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Offload bootstrap #148671

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@ZuseZ4 ZuseZ4 commented Nov 7, 2025

The recommended way to build the offload project changed.
While already at it, testing how much overhead we get from building (or shipping) the two runtimes.

r? @Kobzol

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rustbot commented Nov 7, 2025

This PR changes how LLVM is built. Consider updating src/bootstrap/download-ci-llvm-stamp.

@rustbot rustbot added A-CI Area: Our Github Actions CI A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. labels Nov 7, 2025
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ZuseZ4 commented Nov 7, 2025

@bors2 try @rust-timer queue

(@Kobzol feel free to change if you want to see something else).

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rust-timer commented Nov 7, 2025

Awaiting bors try build completion.

@rustbot label: +S-waiting-on-perf

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rust-bors bot added a commit that referenced this pull request Nov 7, 2025
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Auto merge of #148671 - ZuseZ4:offload-bootstrap, r=<try>
7069335 
Offload bootstrap
@rustbot rustbot added the S-waiting-on-perf Status: Waiting on a perf run to be completed. label Nov 7, 2025
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rust-bors bot commented Nov 7, 2025

💔 Test for 7069335 failed: CI. Failed jobs:

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ZuseZ4 commented Nov 7, 2025

@bors2 try @rust-timer queue

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rust-timer commented Nov 7, 2025

Awaiting bors try build completion.

@rustbot label: +S-waiting-on-perf

rust-bors bot added a commit that referenced this pull request Nov 7, 2025
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Auto merge of #148671 - ZuseZ4:offload-bootstrap, r=<try>
31000c9 
Offload bootstrap
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rust-bors bot commented Nov 7, 2025

💔 Test for 31000c9 failed: CI. Failed jobs:

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ZuseZ4 commented Nov 8, 2025

@bors2 try @rust-timer queue

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rust-timer commented Nov 8, 2025

Awaiting bors try build completion.

@rustbot label: +S-waiting-on-perf

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rust-bors bot added a commit that referenced this pull request Nov 8, 2025
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Auto merge of #148671 - ZuseZ4:offload-bootstrap, r=<try>
de7bdfa 
Offload bootstrap
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rust-log-analyzer commented Nov 8, 2025

The job dist-x86_64-linux failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot) 
sccache: Listening on address 127.0.0.1:4226
##[group]Configure the build
configure: processing command line
configure: 
configure: build.configure-args := ['--enable-full-tools', '--enable-sanitizers', '--enable-profiler', '--enable-compiler-docs', '--set', 'target.x86_64-unknown-linux-gnu.linker=clang', '--set', 'target.x86_64-unknown-linux-gnu.ar=/rustroot/bin/llvm-ar', '--set', 'target.x86_64-unknown-linux-gnu.ranlib=/rustroot/bin/llvm-ranlib', '--set', 'llvm.thin-lto=true', '--set', 'llvm.ninja=false', '--set', 'llvm.offload=true', '--set', 'llvm.clang=true', '--set', 'llvm.libzstd=true', '--set', 'rust.jemalloc', '--set', 'rust.bootstrap-override-lld=true', '--set', 'rust.lto=thin', '--set', 'rust.codegen-units=1', '--set', 'build.print-step-timings', '--enable-verbose-tests', '--set', 'build.metrics', '--enable-verbose-configure', '--enable-sccache', '--disable-manage-submodules', '--enable-locked-deps', '--enable-cargo-native-static', '--set', 'rust.codegen-units-std=1', '--set', 'dist.compression-profile=balanced', '--dist-compression-formats=xz', '--set', 'rust.lld=true', '--set', 'build.optimized-compiler-builtins', '--release-channel=nightly', '--enable-llvm-static-stdcpp', '--set', 'rust.remap-debuginfo', '--debuginfo-level-std=1', '--set', 'rust.codegen-backends=llvm,cranelift']
configure: rust.codegen-backends := ['llvm']
configure: rust.lld             := True
configure: rust.llvm-tools      := True
configure: rust.llvm-bitcode-linker := True
configure: build.extended       := True
---

