dependency. Cargo currently walks the entire repo to find the requested package. Certain invalid manifests were already skipped, and now it should skip all of them. #7947build.out-dir config variable to set the output directory. #7810-Zjobserver-per-rustc feature to support improved performance for parallel rustc. #7731build-std and crates like cc. #7860-Ztimings will now save its report even if there is an error. #7872--config command-line flag to support taking a path to a config file to load. #7901-Z crate-versions flag). #7903cargo vendor now accepts the --versioned-dirs option to force it to always include the version number in each package's directory name. #7631proc_macro crate is now automatically added to the extern prelude for proc-macro packages. This means that extern crate proc_macro; is no longer necessary for proc-macros. #7700debug_assertions, test, proc_macro, or feature= is used in a cfg() expression. #7660.lib DLL import libraries are now copied next to the dll for all Windows MSVC targets. Previously it was only supported for pc-windows-msvc. This adds DLL support for uwp-windows-msvc targets. #7758ar field in the [target] configuration is no longer read. It has been ignored for over 4 years. #7763--offline empty index check, which was a false positive in some cases. #7655. can now be included in a package by adding it to the include list. #7680cargo login removing alternative registry tokens when previous entries existed in the credentials file. #7708cargo vendor from panicking when used with alternative registries. #7718[source] that is defined multiple times will now result in an error. Previously it was randomly picking a source, which could cause non-deterministic behavior. #7751dep_kinds in cargo metadata are now de-duplicated. #7756Cargo.lock was listed in .gitignore in a subdirectory inside a git repository. Previously it was assuming Cargo.lock was at the root of the repo. #7779--sysroot is passed in via RUSTFLAGS. #7798build-std now uses --extern instead of --sysroot to find sysroot packages. #7699--config command-line option to set config settings. #7649include config setting which allows including another config file. #7649Cargo.lock file format. This new format should support easier merges in source control systems. Projects using the old format will continue to use the old format, only new Cargo.lock files will use the new format. #7579cargo install will now upgrade already installed packages instead of failing. #7560BROWSER environment variable for cargo doc --open. #7576kind and platform for dependencies in cargo metadata. #7132OUT_DIR value is now included in the build-script-executed JSON message. #7622cargo doc will now document private items in binaries by default. #7593.gitignore. #7570cargo login text from copy/paste in token. #7588**/*.rs.bk from .gitignore. #7647build config section. #7575/proc/stat. #7580cargo vendor. #7629http.ssl-version config option to control the version of TLS, along with min/max versions. #7308--filter-platform option to cargo metadata to narrow the nodes shown in the resolver graph to only packages included for the given target triple. #7376cfg parsing has been extracted into a separate crate named cargo-platform. #7375.wasm files are no longer treated as an “executable”, allowing cargo test and cargo run to work properly with the generated .js file. #7476cargo clean no longer locks the package cache. #7502cargo publish now allows dev-dependencies without a version key to be published. A git or path-only dev-dependency will be removed from the package manifest before uploading. #7333--features and --no-default-features in the root of a virtual workspace will now generate an error instead of being ignored. #7507Cargo.toml and Cargo.lock) in a package archive now have their timestamp set to the current time instead of the epoch. #7523-Z flag parser is now more strict, rejecting more invalid syntax. #7531include field, and Cargo.lock in .gitignore, and a binary or example target, and the Cargo.lock exists in the current project, it would fail to publish complaining the Cargo.lock was dirty. #7448[patch] entries. #7452cargo test or rustc crashes in an abnormal way, such as a signal or seg fault. #7535mtime-on-use feature may now be enabled via the unstable.mtime_on_use config option. #7411-Zpanic-abort-tests to allow building and running tests with the “abort” panic strategy. #7460build-std to use --sysroot. #7421-Ztimings. #7395 #7398 #7397 #7403 #7428 #7429[profile.dev.package.NAME]. #7504.toml filename extension. #7295--workspace flag has been added as an alias for --all to help avoid confusion about the meaning of “all”. #7241publish field has been added to cargo metadata. #7354rustc fails. #7236cargo vendor no longer deletes files in the vendor directory that starts with a .. #7242cargo fetch will now show manifest warnings. #7243cargo publish will now check git submodules if they contain any uncommitted changes. #7245cargo:rustc-flags now allows -l and -L flags without spaces. #7257cargo install replaces an older version of a package it will now delete any installed binaries that are no longer present in the newly installed version. #7246version key when published. The git value will be stripped from the uploaded crate, matching the behavior of path dependencies. #7237home