clippy::cast_lossless lint should be silenced

With Rust 1.80 and this code: ```rust #[usdt::provider(provider = "nexus_db_queries")] mod probes { // Fires before we start a search over a range for a VNI. // // Includes the starting VNI and the size of the range being searched. fn vni__search__range__start( _: &usdt::UniqueId, start_vni: u32, size: u32, ) { } // Fires when we successfully find a VNI. fn vni__search__range__found(_: &usdt::UniqueId, vni: u32) {} // Fires when we fail to find a VNI in the provided range. fn vni__search__range__empty(_: &usdt::UniqueId) {} } // ... crate::probes::vni__search__range__start!(|| { (&id, u32::from(vni), VniSearchIter::STEP_SIZE) }); ``` Running `cargo clippy` with the `clippy::cast_lossless` lint enabled produces this warning: ``` asting `u32` to `#[usdt::provider(provider = "nexus_db_queries")]` may become silently lossy if you later change the type --> nexus/db-queries/src/lib.rs:24:1 | 24 | #[usdt::provider(provider = "nexus_db_queries")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ::: nexus/db-queries/src/db/datastore/vpc.rs:360:13 | 360 | / crate::probes::vni__search__range__start!(|| { 361 | | (&id, u32::from(vni), VniSearchIter::STEP_SIZE) 362 | | }); | |______________- in this macro invocation | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless = note: `-D clippy::cast-lossless` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::cast_lossless)]` = note: this error originates in the macro `crate::probes::vni__search__range__start` (in Nightly builds, run with -Z macro-backtrace for more info) help: try | 24 + #[usdt::provider(provider = "nexus_db_queries")]::from(crate::probes::vni__search__range__start!(|| { 25 + (&id, u32::from(vni), VniSearchIter::STEP_SIZE) 26 + })) | error: casting `u32` to `#[usdt::provider(provider = "nexus_db_queries")]` may become silently lossy if you later change the type --> nexus/db-queries/src/lib.rs:24:1 | 24 | #[usdt::provider(provider = "nexus_db_queries")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ::: nexus/db-queries/src/db/datastore/vpc.rs:372:21 | 372 | / crate::probes::vni__search__range__found!(|| { 373 | | (&id, u32::from(vpc.vni.0)) 374 | | }); | |______________________- in this macro invocation | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless = note: this error originates in the macro `crate::probes::vni__search__range__found` (in Nightly builds, run with -Z macro-backtrace for more info) help: try | 24 + #[usdt::provider(provider = "nexus_db_queries")]::from(crate::probes::vni__search__range__found!(|| { 25 + (&id, u32::from(vpc.vni.0)) 26 + })) | ``` From a quick look at `cargo expand`, it looks like this code is produced: ```rust if is_enabled != 0 { let args = __usdt_private_args_lambda(); let arg_0 = args.0.as_u64() as i64; let arg_1 = (*<_ as ::std::borrow::Borrow< u32, >>::borrow(&args.1) as i64); let arg_2 = (*<_ as ::std::borrow::Borrow< u32, >>::borrow(&args.2) as i64); // ... } ``` I think this code is what's producing the warning. Since this is autogenerated code, we should silence this lint. I think annotating with `automatically_derived` might work? If not then explicitly silencing this lint should do the job.