[nbdd0121:dev/selfref 29/49] warning: using `clone` on type `Variance` which implements the `Copy` trait

[nbdd0121:dev/selfref 29/49] warning: using `clone` on type `Variance` which implements the `Copy` trait

[kernel test robot]

tree:   https://github.com/nbdd0121/linux dev/selfref
head:   63b01fa5c495532c8f631cce076471a89c78001e
commit: d79b92740f4d9ff9d9f4fb214f0c055e108b6340 [29/49] rust: pin-init: internal: pin_data: infer self-referential struct
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20261002/202610020927.eNvWSFQ2-lkp@intel.com/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
rustc: rustc 1.96.0 (ac68faa20 2026-05-25)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261002/202610020927.eNvWSFQ2-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610020927.eNvWSFQ2-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: using `clone` on type `Variance` which implements the `Copy` trait
   --> rust/pin-init/internal/src/pin_data.rs:277:31
   |
   277 |                     variance: wildcard_variance.clone(),
   |                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `wildcard_variance`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.96.0/index.html#clone_on_copy
   = note: `-W clippy::clone-on-copy` implied by `-W clippy::all`
   = help: to override `-W clippy::all` add `#[allow(clippy::clone_on_copy)]`

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki