Compiler crashes on modules that import both a precompiled library and `Lake.CLI`

[zqy1018]

Prerequisites

• Check that your issue is not already filed:
  https://github.com/leanprover/lean4/issues
• Reduce the issue to a minimal, self-contained, reproducible test case.
  Avoid dependencies to Mathlib or Batteries.
• Test your test case against the latest nightly release, for example on
  https://live.lean-lang.org/#project=lean-nightly
  (You can also use the settings there to switch to “Lean nightly”)

Description

When Lean compiles a file that imports both Lake.CLI and a module from a package that uses precompiled modules, it crashes with SIGSEGV.

Steps to Reproduce

1. Download Archive.zip. It's the archive of a minimal Lean project to reproduce this issue.
2. Unzip it, go into the directory and run lake build Mini.

Expected behavior: Build succeeded.

Actual behavior: Build failed with error: Lean exited with code 139.

Versions

• Lean version: lean4-nightly:nightly-2025-12-28
• OS version: MacOS 26.1 (arm64)

Additional Information

This seems related to #7388 (fixed by #8383), but that issue was closed, so I'm opening a new issue.

For the MWE above, the issue disappears if either precompileModules is disabled, or if import Lake.CLI is moved from Mini.lean into Mini/Basic.lean.

I cannot reproduce this issue on a Linux machine.

Impact

Add 👍 to issues you consider important. If others are impacted by this issue, please ask them to add 👍 to it.