cargo-semver-checks 0.45.0

Scan your Rust crate for semver violations.
Documentation 
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SemverQuery(
    id: "feature_missing",
    human_readable_name: "package feature removed or renamed",
    description: "A feature has been removed from this package's Cargo.toml.",
    required_update: Major,
    lint_level: Deny,
    reference_link: Some("https://doc.rust-lang.org/cargo/reference/semver.html#cargo-feature-remove"),
    query: r#"
    {
        CrateDiff {
            baseline {
                feature {
                    # Until cargo ships with support for private and/or unstable feature names,
                    # we'll rely on feature names to detect whether to flag feature removals.
                    #
                    # This lint will ignore features that match any of the following:
                    # - start with an underscore (`_`) character
                    # - are named `unstable`, `nightly`, or `bench`
                    # - have a prefix of `unstable`, `nightly`, or `bench` followed by
                    #   a dash (`-`) or underscore (`_`) character.
                    #
                    # Cargo tracking issues:
                    # - unstable/nightly features: https://github.com/rust-lang/cargo/issues/10881
                    # - private/hidden features: https://github.com/rust-lang/cargo/issues/10882
                    name @tag
                         @filter(op: "not_regex", value: ["$unstable_feature_pattern"])
                         @filter(op: "not_has_prefix", value: ["$underscore"])
                         @output

                    # An explicit ordering key is needed since we don't have span information,
                    # which what we usually use to order results in tests.
                    name @output(name: "ordering_key")
                }
            }
            current {
                feature @fold @transform(op: "count") @filter(op: "=", value: ["$zero"]) {
                    name @filter(op: "=", value: ["%name"])
                }
            }
        }
    }"#,
    arguments: {
        "zero": 0,
        "unstable_feature_pattern": "^(?:unstable|nightly|bench)(?:[-_].*)?$",
        "underscore": "_",
    },
    error_message: "A feature has been removed from this package's Cargo.toml. This will break downstream crates which enable that feature.",
    per_result_error_template: Some("feature {{name}} in the package's Cargo.toml"),
    // TODO: It's currently not possible to write witnesses for manifest lints,
    //       since we'd need to generate a *Cargo.toml* witness instead of a Rust code witness.
    //       Issue: https://github.com/obi1kenobi/cargo-semver-checks/issues/1008
    witness: None,
)