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backlog#1823 step 8, partial. The swift module carries 43 #[allow(dead_code)] attributes, most with a comment naming a consumer: "Used by handler", "Handler integration: GET container", "Used by handler and object.rs". Every one of them suppresses nothing. crates/protocols/src/lib.rs declares `pub mod swift`, and swift/mod.rs declares all 22 submodules `pub mod`, so every item is publicly reachable and dead_code never applied to it. Removing all 43 leaves the warning count at zero, in both the default and --features swift lanes. That is also why those comments survived. They assert who calls the item — a claim the compiler normally settles on its own — and the compiler had been silenced by the visibility chain. The rest of step 8 needs a decision this PR does not make. Downgrading the 22 submodules to `pub(crate) mod` does restore detection, and it surfaces 39 real items, 16 of them the whole of sync.rs: SyncConfig, SyncStatus, SyncQueueEntry, ConflictResolution and every function and constant around them, i.e. Swift container sync is built and never wired. But the `pub mod` chain is load-bearing. Six integration tests under crates/protocols/tests are separate crates that import the submodules directly (swift::quota, swift::slo, swift::symlink, swift::sync, swift::tempurl, swift::container), and the downgrade fails to compile them. Restoring dead-code detection for this module therefore depends on first deciding whether those tests move in-crate — which is a testing-strategy call, not a cleanup one. Verification: cargo check -p rustfs-protocols warning-free in the default lane and with --features swift (lib and --tests); clippy --features swift --lib --tests -D warnings clean; cargo nextest run -p rustfs-protocols --features swift 441 passed; make pre-commit exit 0. Ref rustfs/backlog#1823 (step 8).