style: enforce clippy::useless_format - #264
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Add a [lints.clippy] table that denies clippy::all so new lint violations fail CI. The lints that already fired when clippy was re-enabled are allow-listed as tracked backlog, to be removed one class per stacked PR. This PR also clears the first class: rewrite the 46 bool_assert_comparison violations (assert_eq!(expr, true/false) -> assert!(expr) / assert!(!(expr))) across the comparison matcher tests and one util test, so that lint is enforced rather than allowed.
The test, coverage, and feature-combination jobs inherit the default `-D warnings` from setup-rust-toolchain, so rustc warnings that surfaced when `#![allow(warnings)]` was removed failed CI as hard errors. Add a [lints.rust] table mirroring [lints.clippy]: gate the `warnings` group at deny so regressions fail CI, and allow-list the existing backlog (dead_code, unused_*, private_bounds, mismatched_lifetime_syntaxes) to be burned down one class per stacked PR. Denying via the manifest keeps local dev and CI consistent.
mismatched_lifetime_syntaxes does not exist on the 1.88.0 MSRV toolchain, and the newly-denied `warnings` group escalates the resulting unknown_lints warning to an error. Allow unknown_lints so lint names that only exist on newer toolchains are silently ignored on older ones.
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Removes
useless_formatfrom the Clippy allow-list and passes the fallback certificate error message directly toexpect. This tightens linting without changing runtime behavior.Depends on #238.
Checks:
cargo fmt --all -- --check;cargo +stable clippy --all-targets --all-features.