dependency for locating home directories. #7277cc crate on Windows to allow it to release its implicit token. #7344git@github.com/user/repo.git) should now work. #7238.dSYM symlinks on macOS. #7268[patch] table. #7303.json files where a substring of the name matches an unsupported crate type (like “bin”). #7363build.rs script issues different rerun-if directives between builds. Cargo was erroneously causing a rebuild after the change. #7373[patch] table entries, preventing the patch from working after the first time it is used. #7368--features a b flag is interpreted, restoring the original behavior where this is interpreted as --features a along with the argument b passed to the command. To pass multiple features, use quotes around the features to pass multiple features like --features "a b", or use commas, or use multiple --features flags. #7419-Ztimings feature to generate an HTML report on the time spent on individual compilation steps. This also may output completion steps on the console and JSON data. (docs) #7311--message-format option to Cargo can now be specified multiple times and accepts a comma-separated list of values. In addition to the previous values it also now accepts json-diagnostic-short and json-diagnostic-rendered-ansi which configures the output coming from rustc in json message mode. #7214Cargo.lock has been introduced. This new format is intended to avoid source-control merge conflicts more often, and to generally make it safer to merge changes. This new format is not enabled at this time, though Cargo will use it if it sees it. At some point in the future, it is intended that this will become the default. #7070-q flag will no longer suppress the root error message for an error from Cargo itself. #7116--features command-line flag can now be specified multiple times. The list of features from all the flags are joined together. #7084rustc output fails when querying rustc for information like cfg values. #7185cargo package/cargo publish now allows a symbolic link to a git submodule to include that submodule. #6817git-fetch-with-cli config option, and the GIT_DIR environment variable is set. This may happen when running cargo from git callbacks. #7082-apple- targets with .dSYM directories would overwrite the .d file. #7057[patch] table not preserving “one major version per source” rule. #7118--remap-path-prefix flags for the metadata hash in the cargo rustc command. This was causing the remap settings to inadvertently affect symbol names. #7134[patch] dependencies. #7174cargo new leaving behind a symlink on Windows when core.symlinks git config is true. Also adds a number of fixes and updates from upstream libgit2. #7176target directory to be excluded from backups. #7192cargo fix panicking under some situations involving multi-byte characters. #7221cargo fix --clippy which will apply machine-applicable fixes from Clippy. #7069-Z binary-dep-depinfo flag to add change tracking for binary dependencies like the standard library. #7137 #7219cargo clippy-preview will always run, even if no changes have been made. #7157CARGO_BUILD_PIPELINING. #7062cargo clippy-preview. #7162doctest field to cargo metadata to determine if a target's documentation is tested. #6953 #6965cargo vendor command is now built-in to Cargo. This command may be used to create a local copy of the sources of all dependencies. #6869Cargo.lock file when a package is published if it contains a binary executable target. By default, Cargo will ignore Cargo.lock when installing a package. To force Cargo to use the Cargo.lock file included in the published package, use cargo install --locked. This may be useful to ensure that cargo install consistently reproduces the same result. It may also be useful when a semver-incompatible change is accidentally published to a dependency, providing a way to fall back to a version that is known to work. #7026default-run feature has been stabilized. This feature allows you to specify which binary executable to run by default with cargo run when a package includes multiple binaries. Set the default-run key in the [package] table in Cargo.toml to the name of the binary to use by default. #7056cargo package now verifies that build scripts do not create empty directories. #6973cargo doc generates duplicate outputs, which causes files to be randomly stomped on. This may happen for a variety of reasons (renamed dependencies, multiple versions of the same package, packages with renamed libraries, etc.). This is a known bug, which needs more work to handle correctly. #6998--features foo/bar will no longer compile the current crate with the foo feature if foo is not an optional dependency. #7010--remap-path-prefix is passed via RUSTFLAGS, it will no longer affect the filename metadata hash. #6966debug is set to 0. #6971cargo doc with an example configured with doc = true to document correctly. #7023--locked is used which means CARGO_HOME is not needed. #7149-Z cache-messages flag makes cargo cache the compiler output so that future runs can redisplay previous warnings. #6933-Z mtime-on-use no longer touches intermediate artifacts. #7050--offline flag which allows using cargo without a network connection. #6934 #6871publish = ["crates-io"] may be added to the manifest to restrict publishing to crates.io