# Arguments passed to the `./configure` script, used during distcheck. You
# probably won't fill this in but rather it's filled in by the `./configure`
# script. Useful for debugging.
configure-args = ['--enable-full-tools', '--enable-sanitizers', '--enable-profiler', '--enable-compiler-docs', '--set', 'target.x86_64-unknown-linux-gnu.linker=clang', '--set', 'target.x86_64-unknown-linux-gnu.ar=/rustroot/bin/llvm-ar', '--set', 'target.x86_64-unknown-linux-gnu.ranlib=/rustroot/bin/llvm-ranlib', '--set', 'llvm.thin-lto=true', '--set', 'llvm.ninja=false', '--set', 'llvm.offload=true', '--set', 'llvm.clang=true', '--set', 'llvm.libzstd=true', '--set', 'rust.jemalloc', '--set', 'rust.bootstrap-override-lld=true', '--set', 'rust.lto=thin', '--set', 'rust.codegen-units=1', '--set', 'build.print-step-timings', '--enable-verbose-tests', '--set', 'build.metrics', '--enable-verbose-configure', '--enable-sccache', '--disable-manage-submodules', '--enable-locked-deps', '--enable-cargo-native-static', '--set', 'rust.codegen-units-std=1', '--set', 'dist.compression-profile=balanced', '--dist-compression-formats=xz', '--set', 'rust.lld=true', '--set', 'build.optimized-compiler-builtins', '--release-channel=nightly', '--enable-llvm-static-stdcpp', '--set', 'rust.remap-debuginfo', '--debuginfo-level-std=1', '--set', 'rust.codegen-backends=llvm,cranelift']

# Print out how long each bootstrap step took (mostly intended for CI and
# tracking over time)
print-step-timings = true

