Re: [PATCH 1/3] rust: char_dev: add character device abstraction

[kernel test robot <lkp@intel.com>]

Hi Josef,

kernel test robot noticed the following build errors:

[auto build test ERROR on ce1c54fdff7c4556b08f5b875a331d8952e8b6b7]

url:    https://github.com/intel-lab-lkp/linux/commits/Josef-Zoller/rust-char_dev-add-character-device-abstraction/20241012-030853
base:   ce1c54fdff7c4556b08f5b875a331d8952e8b6b7
patch link:    https://lore.kernel.org/r/20241011-rust-char-dev-v1-1-350225ae228b%40walterzollerpiano.com
patch subject: [PATCH 1/3] rust: char_dev: add character device abstraction
config: x86_64-randconfig-016-20241017 (https://download.01.org/0day-ci/archive/20241017/202410171902.1Oyg06At-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241017/202410171902.1Oyg06At-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/202410171902.1Oyg06At-lkp@intel.com/

All errors (new ones prefixed by >>):

>> error[E0658]: associated type bounds are unstable
   --> rust/kernel/char_dev.rs:140:42
   |
   140 |     type OpenPtr: for<'a> ForeignOwnable<Borrowed<'a>: Deref<Target: OpenCharDevice>>;
   |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #52662 <https://github.com/rust-lang/rust/issues/52662> for more information
   = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable
   = note: this compiler was built on 2024-04-29; consider upgrading it if it is out of date
--
>> error[E0658]: associated type bounds are unstable
   --> rust/kernel/char_dev.rs:140:62
   |
   140 |     type OpenPtr: for<'a> ForeignOwnable<Borrowed<'a>: Deref<Target: OpenCharDevice>>;
   |                                                              ^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #52662 <https://github.com/rust-lang/rust/issues/52662> for more information
   = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable
   = note: this compiler was built on 2024-04-29; consider upgrading it if it is out of date

-- 
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