Lib.rs

Issues found

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• object_store

  • Dependency md-5 0.10.6 is a bit outdated

    Consider upgrading to 0.11.0 to get all the fixes and improvements.

    In Cargo, different 0.x versions are considered incompatible, so this is a semver-major upgrade.

    md-5 versions

  • Dependency quick-xml 0.39.0 is outdated

    Upgrade to 0.40.0 to get all the fixes, and avoid causing duplicate dependencies in projects.

    quick-xml versions

  • Dependency reqwest 0.12 is outdated

    Upgrade to 0.13.3 to get all the fixes, and avoid causing duplicate dependencies in projects.

    reqwest versions

  • Imprecise dependency requirement walkdir = 2

    Cargo does not always pick latest versions of dependencies! Specify the version as walkdir = "2.5.0". If Cargo.lock ends 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 the minimal-versions flag, 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-versions Cargo option, because it's very easy to accidentally use a feature added in a later version.

    walkdir versions

  • License MIT/Apache-2.0 is not in SPDX syntax

    Use OR instead of /.

    SPDX license list

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["web-programming"] to the Cargo.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.

    List of available categories

  • Optional dependency 'reqwest' exposed as an implicit feature

    Cargo automatically makes publicly-available crate features for every optional dependency, unless the dependencies are referenced using dep: syntax. Features 'reqwest', 'rand', 'rustls-pki-types', 'quick-xml', 'form_urlencoded', 'base64', 'serde', 'md-5', 'http-body-util', 'ring', 'hyper', 'serde_urlencoded', 'serde_json', 'walkdir', 'httparse' may have been unintentional.

    Crate features

• datafusion

  • Dependency rand 0.9 is outdated

    Upgrade to 0.10.1 to get all the fixes, and avoid causing duplicate dependencies in projects.

    rand versions

  • Dependency sqlparser 0.61.0 is outdated

    Upgrade to 0.62.0 to get all the fixes, and avoid causing duplicate dependencies in projects.

    sqlparser versions

  • Failed to verify create's content against its repository

    Verified 76 out of 77 files (includes 2 Cargo-generated).

    • warning: The crates.io package has no commit hash associated with it.
      • Publish a new version, without using --allow-dirty flag. Make sure all changes are committed before publishing. Use include/exclude in Cargo.toml to omit unnecessary files.

    Files in the crates.io crate compared to the repository:

    • Cargo.lock not found.
    • README.md does not match the repository.
    • README.md exists, but elsewhere in the repo.

    Looked for the crate in datafusion/core/. Fetched https://github.com/apache/datafusion.git tagged 53.1.0 (eae7bf4fa1c037c0a065d1f36d0669f5bb97a9cf).

    Checked on 2026-04-19

    This check is experimental.

    Forum thread

  • Imprecise dependency requirement tempfile = 3

    Cargo does not always pick latest versions of dependencies! Specify the version as tempfile = "3.27.0". If Cargo.lock ends 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 the minimal-versions flag, used by users of old Rust versions.

    tempfile versions

  • Optional dependency 'sqlparser' exposed as an implicit feature

    Cargo automatically makes publicly-available crate features for every optional dependency, unless the dependencies are referenced using dep: syntax. Features 'sqlparser', 'bzip2', 'zstd', 'datafusion-sql', 'datafusion-datasource-parquet', 'datafusion-functions-nested', 'flate2', 'liblzma', 'datafusion-datasource-avro' may have been unintentional.

    Crate features

• object_store, datafusion, arrow-select, arrow-cast, arrow-schema, arrow-ipc, arrow-buffer, arrow-array, arrow-flight, arrow-arith, arrow-json, arrow-data, arrow-ord, arrow-string

  • 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.

    More info

• datafusion, arrow-select, arrow-schema, arrow-flight

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["database"] to the Cargo.toml.

    List of available categories

• datafusion-expr

  • Imprecise dependency requirement serde_json = 1

    Cargo does not always pick latest versions of dependencies! Specify the version as serde_json = "1.0.149". If Cargo.lock ends 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 the minimal-versions flag, used by users of old Rust versions.

    This crate does not bump semver-minor when adding new features, so to be safe you get all the features/APIs/fixes that your crate depends on, require a more specific patch version.

    serde_json versions

  • Dependency sqlparser 0.61.0 is outdated

    Upgrade to 0.62.0 to get all the fixes, and avoid causing duplicate dependencies in projects.

    sqlparser versions

  • Failed to verify create's content against its repository

    Partially verified 53 files (includes 2 Cargo-generated).

    • warning: The crates.io package has no commit hash associated with it.
      • Publish a new version, without using --allow-dirty flag. Make sure all changes are committed before publishing. Use include/exclude in Cargo.toml to omit unnecessary files.

    Files in the crates.io crate compared to the repository:

    • Cargo.lock not found.

