cargo-semver-checks 0.43.0

Scan your Rust crate for semver violations.
Documentation 
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SemverQuery(
    id: "trait_method_target_feature_removed",
    human_readable_name: "pub trait method target feature removed",
    description: "A method in a public, non-sealed trait no longer requires some #[target_feature].",
    required_update: Major,
    lint_level: Deny,
    reference_link: Some("https://github.com/rust-lang/rust/issues/139368"),
    query: r#"
    {
        CrateDiff {
            baseline {
                item {
                    ... on Trait {
                        visibility_limit @filter(op: "=", value: ["$public"]) @output
                        public_api_sealed @filter(op: "=", value: ["$false"])

                        importable_path {
                            path @output @tag
                            public_api @filter(op: "=", value: ["$true"])
                        }

                        method {
                            public_api_eligible @filter(op: "=", value: ["$true"])
                            method_name: name @output @tag

                            requires_feature {
                                explicit @filter(op: "=", value: ["$true"])
                                globally_enabled @filter(op: "=", value: ["$false"])
                                feature: name @output @tag
                            }
                        }
                    }
                }
            }
            current {
                item {
                    ... on Trait {
                        visibility_limit @filter(op: "=", value: ["$public"])
                        unconditionally_sealed @filter(op: "=", value: ["$false"])

                        importable_path {
                            path @filter(op: "=", value: ["%path"])
                            public_api @filter(op: "=", value: ["$true"])
                        }

                        method {
                            name @filter(op: "=", value: ["%method_name"])
                            public_api_eligible @filter(op: "=", value: ["$true"])

                            requires_feature @fold @transform(op: "count") @filter(op: "=", value: ["$zero"]) {
                                name @filter(op: "=", value: ["%feature"])
                            }

                            span_: span @optional {
                                filename @output
                                begin_line @output
                                end_line @output
                            }
                        }
                    }
                }
            }
        }
    }"#,
    arguments: {
        "public": "public",
        "true": true,
        "false": false,
        "zero": 0,
    },
    error_message: "A trait method no longer requires the CPU target features it previously needed. Downstream implementations of this method may still require the previous set of target features without a compile error, so they will unexpectedly be imposing that additional safety requirement that the trait no longer imposes. New callers of this method on such impls may be unsound as a result, since they might adhere to the trait's narrower set of target features instead of the impl's wider set.",
    per_result_error_template: Some(r#"{{join "::" path}}::{{method_name}} removed requirement for {{feature}} in {{span_filename}}:{{span_begin_line}}"#),
    witness: None,
)