---
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.13s
##[endgroup]
[2025-11-08T03:54:06.497Z INFO  opt_dist::timer] Section `Stage 1 (Rustc PGO)` starts
[2025-11-08T03:54:06.497Z INFO  opt_dist::timer] Section `Stage 1 (Rustc PGO) > Build PGO instrumented rustc and LLVM` starts
[2025-11-08T03:54:06.497Z INFO  opt_dist::exec] Executing `RUST_BACKTRACE=full python3 /checkout/x.py build --target x86_64-unknown-linux-gnu --host x86_64-unknown-linux-gnu --stage 2 library/std --set rust.llvm-bitcode-linker=false --set build.extended=false --set rust.codegen-backends=['llvm'] --set rust.deny-warnings=false --rust-profile-generate /tmp/tmp-multistage/opt-artifacts/rustc-pgo --set llvm.thin-lto=false --set llvm.link-shared=true [at /checkout/obj]`
##[group]Building bootstrap
    Finished `dev` profile [unoptimized] target(s) in 0.06s
##[endgroup]
[TIMING:start] compile::Assemble { target_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false } }
[TIMING:start] builder::Libdir { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: x86_64-unknown-linux-gnu }
---
CMAKE_x86_64-unknown-linux-gnu = None
CMAKE_x86_64_unknown_linux_gnu = None
HOST_CMAKE = None
CMAKE = None
running: cd "/checkout/obj/build/x86_64-unknown-linux-gnu/llvm/build" && CMAKE_PREFIX_PATH="" DESTDIR="" LC_ALL="C" "cmake" "/checkout/src/llvm-project/llvm" "-DLLVM_ENABLE_ASSERTIONS=OFF" "-DLLVM_UNREACHABLE_OPTIMIZE=OFF" "-DLLVM_ENABLE_PLUGINS=OFF" "-DLLVM_TARGETS_TO_BUILD=AArch64;AMDGPU;ARM;BPF;Hexagon;LoongArch;MSP430;Mips;NVPTX;PowerPC;RISCV;Sparc;SystemZ;WebAssembly;X86" "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=AVR;M68k;CSKY;Xtensa" "-DLLVM_INCLUDE_EXAMPLES=OFF" "-DLLVM_INCLUDE_DOCS=OFF" "-DLLVM_INCLUDE_BENCHMARKS=OFF" "-DLLVM_INCLUDE_TESTS=OFF" "-DLLVM_ENABLE_LIBEDIT=OFF" "-DLLVM_ENABLE_BINDINGS=OFF" "-DLLVM_ENABLE_Z3_SOLVER=OFF" "-DLLVM_PARALLEL_COMPILE_JOBS=36" "-DLLVM_TARGET_ARCH=x86_64" "-DLLVM_DEFAULT_TARGET_TRIPLE=x86_64-unknown-linux-gnu" "-DLLVM_ENABLE_WARNINGS=OFF" "-DLLVM_INSTALL_UTILS=ON" "-DLLVM_ENABLE_ZLIB=ON" "-DLLVM_LINK_LLVM_DYLIB=ON" "-DLLVM_ENABLE_LIBXML2=OFF" "-DRUNTIMES_CMAKE_ARGS=-DLIBOMPTARGET_PLUGINS_TO_BUILD=amdgpu;nvptx" "-DLLVM_ENABLE_PROJECTS=clang" "-DLLVM_ENABLE_RUNTIMES=compiler-rt;offload;openmp" "-DLLVM_VERSION_SUFFIX=-rust-1.93.0-nightly" "-DCMAKE_INSTALL_MESSAGE=LAZY" "-DCMAKE_C_COMPILER_LAUNCHER=sccache" "-DCMAKE_CXX_COMPILER_LAUNCHER=sccache" "-DCMAKE_C_COMPILER=clang" "-DCMAKE_CXX_COMPILER=clang++" "-DCMAKE_ASM_COMPILER=clang" "-DCMAKE_C_FLAGS=-ffunction-sections -fdata-sections -fPIC -m64 --target=x86_64-unknown-linux-gnu -fdebug-prefix-map=/checkout=/rustc/llvm" "-DCMAKE_CXX_FLAGS=-ffunction-sections -fdata-sections -fPIC -m64 --target=x86_64-unknown-linux-gnu -fdebug-prefix-map=/checkout=/rustc/llvm" "-DCMAKE_AR=/rustroot/bin/llvm-ar" "-DCMAKE_RANLIB=/rustroot/bin/llvm-ranlib" "-DCMAKE_SHARED_LINKER_FLAGS= -Wl,-Bsymbolic -static-libstdc++" "-DCMAKE_MODULE_LINKER_FLAGS= -Wl,-Bsymbolic -static-libstdc++" "-DCMAKE_EXE_LINKER_FLAGS= -Wl,-Bsymbolic -static-libstdc++" "-DLLVM_ENABLE_ZSTD=FORCE_ON" "-DLLVM_USE_STATIC_ZSTD=TRUE" "-DCMAKE_INSTALL_PREFIX=/checkout/obj/build/x86_64-unknown-linux-gnu/llvm" "-DCMAKE_ASM_FLAGS= -ffunction-sections -fdata-sections -fPIC -m64 --target=x86_64-unknown-linux-gnu" "-DCMAKE_BUILD_TYPE=Release"
-- The C compiler identification is Clang 21.1.0
-- The CXX compiler identification is Clang 21.1.0
-- The ASM compiler identification is Clang
-- Found assembler: /rustroot/bin/clang
-- Detecting C compiler ABI info
---
[  1%] Built target hexagon-resource-headers
[  1%] Generating ../../../../libexec/c++-analyzer
[  1%] Built target llvm-offload-resource-headers
[  1%] Built target mips-resource-headers
[  1%] Built target spirv-resource-headers
[  1%] Built target utility-resource-headers
[  1%] Built target ppc-htm-resource-headers
[  1%] Generating ../../../../bin/intercept-build
[  1%] Generating ../../../../bin/scan-view
[  1%] Generating ../../../../libexec/ccc-analyzer
[  1%] Generating ../../../../share/man/man1/scan-build.1
[  1%] Generating ../../../../share/scan-view/Reporter.py
---
-- Builtin supported architectures: i386;x86_64
-- Performing additional configure checks with target flags: -nostdinc++ -fPIC -fno-builtin -fvisibility=hidden -fomit-frame-pointer -m32
-- Performing Test COMPILER_RT_HAS_i386_FLOAT16
[ 98%] Built target clang-refactor
-- Performing Test COMPILER_RT_HAS_i386_FLOAT16 - Success
-- Performing Test COMPILER_RT_HAS_i386_BFLOAT16
-- Performing Test COMPILER_RT_HAS_i386_BFLOAT16 - Success