    Looked for the crate in datafusion/expr/. Fetched https://github.com/apache/datafusion.git tagged 53.1.0 (eae7bf4fa1c037c0a065d1f36d0669f5bb97a9cf).

    Checked on 2026-04-19

    Forum thread

  • Optional dependency 'sqlparser' exposed as an implicit feature

    Cargo automatically makes publicly-available crate features for every optional dependency, unless the dependencies are referenced using dep: syntax. Feature 'sqlparser' may have been unintentional.

    Crate features

• datafusion-common

  • Dependency hashbrown 0.16.1 is significantly outdated

    Upgrade to 0.17.1 to get all the fixes, and avoid causing duplicate dependencies in projects.

    hashbrown versions

  • Dependency sqlparser 0.61.0 is outdated

    Upgrade to 0.62.0 to get all the fixes, and avoid causing duplicate dependencies in projects.

    sqlparser versions

  • Failed to verify create's content against its repository

    Partially verified 63 files (includes 2 Cargo-generated).

    • warning: The crates.io package has no commit hash associated with it.
      • Publish a new version, without using --allow-dirty flag. Make sure all changes are committed before publishing. Use include/exclude in Cargo.toml to omit unnecessary files.

    Files in the crates.io crate compared to the repository:

    • Cargo.lock not found.

    Looked for the crate in datafusion/common/. Fetched https://github.com/apache/datafusion.git tagged 53.1.0 (eae7bf4fa1c037c0a065d1f36d0669f5bb97a9cf).

    Checked on 2026-04-19

    Forum thread

  • Optional dependency 'apache-avro' exposed as an implicit feature

    Cargo automatically makes publicly-available crate features for every optional dependency, unless the dependencies are referenced using dep: syntax. Features 'apache-avro', 'sqlparser' may have been unintentional.

    Crate features

• arrow-select, arrow-cast, arrow-schema, arrow-buffer, arrow-array, arrow-arith, arrow-data, arrow-ord, arrow-string

  • No readme property

    Specify path to a README file for the project, so that information about is included in the crates.io tarball.

• arrow-cast

  • Imprecise dependency requirement comfy-table = 7

    Cargo does not always pick latest versions of dependencies! Specify the version as comfy-table = "7.2.0". If Cargo.lock ends 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 the minimal-versions flag, used by users of old Rust versions.

    comfy-table versions

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["value-formatting"] to the Cargo.toml.

    List of available categories

  • Optional dependency 'comfy-table' exposed as an implicit feature

    Cargo automatically makes publicly-available crate features for every optional dependency, unless the dependencies are referenced using dep: syntax. Feature 'comfy-table' may have been unintentional.

    Crate features

• datafusion-cli, arrow-csv, datafusion-expr, ballista, datafusion-common, arrow-row, arrow-integration-test

  • 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.

    More info

• arrow-row

  • No readme property

    Specify path to a README file for the project, so that information about is included in the crates.io tarball.

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["algorithms"] to the Cargo.toml.

    List of available categories

• ballista

  • Dependency datafusion 52 is outdated

    Upgrade to 53.1.0 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.

    datafusion versions

  • Imprecise dependency requirement datafusion = 52

    Cargo does not always pick latest versions of dependencies! Specify the version as datafusion = "53.1.0". If Cargo.lock ends 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 the minimal-versions flag, used by users of old Rust versions.

    datafusion versions

  • Missing keywords

    Help users find your crates. Add keywords = ["data-fusion", "apache-arrow", "ballista-distributed-compute", "query-engine", "session-context"] (up to 5) to the Cargo.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.

  • Optional dependency 'ballista-scheduler' exposed as an implicit feature

    Cargo automatically makes publicly-available crate features for every optional dependency, unless the dependencies are referenced using dep: syntax. Features 'ballista-scheduler', 'ballista-executor' may have been unintentional.

    Crate features

• datafusion-cli

  • Dependency rustyline 17.0 is outdated

    Upgrade to 18.0.0 to get all the fixes, and avoid causing duplicate dependencies in projects.

    rustyline versions

  • Failed to verify create's content against its repository

    Partially verified 51 files (includes 2 Cargo-generated).

    • warning: The crates.io package has no commit hash associated with it.
      • Publish a new version, without using --allow-dirty flag. Make sure all changes are committed before publishing. Use include/exclude in Cargo.toml to omit unnecessary files.

    Files in the crates.io crate compared to the repository:

    • Cargo.lock not found.

    Looked for the crate in datafusion-cli/. Fetched https://github.com/apache/datafusion.git tagged 53.1.0 (eae7bf4fa1c037c0a065d1f36d0669f5bb97a9cf).

    Checked on 2026-04-19

    Forum thread

  • Missing keywords

    Help users find your crates. Add keywords = ["apache-arrow", "query-engine", "sql", "command-line-client", "data-fusion-query"] (up to 5) to the Cargo.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.

