ERROR Flycheck failed to run the following command

rust-analyzer version: 0.3.2955
rustc version: 1.96.1
editor or extension: Visual Studio Code
relevant settings: none
OS: Windows 11 Home 25H2(26200.8655)
Others: Windows 11 SDK(10.0.28000.1839)

Summary:
I have a rust bin project. In Cargo.toml file, if I add a mimalloc(mimalloc = "0.1") dependencies to this project, it will report a error in VSCode:

2026-07-01T08:15:32.0928241+08:00 ERROR FetchBuildDataError: error: failed to run custom build command for libmimalloc-sys v0.1.49 note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.

Caused by: process didn't exit successfully: C:\prjs_rust_git_src\rust_learning\mytest02\target\debug\build\libmimalloc-sys-bb484ed7d47cad91\build-script-build (exit code: 1) --- stderr

error occurred in cc-rs: command did not execute successfully (status code exit code: 2): "C:\Program Files (x86)\Microsoft Visual Studio\18\BuildTools\VC\Tools\MSVC\14.51.36231\bin\HostX64\x64\cl.exe" "-nologo" "-MD" "-Z7" "-Brepro" "-std:c++17" "-I" "c_src/mimalloc/v3/include" "-I" "c_src/mimalloc/v3/src" "-W4" "/Zc:__cplusplus" "-DMI_DEBUG=0" "-FoC:\prjs_rust_git_src\rust_learning\mytest02\target\debug\build\libmimalloc-sys-e1725bc60f4f3fe1\out\ea87f1564a68d277-mimalloc-static.o" "-c" "C:\prjs_rust_git_src\rust_learning\mytest02\target\debug\build\libmimalloc-sys-e1725bc60f4f3fe1\out\mimalloc-static.cc"

2026-07-01T08:16:08.3452738+08:00 ERROR Flycheck failed to run the following command: CommandHandle { program: "C:\Users\ddaixi.cargo\bin\cargo.exe", arguments: ["check", "--workspace", "--message-format=json-diagnostic-rendered-ansi", "--manifest-path", "C:\prjs_rust_git_src\rust_learning\mytest02\Cargo.toml", "--keep-going", "--all-targets"], current_dir: Some("C:\prjs_rust_git_src\rust_learning\mytest02") }, error=Cargo watcher failed, the command produced no valid metadata (exit code: ExitStatus(ExitStatus(101))): Blocking waiting for file lock on package cache Blocking waiting for file lock on package cache 1.822438700s INFO prepare_target{force=false package_id=mytest02 v0.1.0 (C:\prjs_rust_git_src\rust_learning\mytest02) target="mytest02"}: cargo::core::compiler::fingerprint: fingerprint error for mytest02 v0.1.0 (C:\prjs_rust_git_src\rust_learning\mytest02)/Check { test: true }/TargetInner { name_inferred: true, ..: lib_target("mytest02", ["lib"], "C:\prjs_rust_git_src\rust_learning\mytest02\src\lib.rs", Edition2024) } 1.824259400s INFO prepare_target{force=false package_id=mytest02 v0.1.0 (C:\prjs_rust_git_src\rust_learning\mytest02) target="mytest02"}: cargo::core::compiler::fingerprint: err: failed to read C:\prjs_rust_git_src\rust_learning\mytest02\target\debug.fingerprint\mytest02-707d0ba1f50f9ee3\test-lib-mytest02

Cargo.toml:
[dev-dependencies]
mimalloc = "0.1"

It looks like FlyCheck can not run normally. I re-install VSCode, rust-analyzer, and all plugins in VSCode, and clean cc, mimalloc libmimalloc-sys sources file and cache in .cargo/registry/cache & .cargo/registry/src, and call cargo clean and delete Cargo.lock, but none of them solves the problem.
If i use cargo check or cargo run command in PowerShell, it can run normally.

No repository file or test is named. Start by reproducing the Cargo.toml [dev-dependencies] mimalloc case with the logged cargo check command, then compare its rust-analyzer Cargo watcher behavior with cargo check in PowerShell. Done means the Windows-specific failure is isolated to an actionable rust-analyzer component or ruled out as an external build issue.