-- For i386 builtins preferring i386/fp_mode.c to fp_mode.c
-- For i386 builtins preferring i386/ashldi3.S to ashldi3.c
-- For i386 builtins preferring i386/ashrdi3.S to ashrdi3.c
-- For i386 builtins preferring i386/divdi3.S to divdi3.c
-- For i386 builtins preferring i386/floatdidf.S to floatdidf.c
-- For i386 builtins preferring i386/floatdisf.S to floatdisf.c
-- For i386 builtins preferring i386/floatundidf.S to floatundidf.c
-- For i386 builtins preferring i386/floatundisf.S to floatundisf.c
-- For i386 builtins preferring i386/lshrdi3.S to lshrdi3.c
-- For i386 builtins preferring i386/moddi3.S to moddi3.c
-- For i386 builtins preferring i386/muldi3.S to muldi3.c
-- For i386 builtins preferring i386/udivdi3.S to udivdi3.c
-- For i386 builtins preferring i386/umoddi3.S to umoddi3.c
-- For i386 builtins preferring i386/floatdixf.S to floatdixf.c
-- For i386 builtins preferring i386/floatundixf.S to floatundixf.c
-- Performing additional configure checks with target flags: -nostdinc++ -fPIC -fno-builtin -fvisibility=hidden -fomit-frame-pointer -m64
-- Performing Test COMPILER_RT_HAS_x86_64_FLOAT16
-- Performing Test COMPILER_RT_HAS_x86_64_FLOAT16 - Success
-- Performing Test COMPILER_RT_HAS_x86_64_BFLOAT16
-- Performing Test COMPILER_RT_HAS_x86_64_BFLOAT16 - Success
---
[ 66%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/trampoline_setup.c.o
[ 66%] Building C object CMakeFiles/clang_rt.builtins-i386.dir/clear_cache.c.o
[ 67%] Building C object CMakeFiles/clang_rt.builtins-i386.dir/gcc_personality_v0.c.o
[ 67%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/truncdfhf2.c.o
[ 67%] Building C object CMakeFiles/clang_rt.builtins-i386.dir/cpu_model/x86.c.o
[ 68%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/ashldi3.S.o
[ 68%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/truncdfsf2.c.o
[ 68%] Building C object CMakeFiles/clang_rt.builtins-i386.dir/i386/fp_mode.c.o
[ 68%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/ashrdi3.S.o
[ 69%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/truncsfhf2.c.o
[ 69%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/ucmpti2.c.o
[ 69%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/ucmpdi2.c.o
[ 69%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/divdi3.S.o
[ 70%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/udivmoddi4.c.o
[ 71%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/udivdi3.c.o
[ 71%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/floatdidf.S.o
[ 71%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/udivmodsi4.c.o
[ 71%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/floatdisf.S.o
[ 72%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/udivmodti4.c.o
[ 72%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/floatundidf.S.o
[ 72%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/udivsi3.c.o
[ 73%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/floatundisf.S.o
[ 73%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/lshrdi3.S.o
[ 73%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/moddi3.S.o
[ 73%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/udivti3.c.o
[ 74%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/udivdi3.S.o
[ 74%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/muldi3.S.o
[ 74%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/umodsi3.c.o
[ 74%] Building ASM object CMakeFiles/clang_rt.builtins-i386.dir/i386/umoddi3.S.o
[ 75%] Building C object CMakeFiles/clang_rt.builtins-x86_64.dir/umoddi3.c.o
[ 75%] Building C object CMakeFiles/clang_rt.builtins-i386.dir/divxc3.c.o
[ 75%] Building C object CMakeFiles/clang_rt.builtins-i386.dir/extendxftf2.c.o
---
-- Performing Test COMPILER_RT_HAS_VERSION_SCRIPT - Failed
-- Looking for __i386__
-- Looking for __i386__ - not found
-- Compiler-RT supported architectures: 
-- Performing Test OPENMP_HAVE_ONEAPI_COMPILER
-- Performing Test OPENMP_HAVE_ONEAPI_COMPILER - Failed
-- Performing Test OPENMP_HAVE_WALL_FLAG
-- Performing Test OPENMP_HAVE_WALL_FLAG - Failed
-- Performing Test OPENMP_HAVE_WERROR_FLAG
-- Performing Test OPENMP_HAVE_WERROR_FLAG - Failed
-- Performing Test OPENMP_HAVE_COLOR_DIAGNOSTICS
-- Performing Test OPENMP_HAVE_COLOR_DIAGNOSTICS - Failed
-- Performing Test OPENMP_HAVE_WCAST_QUAL_FLAG
-- Performing Test OPENMP_HAVE_WCAST_QUAL_FLAG - Failed
-- Performing Test OPENMP_HAVE_WFORMAT_PEDANTIC_FLAG
-- Performing Test OPENMP_HAVE_WFORMAT_PEDANTIC_FLAG - Failed
-- Performing Test OPENMP_HAVE_WIMPLICIT_FALLTHROUGH_FLAG
