CARGO_PKG_README environment variable is now set to the path to the README file when compiling a crate. #11645--charset option of cargo tree. #11785CARGO_CFG_ vars for configs defined both with and without value. #11790cargo add. #11805patch] involved in dependency resolution results in a conflict. #11770-Zdirect-minimal-versions. This behaves like -Zminimal-versions but only for direct dependencies. (docs) #11688-Zgitoxide which switches all git fetch operation in Cargo to use gitoxide crate. This is still an MVP but could improve the performance up to 2 times. (docs) #11448 #11800-Zjobserver-per-rustc. Its rustc counterpart never got landed. #11764sha2 crate for SHA256 calculation. #11795 #11807base64 v0.21.0. #11796cargo-deny in Cargo its own CI pipeline. #11761cargo fix or cargo clippy --fix when compilation warnings are auto-fixable. #11558cargo add if you try to install a library crate. #11410CARGO_BIN_NAME environment variable also for binary examples. #11705default-features is set to false of a workspace dependency, and an inherited dependency of a member has default-features = true, Cargo will enable default features of that dependency. #11409CARGO_HOME in [env] configuration table. Cargo itself doesn't pick up this value, but recursive calls to cargo will. We consider it as a wrong behavior to only pass it to recursive invocations. #11644cargo add now checks only the order of [dependencies] without considering [dependencies.*]. #11612jobserver. #11767cargo install now reports required features when no binary meets its requirements. #11647.dwp DWARF package file next to the executable for debuggers to locate them. #11572rerun-if-changed points to a directory whose mtime is not preserved by the filesystem. #11613[workspace.dependencies] for [patch]. This usage is not supposed to be supported. #11565 #11630cargo report saving the same future-incompat reports multiple times. #11648.rs as a file. #11678.cargo-ok file being truncated wrongly, preventing from using a dependency. #11665 #11724-Zrustdoc-scrape-example must fail with bad build script. #11694-C flag for changing current dir before build starts. #10952CARGO_CRATE_NAME and CARGO_PKG_NAME. #11576publish.timeout docs. #11652cargo::core::compiler modules. #11669 #11703 #11711 #11758codegen-backend. #11676cargo install to the man pages #11763-F flag as an alias for --features in cargo add. #11774cargo_new::NewProjectKind as public. #11700build to check. #11725toml v0.6 and toml_edit v0.18 for TOML manipulations. #11618clap v4.1.3. #11619winapi with windows-sys crate for Windows bindings. #11656url crate for percent encoding instead of percent-encoding. #11750--- is auto-converted into an em dash. (docs) #11646 #11715A-* and Command-*. #11664 #11679@revoked. #11635home crate is now a subcrate in rust-lang/cargo repository. Welcome! #11359 #11481net.git-fetch-with-cli enabled. #11579cargo build --verbose tells you more about why it recompiles. #11407fcntl. #11439 #11474cargo vendor generates a different source replacement entry for each revision from the same git repository. #10690.cargo/credentials.toml. If .cargo/credentials exists, writes to it for backward compatibility reasons. #11533cargo package and cargo publish now respects workspace's Cargo.lock. This is an expected behavior but previously got overlooked. #11477cargo vendor failing on resolving git dependencies inherited from a workspace. #11414cargo install can now correctly install root package when workspace.default-members is specified. #11067--help if there is no man page for a subcommand. #11473target.cfg(…).rustflags shouldn't erase build.rustdocflags. #11323profile.split-debuginfo options are now ignored, which previously made Cargo fail to compile on certain platforms. #11347 #11633auth-required: true without -Z sparse-registry #11661codegen-backend and rustflags in profiles in config file. #11562cargo clippy --fix when warnings/errors could be fixed with clippy. #11399optional = true. #11434Units with and without artifact targets. #11478cargo metadata supports artifact dependencies. #11550cargo remove now cleans up the referenced dependency of the root workspace manifest, profile, patch, and replace sections after a successful removal of a dependency. #11194 #11242 #11351cargo package and cargo publish now report total and compressed crate size after packaging. #11270$CARGO if it's already set in the environment, and forwards the value when executing external subcommands and build scripts. #11285cargo update --precise without a -p flag. #11349cargo fix on a git repo with uncommitted changes. #11400cargo tree -i <spec> cannot find any package. #11377cargo new/init and PATH env separator is in the project path. #11318cargo add/remove gets confused. #11186 #11375cargo init but existing ignore files aren't UTF-8. #11321cargo install .. #11401cargo clean for removing fingerprints and build script artifacts of only the requested package #10621cargo install --index not working when config registry.default is set. #11302atty to resolve potential soundness issue. #11420cargo fix when some compilation warnings/errors can be auto-fixed. #10989 #11368rustdoc-scrape-examples to be a target-level configuration. #10343 #11425 #11430 #11445wait-for-publish to work with sparse registry. #11356 #11327 #11388sparse+ prefix in the SourceId for sparse registries #11387 #11403registries.crates-io.protocol. #11350cargo remove command for removing dependencies from Cargo.toml. docs #11059 #11099 #11193 #11204 #11227Accept-Encoding header to registries. #11292--registry <NAME> when performing an API operation.registry.token).replace-with key can reference the name of an alternative registry in the [registries] table.cargo publish now blocks until it sees the published package in the index. #11062 #11210 #11216 #11255cargo --config <file> now takes priority over environment variables. This is a documented behaviour but the old implementation accidentally got it wrong. #11077target.cfg(…).rustflags more correctly and warns if that's not enough for convergence. #11114cargo add now reports unknown features in a more discoverable manner. #11098cargo login prompt receives empty input. #11145dep: with /. #11172package.publish is false in the manifest. #11280publish.timeout behind -Zpublish-timeout. docs #11230registry+sparse+. #11177registries.crates-io.protocol for controlling crates.io protocol. #11215sparse+ prefix for index.crates.io. #11247-Zsparse-registry. #11283PATH if it's already there. #11023rev field. #10807std::thread::scope instead of the crossbeam crate for spawning scoped threads. #10977available_parallelism instead of the num_cpus crate for determining the default parallelism. #10969rust-version requirement not satisfied. #10891cargo update now warns if --precise is given without --package flag. This will become a hard error after a transition period. #10988 #11011cargo bench and cargo test now report a more precise test execution error right after a test fails. #11028cargo add now tells you for which version the features are added. #11075workspace.package and workspace.dependencies for more details on how to define these common settings. #10859--crate-type flag to cargo rustc to override the crate type. #10838--target flags to build for multiple targets at once, and the build.target config option may now take an array of multiple targets. #10766--jobs argument can now take a negative number to count backwards from the max CPUs. #10844cargo install --path now supports path completion. #10798rev field. #10079cargo add will now update Cargo.lock. #10902cargo vendor now translates backslashes to forward slashes so that the settings should work across platforms. #10668workspace.default-members setting now allows a value of "." in a non-virtual workspace to refer to the root package. #10784os output in cargo --version --verbose now supports more platforms. #10802net.git-fetch-with-cli and interrupting the clone process. #10829cargo add --offline. #10817check-cfg in config.toml. #10799--config CLI option to pass config options directly on the CLI. #10755CARGO_PKG_RUST_VERSION environment variable is now set when compiling a crate if the manifest has the rust-version field set. #10713publish=false. #10701 #10767.json target spec file instead of its path. This should help avoid rebuilds if the path changes. #10746update=none strategy in .gitmodules is now honored, and the submodule will not be fetched. #10717cargo new now includes a slightly more realistic test structure that has use super::*; in the test module. #10706cargo add and cargo locate-project #10810 #10811-p being ignored with cargo publish in the root of a virtual workspace. Some additional checks were also added to generate an error if multiple packages were selected (previously it would pick the first one). #10677cargo test when using JSON output. #10691-Zcheck-cfg=output to support build-scripts declaring their supported set of cfg values with cargo:rustc-check-cfg. #10539-Z sparse-registry now uses https://index.crates.io/ when accessing crates-io. #10725.workspace key in cargo add for workspace inheritance. #10705/. #10698cargo add and workspace inheritance of the default-features key. #10685cargo add command for adding dependencies to Cargo.toml from the command-line. docs #10472 #10577 #10578name@version syntax in addition to the previous name:version to align with the behavior in cargo add and other tools. cargo install and cargo yank also now support this syntax so the version does not need to passed as a separate flag. #10582 #10650 #10597-F as an alias of --features. #10576git and registry directories in Cargo's home directory (usually ~/.cargo) are now marked as cache directories so that they are not included in backups or content indexing (on Windows). #10553--version flag to cargo yank to replace the --vers flag to be consistent with cargo install. #10575@ argfile support, which will use “response files” if the command-line to rustc exceeds the operating system's limit. #10546cargo clean now has a progress bar (if it takes longer than half a second). #10236cargo install no longer generates an error if no binaries were found to install (such as missing required features). #10508cargo test now passes --target to rustdoc if the specified target is the same as the host target. #10594cargo doc now automatically passes -Arustdoc::private-intra-doc-links when documenting a binary (which automatically includes --document-private-items). The private-intra-doc-links lint is only relevant when not documenting private items, which doesn't apply to binaries. #10142cargo --version output is now fixed to 9 characters. Previously the length was inconsistent between different platforms. #10579Cargo.toml.orig file will now result in an error. The filename would otherwise conflict with the automatically-generated file. #10551build.dep-info-basedir configuration setting now properly supports the use of .. in the path to refer to a parent directory. #10281cargo fetch now works with -Zbuild-std to fetch the standard library's dependencies. #10129-Zcheck-cfg which adds various forms of validating cfg expressions for unknown names and values. docs #10486 #10566--config CLI option no longer allows setting a registry token. #10580-Z rustdoc-scrape-examples. #10549 #10533cargo test --no-run will now display the path to the test executables. #10346cargo tree --duplicates no longer reports dependencies that are shared between the host and the target as duplicates. #10466cargo vendor no longer allows multiple values for --sync, you must pass multiple --sync flags instead. #10448proc_macro and proc-macro) #10316available_parallelism instead of the num_cpus crate for determining the default parallelism. #10427cargo search terms are now highlighted. #10425hg are now added after -- to avoid conflict with VCS flags. #10483http.timeout configuration value to actually work. #10456cargo rustc --crate-type not working in some situations. #10388-Z check-cfg-features to enable compile-time checking of features #10408-Z bindeps to support binary artifact dependencies (RFC-3028) #9992-Z multitarget is now supported in the build.target config value with an array. #10473--keep-going flag which will continue compilation even if one crate fails to compile. #10383[target.'cfg(<target>)'.dependencies] #10433-Z target-applies-to-host) #10395-Z check-cfg-features support for rustdoc #10428dep: prefix in the [features] table to refer to an optional dependency. This allows creating feature names with the same name as a dependency, and allows for “hiding” optional dependencies so that they do not implicitly expose a feature name. docs #10269dep-name?/feature-name syntax to the [features] table to only enable the feature feature-name if the optional dependency dep-name is already enabled by some other feature. docs #10269--timings option to generate an HTML report about build timing, concurrency, and CPU use. docs #10245"v" and "features2" fields to the registry index. The "v" field provides a method for compatibility with future changes to the index. docs #10269cargo clippy #10347cargo report #10295rustc-link-arg-tests, rustc-link-arg-examples, and rustc-link-arg-benches. docs #10274build.pipelining config option is now deprecated, pipelining will now always be enabled. #10258cargo new will now generate a .gitignore which only ignores Cargo.lock in the root of the repo, instead of any directory. #10379--features flag is now honored when used with the --all-features flag, which allows enabling features from other packages. #10337cargo add and other future enhancements. #10086dylib and cdylib is now an error, as this combination is not supported. #10243cargo --list now includes the help command. #10300cargo doc on examples with dev-dependencies. #10341cargo install --path for a path that is relative to a directory outside of the workspace in the current directory. #10335cargo test TEST_FILTER should no longer build binaries that are explicitly disabled with test = false. #10305term.verbose without term.quiet, and vice versa. #10429 #10436rustflags option to a profile definition. #10217--config to only support dotted keys. #10176rustflags not being gated in profile overrides. #10411 #10413strip option can now be specified in a profile to specify the behavior for removing symbols and debug information from binaries. docs #10088 #10376rustc may cause a package or any of its dependencies to stop building. docs #10165term.quiet configuration option to enable the --quiet behavior from a config file. docs #10152-r CLI option as an alias for --release. #10133cargo help <alias> will now show the target of the alias. #10193--host CLI option. #10145 #10327rustc. #10178doc=false setting is honored in the [lib] definition of a dependency. #10201 #10324"executable" field in the JSON option was incorrectly including the path to index.html when documenting a binary. It is now null. #10171--crate-type flag to cargo rustc. #10093rust_version field to package data in cargo metadata. #9967--message-format option to cargo install. #10107cargo tree entering an infinite loop with cyclical dev-dependencies. Fixed an edge case where the resolver would fail to handle a cyclical dev-dependency with a feature. #10103cargo clean -p when the directory path contains glob characters. #10072cargo which could panic when downloading a crate when the server has a redirect with a non-empty body. #10048examples directory to be included in the documentation. docs #9525 #10037 #10017cargo report future-incompatibilities to check stdout if it supports color. #10024test and bench profiles to inherit their settings from dev and release, and Cargo will now only use a single profile during a given command instead of using different profiles for dependencies and cargo-targets. docs #9943rev option for a git dependency now supports git references that start with refs/. An example where this can be used is to depend on a pull request from a service like GitHub before it is merged. #9859path_in_vcs field to the .cargo_vcs_info.json file. docs #9866RUSTFLAGS is no longer set for build scripts. This change was made in 1.55, but the release notes did not highlight this change. Build scripts should use CARGO_ENCODED_RUSTFLAGS instead. See the documentation for more details.cargo version command now includes some extra information. #9968cargo update --precise now allows specifying a version without semver metadata (stuff after + in the version number). #9945--example names. #9939CARGO_LOG) that may leak tokens. #9873cargo fix will now avoid writing fixes to the global registry cache. #9938-Z help CLI option when used with a shorthand alias (b/c/r/d). #9933rust-version field to Cargo.toml to specify the minimum supported Rust version, and the --ignore-rust-version command line option to override it. #9732[env] table to config files to specify environment variables to set. docs #9411[patch] tables may now be specified in config files. docs #9839cargo doc now supports the --example and --examples flags. #9808-p flag for cargo publish to publish a specific package in a workspace. cargo package also now supports -p and --workspace. #9559{sha256-checksum} placeholder for URLs in a registry config.json. docs #9801-q flag to show terse test output. #9730features used in a [replace] table now issues a warning, as they are ignored. #9681wasm32-unknown-emscripten executables are built without a hash in the filename. Previously it was all wasm32 targets. Additionally, all apple binaries are now built with a hash in the filename. This allows multiple copies to be cached at once, and matches the behavior on other platforms (except msvc). #9653cargo new now generates an example that doesn't generate a warning with clippy. #9796cargo fix --edition now only applies edition-specific lints. #9846cargo fix now has more debug logging available with the CARGO_LOG environment variable. #9831cargo fix --edition to emit a warning when on the latest stable edition when running on stable instead of generating an error. #9792cargo install will now determine all of the packages to install before starting the installation, which should help with reporting errors without partially installing. #9793cargo fix --edition now includes differences for dev-dependencies. #9803cargo fix will now show better diagnostics for abnormal errors from rustc. #9799cargo --list are now deduplicated. #9773cargo --list. #9764cargo recursively from proc-macros while running cargo fix. #9818[future-incompat-report] config section. #9774different-binary-name feature to support specifying a non-rust-identifier for a binary name. docs #9627cargo metadata now includes the "default_run" field from the manifest. #9550RUSTC_WRAPPER, RUSTC_WORKSPACE_WRAPPER, CARGO_ENCODED_RUSTFLAGS. RUSTFLAGS is no longer set for build scripts; they should use CARGO_ENCODED_RUSTFLAGS instead. docs #9601cargo d as an alias for cargo doc. #9680{lib} to the cargo tree --format option to display the library name of a package. #9663members_mut method to the Workspace API. #9547--all-targets, --bins, --tests, --examples, or --benches flags, a warning is now displayed to inform you that there were no matching targets. #9549cargo init detects whether or not existing source files represent a binary or library has been changed to respect the command-line flags instead of trying to guess which type it is. #9522cargo test which builds multiple copies of the same code in parallel. This also updates the warning summary to provide more context. #9675branch, tag, rev) on a non-git dependency are now an error. Additionally, specifying both git and path is now an error. #9689[patch] table entries of dependencies when possible. #9639features used in a [patch] table now issues a warning, as they are ignored. #9666target directory is now excluded from content indexing on Windows. #9635Cargo.toml is not found, the error message now detects if it was misnamed with a lowercase c to suggest the correct form. #9607diesel with the new resolver displays a compatibility notice. #9602opener dependency, which handles opening a web browser, which includes several changes, such as new behavior when run on WSL, and using the system xdg-open on Linux. #9583-- #9561cargo fix now supports rustc's suggestions with multiple spans. #9567cargo fix now fixes each target serially instead of in parallel to avoid problems with fixing the same file concurrently. #9677linker config value now trigger a rebuild. #9647--allow-dirty flag with cargo publish or cargo package. #9645cargo fix --edition for 2021. #9588cargo fix --edition on the 2021 edition. #9694cargo doc --open with doc.extern-map. #9531[env] environment variables are not allowed to set vars set by Cargo. #9579--prune option for cargo tree to limit what is displayed. #9520--depth option for cargo tree to limit what is displayed. #9499cargo tree -e no-proc-macro to hide procedural macro dependencies. #9488doc.browser config option to set which browser to open with cargo doc --open. #9473CARGO_TARGET_TMPDIR environment variable set for integration tests & benches. This provides a temporary or “scratch” directory in the target directory for tests and benches to use. #9375--features CLI flags now provide typo suggestions with the new feature resolver. #9420.crate published packages has changed slightly to avoid mtime values of 0. This was causing problems