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ar_archive_writer
Dependency object 0.37.1 is slightly outdated
Consider upgrading to 0.38.1 to get all the fixes and improvements.
In Cargo, different 0.x versions are considered incompatible, so this is a semver-major upgrade.
Missing categories
Categories improve browsing of lib.rs and crates.io. Add
categories = ["development-tools::build-utils"]to theCargo.toml.Even if there are no categories that fit precisely, pick one that is least bad. You can also propose new categories in crates.io issue tracker.
twiggy
Dependency structopt 0.3 has issues
It has been losing active users, which may be a sign it's deprecated or obsolete. Consider replacing it with a different crate.
License Apache-2.0/MIT is not in SPDX syntax
Use
ORinstead of/.Missing keywords
Help users find your crates. Add
keywords = ["code-size", "profiler", "wasm", "wasm-binary"](up to 5) to theCargo.toml. Best keywords are alternative terms or their spellings that aren't in the name or description. Also add a keyword that precisely categorizes this crate and groups it with other similar crates.Published crate contains binary files
The crate contains binary files (ELF exe/lib). Crates are meant to be compiled from source. Please check that you haven't published temporary build files by accident. If you have test fixtures, consider excluding them from crates-io tarball, since Cargo doesn't run tests from crates-io packages.
libbz2-rs-sys-cdylib
Failed to verify create's content against its repository
Partially verified 8 files (includes 3 Cargo-generated).
- warning: Crate tarball has been published from a different commit than the commit tagged by git tag 'v0.2.2'.
- Create git tags after comitting any changes, and commit changes after bumping versions and running
cargo update.
- Create git tags after comitting any changes, and commit changes after bumping versions and running
Files in the crates.io crate compared to the repository:
Cargo.lockdoes not match the repository.
Looked for the crate in
libbz2-rs-sys-cdylib/. Fetchedhttps://github.com/trifectatechfoundation/libbzip2-rs.gitde9e3598d9eb9e608e799839e01964dcd6b6fc33.Checked on 2025-08-10
This check is experimental.
- warning: Crate tarball has been published from a different commit than the commit tagged by git tag 'v0.2.2'.
Missing keywords
Help users find your crates. Add
keywords = ["cdylib", "libbz2", "drop-in", "compression", "replace"](up to 5) to theCargo.toml. Best keywords are alternative terms or their spellings that aren't in the name or description. Also add a keyword that precisely categorizes this crate and groups it with other similar crates.
bzip2-sys
License MIT/Apache-2.0 is not in SPDX syntax
Use
ORinstead of/.Missing keywords
Help users find your crates. Add
keywords = ["compression", "decompression", "libbz2", "libbzip2"](up to 5) to theCargo.toml. Best keywords are alternative terms or their spellings that aren't in the name or description. Also add a keyword that precisely categorizes this crate and groups it with other similar crates.Needs more categories
Please more specific categories that describe functionality of the crate. Expand
categories = ["compression", "external-ffi-bindings"]in yourCargo.toml.No readme property
Specify path to a
READMEfile for the project, so that information about is included in the crates.io tarball.Using outdated edition for no reason
We estimate that this crate requires at least Rust 1.51, which is newer than the last 2015-edition compiler. You can upgrade without breaking any compatibility. Run
cargo fix --editionand updateedition="…"inCargo.toml.Using the latest edition helps avoid old quirks of the compiler, and ensures Rust code has consistent syntax and behavior across all projects.
pretty_backtrace
Dependency addr2line 0.9.0 is significantly outdated
Upgrade to 0.26.0 to get all the fixes, and avoid causing duplicate dependencies in projects.
Dependency findshlibs 0.4.0 is significantly outdated
Upgrade to 0.10.2 to get all the fixes, and avoid causing duplicate dependencies in projects.
Dependency gimli 0.18.0 is significantly outdated
Upgrade to 0.33.0 to get all the fixes, and avoid causing duplicate dependencies in projects.
Dependency object 0.12.0 is significantly outdated
Upgrade to 0.38.1 to get all the fixes, and avoid causing duplicate dependencies in projects.
Dependency syntect 3.0.2 is significantly outdated
Upgrade to 5.3.0 to get all the fixes, and avoid causing duplicate dependencies in projects.