only. #6838DYLD_FALLBACK_LIBRARY_PATH is not set. Also, remove /lib from the default set. #6856cargo publish will now exit early if the login token is not available. #6854registry.index config value now supports relative file: URLs. #6873.dSYM directory is now symbolically linked next to example binaries without the metadata hash so that debuggers can find it. #6891Cargo.toml template for now projects now includes a comment providing a link to the documentation. #6881RUST_LOG environment variable to CARGO_LOG so that user code that uses the log crate will not display cargo's debug output. #6918Cargo.toml is now always included when packaging, even if it is not listed in package.include. #6925cargo run now correctly passes non-UTF8 arguments to the child process. #6849cargo update ignoring -p arguments if the Cargo.lock file was missing. #6904-Z install-upgrade feature to track details about installed crates and to update them if they are out-of-date. #6798public-dependency feature which allows tracking public versus private dependencies. #6772build.pipelining config option (CARGO_BUILD_PIPELINING env var). #6883publish-lockfile feature has had some significant changes. The default is now true, the Cargo.lock will always be published for binary crates. The Cargo.lock is now regenerated during publishing. cargo install now ignores the Cargo.lock file by default, and requires --locked to use the lock file. Warnings have been added if yanked dependencies are detected. #6840rustc-cdylib-link-arg key for build scripts to specify linker arguments for cdylib crates. #6298cargo test foo, don't build examples (unless they set test = true). #6683--quiet flag from cargo test to the libtest harness so that tests are actually quiet. #6358cargo package that checks if any files are modified is now stricter. It uses a hash of the contents instead of checking filesystem mtimes. It also checks all files in the package. #6740CARGO_PKG_* environment variables from the metadata hash and added them to the fingerprint instead. This means that when these values change, stale artifacts are not left behind. Also added the “repository” value to the fingerprint. #6785cargo metadata no longer shows a null field for a dependency without a library in resolve.nodes.deps. The dependency is no longer shown. #6534cargo new will no longer include an email address in the authors field if it is set to the empty string. #6802cargo doc --open now works when documenting multiple packages. #6803cargo install --path P now loads the .cargo/config file from the directory P. #68051.0.0+1234) now issues a warning that it is ignored. #6806cargo install now rejects certain combinations of flags where some flags would have been ignored. #6801cargo build then cargo test) where the second command could use stale results from a build script. #6720cargo fix not working properly if a .gitignore file that matched the root package directory. #6767panic=unwind was set in a profile. #6781build.target config value are now canonicalized to fix building dependencies. #6778cargo new initializing a fossil repo. #6792git-fetch-with-cli feature. git-fetch-with-cli also shows more error information now when it fails. #6800--example binaries built for the WASM target are fixed to no longer include a metadata hash in the filename, and are correctly emitted in the compiler-artifact JSON message. #6812cargo clippy-preview is now a built-in cargo command. #6759build-override profile setting now includes proc-macros and their dependencies. #6811-Z offline. #6814Cargo.lock now includes a comment at the top that it is @generated. #6548--exclude flag specifies an unknown package. #6679cargo test --doc --no-run doesn't do anything, so it now displays an error to that effect. #6628--target completion, fallback to filename completion, fix editing the command line. #6644[patch] section no longer generates an error. The [patch] section is removed from the manifest before publishing. #6535build.incremental = true config value is now treated the same as CARGO_INCREMENTAL=1, previously it was ignored. #6688cargo run --example. #6578-Z mtime-on-use flag to cause the mtime to be updated on the filesystem when a crate is used. This is intended to be able to track stale artifacts in the future for cleaning up unused files. #6477 #6573-Z dual-proc-macros to build proc macros for both the host and the target. #6547compiler-artifact JSON messages now include an "executable" key which includes the path to the executable that was built. #6363cargo login now displays a confirmation after saving the token. #6466[patch] entry does not match any package. #6470cargo metadata now includes the links key for a package. #6480-vv now displays the environment variables that cargo sets when it runs a process. #6492--example, --bin, --bench, or --test without an argument now lists the available targets for those options. #6505--features, --no-default-features, and --all-features flags to the cargo package and cargo publish commands to use the given features when verifying the package. #6453cargo fix fails to compile the fixed code, the rustc errors are now displayed on the console. #6419--host flag from cargo login, it is unused. #6466DYLD_FALLBACK_LIBRARY_PATH instead of DYLD_LIBRARY_PATH. #6355RUSTFLAGS is now included in the metadata hash, meaning that