-- Performing Test OPENMP_HAVE_WIMPLICIT_FALLTHROUGH_FLAG - Failed
-- Performing Test OPENMP_HAVE_WSIGN_COMPARE_FLAG
-- Performing Test OPENMP_HAVE_WSIGN_COMPARE_FLAG - Failed
-- Performing Test OPENMP_HAVE_WEXTRA_FLAG
-- Performing Test OPENMP_HAVE_WEXTRA_FLAG - Failed
-- Performing Test OPENMP_HAVE_WPEDANTIC_FLAG
-- Performing Test OPENMP_HAVE_WPEDANTIC_FLAG - Failed
-- Performing Test OPENMP_HAVE_WMAYBE_UNINITIALIZED_FLAG
-- Performing Test OPENMP_HAVE_WMAYBE_UNINITIALIZED_FLAG - Failed
-- Performing Test OPENMP_HAVE_NO_SEMANTIC_INTERPOSITION
-- Performing Test OPENMP_HAVE_NO_SEMANTIC_INTERPOSITION - Failed
-- Performing Test OPENMP_HAVE_FUNCTION_SECTIONS
-- Performing Test OPENMP_HAVE_FUNCTION_SECTIONS - Failed
-- Performing Test OPENMP_HAVE_DATA_SECTIONS
-- Performing Test OPENMP_HAVE_DATA_SECTIONS - Failed
-- Performing Test LIBOMP_HAVE_FNO_EXCEPTIONS_FLAG
-- Performing Test LIBOMP_HAVE_FNO_EXCEPTIONS_FLAG - Failed
-- Performing Test LIBOMP_HAVE_FNO_RTTI_FLAG
-- Performing Test LIBOMP_HAVE_FNO_RTTI_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WCLASS_MEMACCESS_FLAG
-- Performing Test LIBOMP_HAVE_WCLASS_MEMACCESS_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WCOVERED_SWITCH_DEFAULT_FLAG
-- Performing Test LIBOMP_HAVE_WCOVERED_SWITCH_DEFAULT_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WFRAME_ADDRESS_FLAG
-- Performing Test LIBOMP_HAVE_WFRAME_ADDRESS_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WSTRICT_ALIASING_FLAG
-- Performing Test LIBOMP_HAVE_WSTRICT_ALIASING_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WSTRINGOP_OVERFLOW_FLAG
-- Performing Test LIBOMP_HAVE_WSTRINGOP_OVERFLOW_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WSTRINGOP_TRUNCATION_FLAG
-- Performing Test LIBOMP_HAVE_WSTRINGOP_TRUNCATION_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WSWITCH_FLAG
-- Performing Test LIBOMP_HAVE_WSWITCH_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WUNINITIALIZED_FLAG
-- Performing Test LIBOMP_HAVE_WUNINITIALIZED_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WRETURN_TYPE_C_LINKAGE_FLAG
-- Performing Test LIBOMP_HAVE_WRETURN_TYPE_C_LINKAGE_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WCAST_QUAL_FLAG
-- Performing Test LIBOMP_HAVE_WCAST_QUAL_FLAG - Failed
-- Performing Test LIBOMP_HAVE_WINT_TO_VOID_POINTER_CAST_FLAG
-- Performing Test LIBOMP_HAVE_WINT_TO_VOID_POINTER_CAST_FLAG - Failed
-- Performing Test LIBOMP_HAVE_MSSE2_FLAG
-- Performing Test LIBOMP_HAVE_MSSE2_FLAG - Failed
-- Performing Test LIBOMP_HAVE_FTLS_MODEL_FLAG
-- Performing Test LIBOMP_HAVE_FTLS_MODEL_FLAG - Failed
-- Performing Test LIBOMP_HAVE_MMIC_FLAG
-- Performing Test LIBOMP_HAVE_MMIC_FLAG - Failed
-- Performing Test LIBOMP_HAVE_M32_FLAG
-- Performing Test LIBOMP_HAVE_M32_FLAG - Failed
-- Looking for pthread_setname_np
-- Looking for pthread_setname_np - not found
-- Looking for pthread_set_name_np
-- Looking for pthread_set_name_np - not found
-- Looking for shm_open
-- Looking for shm_open - not found
-- Looking for shm_open
-- Looking for shm_open - not found
-- Looking for xmmintrin.h
-- Looking for xmmintrin.h - not found
-- Performing Test LIBOMP_HAVE__MM_MALLOC
-- Performing Test LIBOMP_HAVE__MM_MALLOC - Failed
-- Looking for aligned_alloc
-- Looking for aligned_alloc - not found
-- Looking for posix_memalign
-- Looking for posix_memalign - not found
-- Looking for _aligned_malloc
-- Looking for _aligned_malloc - not found
-- Performing Test LIBOMP_HAVE_X_FLAG
-- Performing Test LIBOMP_HAVE_X_FLAG - Failed
-- Performing Test LIBOMP_HAVE_AS_NEEDED_FLAG
-- Performing Test LIBOMP_HAVE_AS_NEEDED_FLAG - Failed
-- Performing Test LIBOMP_HAVE_VERSION_SCRIPT_FLAG
-- Performing Test LIBOMP_HAVE_VERSION_SCRIPT_FLAG - Failed
-- Performing Test LIBOMP_HAVE_STATIC_LIBGCC_FLAG
-- Performing Test LIBOMP_HAVE_STATIC_LIBGCC_FLAG - Failed
-- Performing Test LIBOMP_HAVE_Z_NOEXECSTACK_FLAG
-- Performing Test LIBOMP_HAVE_Z_NOEXECSTACK_FLAG - Failed
-- Looking for pthread.h
-- Looking for pthread.h - not found
CMake Error at /usr/local/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
  Could NOT find Threads (missing: Threads_FOUND)
Call Stack (most recent call first):
  /usr/local/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
  /usr/local/share/cmake-3.20/Modules/FindThreads.cmake:238 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  /checkout/src/llvm-project/openmp/runtime/cmake/config-ix.cmake:162 (find_package)
  /checkout/src/llvm-project/openmp/runtime/CMakeLists.txt:289 (include)


