Lib.rs

Issues found

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• virtiofsd

  • Dependency env_logger 0.8.4 is significantly outdated

    Upgrade to 0.11.8 to get all the fixes, and avoid causing duplicate dependencies in projects.

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

    env_logger versions

  • Dependency bitflags 1.2 is outdated

    Upgrade to 2.9.0 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.

    bitflags versions

  • Dependency libseccomp-sys 0.2 is a bit outdated

    Consider upgrading to 0.3.0 to get all the fixes and improvements.

    libseccomp-sys versions

  • Dependency syslog 6.1 is outdated

    Consider upgrading to 7.0.0 to get all the fixes and improvements.

    syslog versions

  • Imprecise dependency requirement clap = 4

    Cargo does not always pick latest versions of dependencies! Specify the version as clap = "4.5.37". 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.

    clap versions

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["filesystem"] 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

  • Missing keywords

    Help users find your crates. Add keywords = ["inode", "handle", "daemon", "flags", "mnt"] (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.

  • Using outdated edition for no reason

    We estimate that this crate requires at least Rust 1.77, which is newer than the last 2018-edition compiler. You can upgrade without breaking any compatibility. Run cargo fix --edition and update edition="…" in Cargo.toml.

    Using the latest edition helps avoid old quirks of the compiler, and ensures Rust code has consistent syntax and behavior across all projects.

    The Edition Guide

• vhost

  • 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

  • Failed to verify create's content against its repository

    Partially verified 28 files (includes 2 Cargo-generated).

    • warning: Crate tarball has been published from a different commit than the commit tagged by git tag 'vhost-v0.13.0'.
      • Create git tags after comitting any changes, and commit changes after bumping versions and running cargo update.

    Looked for the crate in vhost/. Fetched https://github.com/rust-vmm/vhost.git 29246a211fe03423e56c236eebffbc5e167ce63a.

    Checked on 2024-11-07

    This check is experimental.

    Forum thread

• vhost-user-backend

  • Failed to verify create's content against its repository

    Partially verified 12 files (includes 2 Cargo-generated).

    • warning: The crates.io package has no information about its path inside its repository.

    Looked for the crate in vhost-user-backend/. Fetched https://github.com/rust-vmm/vhost.git 29246a211fe03423e56c236eebffbc5e167ce63a.

    Checked on 2025-04-27

    Forum thread

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["hardware-support", "os"] to the Cargo.toml.

    List of available categories

  • Optional dependency 'userfaultfd' 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 'userfaultfd' may have been unintentional.

    Crate features

• vhost, virtiofsd, vhost-user-backend

  • Dependency vmm-sys-util 0.12.1 is outdated

    Upgrade to 0.13.0 to get all the fixes, and avoid causing duplicate dependencies in projects.

    vmm-sys-util versions

• vhost, ublk

  • Missing categories

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

    List of available categories

• ublk-sys

  • Missing categories

    Categories improve browsing of lib.rs and crates.io. Add categories = ["os::macos-apis"] to the Cargo.toml.

    List of available categories

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