Rust v1.91.1 bootstrap build fails (tier-check) on custom target (poky) build

When building Rust 1.91.1 inside the Yocto build system, the bootstrap process fails during the execution of the tier-check tool. The failure consistently occurs in the step where cargo run executes the src/tools/tier-check binary.

I believe "Building stage1 run_make_support (stage0 -> stage1, x86_64-unknown-linux-gnu)" and "Building stage2 cargo (stage1 -> stage2, x86_64-unknown-linux-gnu)" are the new build steps starting from v1.91.

Perhaps this PR might be related:
https://github.com/rust-lang/rust/pull/145663/commits

The issue was observed when testing with x86-64 target.
However, it passed for arm64 target.
How to fix this issue or am I overlooking something?

Command used

python3 src/bootstrap/bootstrap.py test  --exclude src/bootstrap  --exclude src/doc/rustc  --exclude src/doc/rustdoc  --exclude src/doc/unstable-book  --exclude src/etc/test-float-parse  --exclude src/librustdoc  --exclude src/rustdoc-json-types  --exclude src/tools/coverage-dump  
--exclude src/tools/jsondoclint  --exclude src/tools/lint-docs  --exclude src/tools/replace-version-placeholder  --exclude src/tools/rust-analyzer  --exclude src/tools/rustdoc-themes  --exclude src/tools/rust-installer  
--exclude src/tools/test-float-parse  --exclude src/tools/suggest-tests  --exclude src/tools/tidy  --exclude tests/assembly-llvm/asm/aarch64-outline-atomics.rs  
--exclude tests/codegen-llvm/issues/issue-122805.rs  --exclude tests/codegen-llvm/thread-local.rs  --exclude tests/mir-opt/  --exclude tests/run-make  --exclude tests/run-make-fulldeps  --exclude tests/rustdoc  --exclude tests/rustdoc-json  
--exclude tests/rustdoc-js-std  --exclude tests/ui/abi/stack-probes-lto.rs  --exclude tests/ui/abi/stack-probes.rs  --exclude tests/ui/codegen/mismatched-data-layouts.rs  --exclude tests/codegen-llvm/rust-abi-arch-specific-adjustment.rs  
--exclude tests/ui/feature-gates/version_check.rs  --exclude tests/ui-fulldeps/  
--exclude tests/ui/panics/panic-abort-backtrace-without-debuginfo.rs  
--exclude tests/ui/process/nofile-limit.rs  --exclude tidyselftest --no-doc --no-fail-fast --bless --target x86_64-oe-linux-gnu' returned non-zero exit status 1:

Result

1 command(s) did not execute successfully: 69225 69226   

- Command /home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/recipe-sysroot-native/usr/bin/cargo run --target x86_64-unknown-linux-gnu -Zbinary-dep-depinfo -j 192 
-Zroot-dir=/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/sources/rustc-1.91.1-src --frozen --release --manifest-path /home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/sources/rustc-1.91.1-src/src/tools/tier-check/Cargo.toml 
/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/sources/rustc-1.91.1-src/src/doc/rustc/src/platform-support.md /home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/sources/rustc-1.91.1-src/build/x86_64-oe-linux-gnu/stage2/bin/rustc 
[workdir=/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/sources/rustc-1.91.1-src] failed with exit code 101 

Created at: src/bootstrap/src/core/build_steps/tool.rs:191:21 
Executed at: src/bootstrap/src/core/build_steps/test.rs:3436:55

Bootstrap configuration (bootstrap.toml)

change-id = 116881

[target.x86-64-oe-linux-gnu]
llvm-config = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/recipe-sysroot/usr/bin/llvm-config"
cxx = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/wrapper/target-rust-cxx"
cc = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/wrapper/target-rust-cc"
linker = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/wrapper/target-rust-ccld"

[target.x86_64-unknown-linux-gnu]
llvm-config = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/recipe-sysroot-native/usr/bin/llvm-config"
cxx = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/wrapper/build-rust-cxx"
cc = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/wrapper/build-rust-cc"
linker = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/wrapper/build-rust-ccld"

[llvm]
static-libstdcpp = false
download-ci-llvm = false

[rust]
rpath = true
remap-debuginfo = true
download-rustc = false
llvm-tools = false
lld = false
use-lld = false
channel = "stable"
optimize = true
verbose-tests = true

[build]
submodules = false
docs = false
rustc = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/recipe-sysroot-native/usr/bin/rustc"
cargo = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/recipe-sysroot-native/usr/bin/cargo"
extended = false
vendor = true
target = ["x86-64-oe-linux-gnu"]
host = ["x86-64-oe-linux-gnu"]
build = "x86_64-unknown-linux-gnu"

[install]
prefix = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/image/usr"
bindir = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/image/usr/bin"
libdir = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/image/usr/lib"
datadir = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/image/usr/share"
mandir = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/image/usr/share/man"
sysconfdir = "/home/user/rust91/openembedded-core/build-st/tmp/work/x86-64-v3-oe-linux/rust/1.91.1/image/etc"

HEAD

Rust v1.91.1
ed61e7d7e242494fb7057f2657300d9e77bb4fcb

Reproduce the bootstrap test using the provided command and configuration, focusing on the cargo run invocation for src/tools/tier-check/Cargo.toml. Read src/bootstrap/src/core/build_steps/tool.rs around line 191 and src/bootstrap/src/core/build_steps/test.rs around line 3436, then compare the tier-check inputs in platform-support.md. Done means the tier-check step completes successfully for the custom target.