-- Configuring incomplete, errors occurred!
See also "/checkout/obj/build/x86_64-unknown-linux-gnu/llvm/build/runtimes/runtimes-bins/CMakeFiles/CMakeOutput.log".
---
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:834:13
  12:     0x56323707ca2a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13
  13:     0x563237076a89 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18
  14:     0x56323705afdd - __rustc[256c90bb7e548b45]::rust_begin_unwind
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5
  15:     0x56323629b210 - core::panicking::panic_fmt::hf19c198748ef6a95
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14
  16:     0x563236b7c49b - cmake::fail::h5ffd31797e7666dd
  17:     0x563236b7c122 - cmake::run::h9db521ef9ab4f16f
---
  32:     0x56323629c746 - std::sys::backtrace::__rust_begin_short_backtrace::h27046ffc55333d92
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:158:18
  33:     0x56323629c729 - std::rt::lang_start::{{closure}}::h987ce18149d64279
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:206:18
  34:     0x56323706a010 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hdf957eac011d0136
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:287:21
  35:     0x56323706a010 - std::panicking::catch_unwind::do_call::h9ff550f7799115e1
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
  36:     0x56323706a010 - std::panicking::catch_unwind::ha7ce46787bb12905
                               at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
---
[2025-11-08T04:01:27.845Z INFO  opt_dist::utils] Free disk space: 1.23 TiB out of total 2.18 TiB (43.38% used)
Error: Optimized build pipeline has failed

