[asahilinux:bits/250-aop 17/57] warning: unresolved link to `mem::forget`

[asahilinux:bits/250-aop 17/57] warning: unresolved link to `mem::forget`

[kernel test robot]

tree:   https://github.com/AsahiLinux/linux bits/250-aop
head:   01c00561a643db1264ba75e8b464a87ec2db6126
commit: 59f3ec049634f1b22d7d6078e833fb5f21a71c84 [17/57] rust: alloc: vec: Import .drain() / Drain from rust library
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260301/202603011925.7VmLroaq-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260301/202603011925.7VmLroaq-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/202603011925.7VmLroaq-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: unresolved link to `mem::forget`
   --> rust/kernel/alloc/kvec.rs:768:11
   |
   768 |     /// [`mem::forget`], for example), the vector may have lost and leaked
   |           ^^^^^^^^^^^ no item named `mem` in scope
   |
   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default

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