[nbdd0121:dev/selfref 34/49] warning: useless conversion to the same type: `syn::Lifetime`

[nbdd0121:dev/selfref 34/49] warning: useless conversion to the same type: `syn::Lifetime`

[kernel test robot]

tree:   https://github.com/nbdd0121/linux dev/selfref
head:   63b01fa5c495532c8f631cce076471a89c78001e
commit: ff817a9e8581f84090560562ebd7efdc5aac8be9 [34/49] rust: pin-init: internal: pin_data: check covariance of self-referential fields
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20261002/202610021240.XVT5d8tK-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/20261002/202610021240.XVT5d8tK-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/202610021240.XVT5d8tK-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: useless conversion to the same type: `syn::Lifetime`
   --> rust/pin-init/internal/src/pin_data.rs:805:68
   |
   805 |                 .map(|b| GenericParam::Lifetime(LifetimeParam::new(b.lifetime.clone().into())))
   |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `b.lifetime.clone()`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.96.0/index.html#useless_conversion
   = note: `-W clippy::useless-conversion` implied by `-W clippy::all`
   = help: to override `-W clippy::all` add `#[allow(clippy::useless_conversion)]`

--
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