Caused by:
    Command RUST_BACKTRACE=full python3 /checkout/x.py build --target x86_64-unknown-linux-gnu --host x86_64-unknown-linux-gnu --stage 2 library/std --set rust.llvm-bitcode-linker=false --set build.extended=false --set rust.codegen-backends=['llvm'] --set rust.deny-warnings=false --rust-profile-generate /tmp/tmp-multistage/opt-artifacts/rustc-pgo --set llvm.thin-lto=false --set llvm.link-shared=true [at /checkout/obj] has failed with exit code Some(1)

Stack backtrace:
   0: <anyhow::Error>::msg::<alloc::string::String>
             at /rust/deps/anyhow-1.0.99/src/backtrace.rs:27:14
   1: <opt_dist::exec::CmdBuilder>::run
             at /rustc/de7bdfa7c2d2ee8685137ac46c4bb6da1afc3cba/src/tools/opt-dist/src/exec.rs:80:17
   2: <opt_dist::exec::Bootstrap>::run
             at /rustc/de7bdfa7c2d2ee8685137ac46c4bb6da1afc3cba/src/tools/opt-dist/src/exec.rs:199:18
   3: opt_dist::execute_pipeline::{closure#1}::{closure#0}
             at /rustc/de7bdfa7c2d2ee8685137ac46c4bb6da1afc3cba/src/tools/opt-dist/src/main.rs:256:21
   4: <opt_dist::timer::TimerSection>::section::<opt_dist::execute_pipeline::{closure#1}::{closure#0}, ()>
             at /rustc/de7bdfa7c2d2ee8685137ac46c4bb6da1afc3cba/src/tools/opt-dist/src/timer.rs:111:22
   5: opt_dist::execute_pipeline::{closure#1}
             at /rustc/de7bdfa7c2d2ee8685137ac46c4bb6da1afc3cba/src/tools/opt-dist/src/main.rs:245:15
   6: <opt_dist::timer::TimerSection>::section::<opt_dist::execute_pipeline::{closure#1}, opt_dist::training::RustcPGOProfile>
             at /rustc/de7bdfa7c2d2ee8685137ac46c4bb6da1afc3cba/src/tools/opt-dist/src/timer.rs:111:22
   7: opt_dist::execute_pipeline
             at /rustc/de7bdfa7c2d2ee8685137ac46c4bb6da1afc3cba/src/tools/opt-dist/src/main.rs:242:35
   8: opt_dist::main
             at /rustc/de7bdfa7c2d2ee8685137ac46c4bb6da1afc3cba/src/tools/opt-dist/src/main.rs:467:18
   9: <fn() -> core::result::Result<(), anyhow::Error> as core::ops::function::FnOnce<()>>::call_once
             at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
  10: std::sys::backtrace::__rust_begin_short_backtrace::<fn() -> core::result::Result<(), anyhow::Error>, core::result::Result<(), anyhow::Error>>
             at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:158:18
  11: std::rt::lang_start::<core::result::Result<(), anyhow::Error>>::{closure#0}
             at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:206:18
  12: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
             at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:287:21
  13: std::panicking::catch_unwind::do_call
             at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
  14: std::panicking::catch_unwind
             at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19

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💔 Test for de7bdfa failed: CI. Failed jobs:

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