changing the flags will not overwrite previously built files. #6503cargo update -p somecrate. #5702cargo fix will now ignore suggestions that modify multiple files. #6402cargo fix will now only fix one target at a time, to deal with targets which share the same source files. #6434cargo init will now avoid creating duplicate entries in .gitignore files. #6521[patch] tables instead of just URLs. #6456cargo metadata added the registry key for dependencies. #6500- and _ characters). #6469cargo login now displays the /me URL from the registry config. #6466cargo login --registry=NAME now supports interactive input for the token. #6466api key from config.json to indicate they do not support API access. #6466--message-format=json with metabuild. #6432c for cargo check. #6218http.multiplexing config value may be used to disable it. #6271--update-head-ok git flag when using the net.git-fetch-with-cli option. This can help prevent failures when fetching some repositories. #6250cargo package, the filesystem mtimes are no longer set, which was failing on some rare filesystems. #6257crate-type = ["proc-macro"] is now treated the same as proc-macro = true in Cargo.toml. #6256dependencies, features, target, or badges is set in a virtual workspace. Warnings are displayed if replace or patch is used in a workspace member. #6276.rmeta files are no longer hard-linked into the base target directory (target/debug). #6292cargo build (without --release) benchmarks are now built using the “test” profile instead of “bench”. This makes it easier to debug benchmarks, and avoids confusing behavior. #6309b, r, t, and c). #6259autobins=false now disables auto-discovery of inferred targets. #6329cargo verify-project will now fail on stable if the project uses unstable features. #6326. within the name are now allowed. #6255cargo clean --release now only deletes the release directory. #6349cargo new. #6243cargo run --example NAME to work correctly if the example sets crate_type = ["bin"]. #6330cargo package git discovery being too aggressive. The --allow-dirty now completely disables the git repo checks. #6280[patch] deps which resulted in cargo build rebuilding when it shouldn't. #6493"compile_mode" key to the build-plan JSON structure to be able to distinguish running a custom build script versus compiling the build script. #6331--out-dir no longer copies over build scripts. #6300http.multiplexing config value to enable. #6005http.debug configuration value to debug HTTP connections. Use CARGO_HTTP_DEBUG=true RUST_LOG=cargo::ops::registry cargo build to display the debug information. #6166CARGO_PKG_REPOSITORY environment variable is set with the repository value from Cargo.toml when building . #6096cargo test --doc now rejects other flags instead of ignoring them. #6037cargo install ignores ~/.cargo/config. #6026cargo version --verbose is now the same as cargo -vV. #6076Cargo.lock are now preserved. #6181cargo build -vv), build script output is prefixed with the package name and version, such as [foo 0.0.1]. #6164cargo fix --broken-code fails to compile after fixes have been applied, the files are no longer reverted and are left in their broken state. #6316cargo run. #6004+toolchain in bash completion. #6038cargo test --all-targets running lib tests three times. #6039cargo install on a git repo with multiple binaries. #6060target/debug and target/debug/deps. #6167panic=abort is used. #6170--registry flag to cargo install. #6128registry.default configuration value to specify the default registry to use if --registry flag is not passed. #6135--registry flag to cargo new and cargo init. #6135resolve.nodes.deps key to cargo metadata, which includes more information about resolved dependencies, and properly handles renamed dependencies. #5871-v when failing to discover if files are dirty in a git repository. Also fix a problem with discovery on Windows. #5858--bin, --test, --example, --bench, or --lib can be used in a workspace without selecting a specific package. #5873cargo run can be used in a workspace without selecting a specific package. #5877cargo doc --message-format=json now outputs JSON messages from rustdoc. #5878--message-format=short to show one-line messages. #5879.cargo_vcs_info.json file to .crate packages that captures the current git hash. #5886net.git-fetch-with-cli configuration option to use the git executable to fetch repositories instead of using the built-in libgit2 library. #5914required-features to cargo metadata. #5902cargo uninstall within a package will now uninstall that package. #5927--allow-staged flag to cargo fix to allow it to run if files are staged in git. #5943net.low-speed-limit config value, and also honor net.timeout for http operations. #5957--edition flag to cargo new. #5984target.'cfg(…)'.runner config value to specify the run/test/bench runner for targets that use config expressions. #5959cargo run will not kill child processes when the main process exits. #5887opener crate to open a web browser with cargo doc --open. This should more reliably select the system-preferred browser on all platforms. #5888build.target config value when running cargo install. #5874RUSTC_WRAPPER for cargo fix. #5983RUSTC_WRAPPER. #5985Cargo.toml. #5908cargo fix now always runs, even if it was run previously. #5944cargo doc --document-private-items. 6022