Re: [PATCH v7 4/5] rust: add find_bit_benchmark_rust module.

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

Hi Burak,

kernel test robot noticed the following build errors:

[auto build test ERROR on rust/rust-next]
[also build test ERROR on akpm-mm/mm-nonmm-unstable linus/master v6.15-rc5]
[cannot apply to next-20250507]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Burak-Emir/rust-add-bindings-for-bitmap-h/20250423-214819
base:   https://github.com/Rust-for-Linux/linux rust-next
patch link:    https://lore.kernel.org/r/20250423134344.3888205-6-bqe%40google.com
patch subject: [PATCH v7 4/5] rust: add find_bit_benchmark_rust module.
config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20250507/202505072334.8gubqjKX-lkp@intel.com/config)
compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250507/202505072334.8gubqjKX-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/202505072334.8gubqjKX-lkp@intel.com/

All errors (new ones prefixed by >>):

>> error[E0463]: can't find crate for `core`
   |
   = note: the `riscv64imac-unknown-none-elf` target may not be installed
   = help: consider downloading the target with `rustup target add riscv64imac-unknown-none-elf`
   = help: consider building the standard library from source with `cargo build -Zbuild-std`

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