Easy way to bump dependencies:
cargo install cargo-edit; cargo upgrade -i; Also check out Dependabot service on GitHub.Latest stable release is old
It's been over 6 years. Is this crate still maintained? Make a new release, either to refresh it, or to set
[badges.maintenance] status = "deprecated"(or
"as-is","passively-maintained").If the crate is truly stable, why not make a 1.0.0 release?
Missing categories
Categories improve browsing of lib.rs and crates.io. Add
categories = ["development-tools::debugging"]to theCargo.toml.Missing keywords
Help users find your crates. Add
keywords = ["backtrace", "pretty", "force-setup", "colored", "panic"](up to 5) to theCargo.toml. Best keywords are alternative terms or their spellings that aren't in the name or description. Also add a keyword that precisely categorizes this crate and groups it with other similar crates.
sudo-rs
Missing keywords
Help users find your crates. Add
keywords = ["memory-safety", "su", "audit", "linux", "os"](up to 5) to theCargo.toml. Best keywords are alternative terms or their spellings that aren't in the name or description. Also add a keyword that precisely categorizes this crate and groups it with other similar crates.
libbz2-rs-sys
Missing keywords
Help users find your crates. Add
keywords = ["compression", "bzip2", "api-compatible", "part", "drop-in"](up to 5) to theCargo.toml. Best keywords are alternative terms or their spellings that aren't in the name or description. Also add a keyword that precisely categorizes this crate and groups it with other similar crates.
libbz2-rs-sys, libbz2-rs-sys-cdylib, libzstd-rs-sys
Missing categories
Categories improve browsing of lib.rs and crates.io. Add
categories = ["compression"]to theCargo.toml.
split_tokens
Latest stable release is old
It's been over 9 years. Is this crate still maintained? Make a new release, either to refresh it, or to set
[badges.maintenance] status = "deprecated"(or
"as-is","passively-maintained").The Cargo package has no git commit information
Before publishing a package, make sure all packaged files are committed to the repository, and there are no "dirty" files. Push this commit to crate's public repository.
To protect against supply chain attacks similar to CVE-2024-3094, lib.rs will soon start flagging non-reproducible packages without public source code as suspicious. Currently only git repositories are supported (but may be hosted anywhere, not just GitHub). If you'd like a different SCM supported, please file a feature request.
Missing categories
Categories improve browsing of lib.rs and crates.io. Add
categories = ["rust-patterns"]to theCargo.toml.
libzstd-rs-sys
No repository property
Specify git repository URL in
Cargo.tomlto help users find more information, contribute, and for lib.rs to read more info.Missing keywords
Help users find your crates. Add
keywords = ["zstd", "compression", "decompression", "work-in-progress", "ready"](up to 5) to theCargo.toml. Best keywords are alternative terms or their spellings that aren't in the name or description. Also add a keyword that precisely categorizes this crate and groups it with other similar crates.
slog-notify
Missing categories
Categories improve browsing of lib.rs and crates.io. Add
categories = ["…"]to theCargo.toml.Dependency notify-rust 3.2 is significantly outdated
Upgrade to 4.12.0 to get all the fixes, and avoid causing duplicate dependencies in projects.
The Cargo package has no git commit information
Before publishing a package, make sure all packaged files are committed to the repository, and there are no "dirty" files. Push this commit to crate's public repository.
Imprecise dependency requirement slog = 2
Cargo does not always pick latest versions of dependencies! Specify the version as
slog = "2.8.0". IfCargo.lockends up having an unexpectedly old version of the dependency, you might get a dependency that lacks features/APIs or important bugfixes that you depend on. This is most likely to happen when using theminimal-versionsflag, used by users of old Rust versions.If you want to keep using truly minimal dependency requirements, please make sure you test them in CI with
-Z minimal-versionsCargo option, because it's very easy to accidentally use a feature added in a later version.
rustc_codegen_cranelift
Crate is 'reserved'
Please be respectful of crates.io and don't squat crate names.
It's OK if you intend to publish this project in the near future. Keep in mind that even if you have good intentions, things may not go as planned. crates.io won't reclaim abandoned crates, so reserving good names may end up wasting the good names.
README missing from crate tarball
Cargo sometimes fails to package the
READMEfile. Ensure the path to theREADMEinCargo.tomlis valid, and points to a file inside the crate's directory.
No issues found in: bzip2
If some of these crates are unmaintained and shouldn't be checked, yank them or add [badges.maintenance] to their
status = "deprecated"Cargo.toml.