warning: variants `Irq` and `Dma` are never constructed
   --> <project>/reports/os-implementation/K1415-device-driver-match-local-EN76YN/mutant/kernel/tests/os/../../../os-device-registry/src/lib.rs:133:5
    |
131 | pub enum ResourceKind {
    |          ------------ variants in this enum
132 |     Mmio,
133 |     Irq,
    |     ^^^
134 |     Dma,
    |     ^^^
    |
    = note: `ResourceKind` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default

warning: method `device_count` is never used
   --> <project>/reports/os-implementation/K1415-device-driver-match-local-EN76YN/mutant/kernel/tests/os/../../../os-device-registry/src/lib.rs:188:18
    |
183 | impl<const D: usize, const R: usize> ResourceRegistry<D, R> {
    | ----------------------------------------------------------- method in this implementation
...
188 |     pub const fn device_count(&self) -> usize { self.devices.live_count() }
    |                  ^^^^^^^^^^^^

warning: field `class` is never read
   --> <project>/reports/os-implementation/K1415-device-driver-match-local-EN76YN/mutant/kernel/tests/os/../../../os-device-registry/src/lib.rs:284:5
    |
282 | struct MatchRule {
    |        --------- field in this struct
283 |     device_id: u32,
284 |     class: DeviceClass,
    |     ^^^^^

warning: 3 warnings emitted