• mongodb-arrow-connector

  • Dependency arrow >= 7, < 13 is significantly outdated

    Upgrade to 58.3.0 to get all the fixes, and avoid causing duplicate dependencies in projects.

    arrow versions

  • docs.rs build failed

    docs.rs site failed to build the crate, so users will have trouble finding the documentation. Docs.rs supports multiple platforms and custom configurations, so you can make the build work even if normal crate usage has special requirements.

    Docs.rs doesn't need to run or even link any code, so system dependencies can simply be skipped. You can also set cfg() flags just for docs.rs and use them to hide problematic code.

    Detecting docs.rs

  • Dependency bson 2 is a bit outdated

    Consider upgrading to 3.1.0 to get all the fixes and improvements.

    bson versions

  • Dependency mongodb 2 is outdated

    Upgrade to 3.6.0 to get all the fixes, and avoid causing duplicate dependencies in projects.

    mongodb versions

  • Imprecise dependency requirement arrow = >= 7, < 13

    Cargo does not always pick latest versions of dependencies! Specify the version as arrow = "58.3.0". If Cargo.lock ends 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 the minimal-versions flag, used by users of old Rust versions.

    arrow versions

  • Latest stable release is old

    It's been over 4 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?

    Maintenance status field docs

• arrow-ipc

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["parser-implementations"] to the Cargo.toml.

    List of available categories

  • Optional dependency 'lz4_flex' exposed as an implicit feature

    Cargo automatically makes publicly-available crate features for every optional dependency, unless the dependencies are referenced using dep: syntax. Feature 'lz4_flex' may have been unintentional.

    Crate features

• arrow-flight

  • Imprecise dependency requirement bytes = 1

    Cargo does not always pick latest versions of dependencies! Specify the version as bytes = "1.11.0". If Cargo.lock ends 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 the minimal-versions flag, used by users of old Rust versions.

    bytes versions

  • Missing keywords

    Help users find your crates. Add keywords = ["flight-sql", "apache-arrow-flight", "documentation"] (up to 5) to the Cargo.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.

• arrow-schema

  • Optional dependency 'bitflags' exposed as an implicit feature

    Cargo automatically makes publicly-available crate features for every optional dependency, unless the dependencies are referenced using dep: syntax. Feature 'bitflags' may have been unintentional.

    Crate features

• arrow-buffer

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["rust-patterns"] to the Cargo.toml.

    List of available categories

• parquet-format

  • Dependency thrift 0.13 is significantly outdated

    Upgrade to 0.17.0 to get all the fixes, and avoid causing duplicate dependencies in projects.

    thrift versions

  • Latest stable release is old

    It's been over 5 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").

    Users pay attention to the latest release date. Even if the crate is perfectly fine as-is, users may not know that.

    Maintenance status field docs

• arrow-array

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["database", "rust-patterns"] to the Cargo.toml.

    List of available categories

• arrow-arith

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["database", "mathematics"] to the Cargo.toml.

    List of available categories

• arrow-json

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["encoding"] to the Cargo.toml.

    List of available categories

• arrow-data

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["data-structures", "database"] to the Cargo.toml.

    List of available categories

• arrow-ord

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["database-implementations"] to the Cargo.toml.

    List of available categories

• arrow-string

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["text-processing"] to the Cargo.toml.

    List of available categories

• datafusion-cli, datafusion-expr, ballista, datafusion-common, parquet-format

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["database"] to the Cargo.toml.

    List of available categories

• arrow-csv

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["parser-implementations", "encoding"] to the Cargo.toml.

    List of available categories

• arrow-integration-test

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["development-tools::testing"] to the Cargo.toml.

    List of available categories

  • No readme property

    Specify path to a README file for the project, so that information about is included in the crates.io tarball.

• parquet_derive

  • Internal error

    We couldn't check this crate at this time, because: timed out validating Origin( lib.rs/crates/parquet_derive ). Please try again later.

• parquet

  • Internal error

    We couldn't check this crate at this time, because: timed out validating Origin( lib.rs/crates/parquet ). Please try again later.

• arrow

  • Internal error

    We couldn't check this crate at this time, because: Validation of Origin( lib.rs/crates/arrow ) failed. Please try again later.

• parquet-geospatial

  • Internal error

    We couldn't check this crate at this time, because: Validation of Origin( lib.rs/crates/parquet-geospatial ) failed. Please try again later.

• datafusion-sqllogictest

  • Internal error

    We couldn't check this crate at this time, because: Validation of Origin( lib.rs/crates/datafusion-sqllogictest ) failed. Please try again later.

If some of these crates are unmaintained and shouldn't be checked, yank them or add [badges.maintenance]
status = "deprecated" to their Cargo.toml.