with lldb which refused to read those files. #9517cargo package. #9478cargo new with fossil now places the ignore settings in the new repository instead of using fossil settings to set them globally. This also includes several other cleanups to make it more consistent with other VCS configurations. #9469rustc-cdylib-link-arg applying transitively displays a warning that this was not intended, and may be an error in the future. #9563package.exclude in Cargo.toml using inverted exclusions (!somefile) when not in a git repository or when vendoring a dependency. #9186rerun-if-changed paths to be absolute paths. #9421110.0.0 and 110.0.0+1.1.0f). #9476cargo install with a semver metadata version. #9467report subcommand, and changed cargo describe-future-incompatibilitie to cargo report future-incompatibilities. #9438[host] table to the config files to be able to set build flags for host target. Also added target-applies-to-host to control how the [target] tables behave. #9322rustc-link-arg-* instructions to return an error if the target doesn't exist. #9523cargo:rustc-link-arg-bin instruction for build scripts. #9486HEAD branch is not “master”. This also includes a switch to the version 3 Cargo.lock format which can handle default branches correctly. #9133 #9397 #9384 #9392unpacked split-debuginfo. #9298authors field is no longer included in Cargo.toml for new projects. #9282cargo update may now work with the --offline flag. #9279cargo doc will now erase the doc directory when switching between different toolchain versions. There are shared, unversioned files (such as the search index) that can become broken when using different versions. #8640 #9404cargo doc detecting if the documentation needs to be rebuilt when changing some settings such as features. #9419cargo doc now deletes the output directory for the package before running rustdoc to clear out any stale files. #9419-C metadata value to always include all information for all builds. Previously, in some situations, the hash only included the package name and version. This fixes some issues, such as incremental builds with split-debuginfo on macOS corrupting the incremental cache in some cases. #9418man is in PATH. #9378rustc cache is now aware of RUSTC_WRAPPER and RUSTC_WORKSPACE_WRAPPER. #9348CARGO environment variable in the rebuild fingerprint if the code uses env!("CARGO"). #9363--future-incompat-report had nothing to report. #9263-Z and cargo-features) now provides more information. #9290Cargo.toml. docs #9030-Z help now displays all the -Z options. #9369-Zallow-features to specify which nightly features are allowed to be used. #9283cargo config subcommand. #9302RUSTC_BOOTSTRAP on stable. #9181 #9385CARGO_TARGET_DIR is an empty string. #8939--message-format flag into the test so that the “short” format can now be used for doc tests. #9128cargo test now prints a clearer indicator of which target is currently running. #9195CARGO_TARGET_<TRIPLE> environment variable will now issue a warning if it is using lowercase letters. #9169Cargo.toml. #9300 #9304-p flag. #9188lto=off is set. #9182strip profile option now supports true and false values. #9153cargo fix --edition now displays a report when switching to 2021 if the new resolver changes features. #9268[patch] table support in .cargo/config files. #9204cargo describe-future-incompatibilities for generating a report on dependencies that contain future-incompatible warnings. #8825cargo fix --edition now supports 2021. #9184--print flag to cargo rustc to pass along to rustc to display information from rustc. #9002-Zdoctest-in-workspace for changing the directory where doctests are run versus where they are compiled. #9105[env] section in .cargo/config.toml to set environment variables when running cargo. #9175features2 field to the index. #9161split-debuginfo profile option. docs #9112path field to cargo metadata for the package dependencies list to show the path for “path” dependencies. #8994resolver = "2" option. See the CLI and resolver 2 CLI options for the new CLI behavior. And, finally, see RFC 2957 for a detailed look at what has changed. #8997cargo install --locked now emits a warning if Cargo.lock is not found. #9108cargo vendor #8937 #9131 #9132cargo test and cargo run when the build script runs multiple times during the same build session. #9122cargo doc and the new feature resolver. This also introduces some heuristics to try to avoid path collisions with rustdoc by only documenting one variant of a package if there are multiple (such as multiple versions, or the same package shared for host and target platforms). #9077links environment variables (DEP_*) not showing up for testing packages in some cases. #9065resolver="2". #9059http.proxy setting in ~/.gitconfig. #8986cargo doc when there are colliding output filenames in a workspace. #9276 #9277cargo install from exiting with success if one of several packages did not install successfully. #9185 #9196publish-lockfile unstable feature, it was stabilized without the need for an explicit flag 1.5 years ago. #9092-Z flag, or specified with cargo-features in Cargo.toml). #9092rust-version field in project metadata. #8037doc 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 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. #7344[email protected]/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