Description of problem:

I'm seeing some new build failures with rust 1.90

https://koschei.fedoraproject.org/affected-by/rust?epoch1=0&version1=1.89.0&release1=4.fc44&epoch2=0&version2=1.90.0&release2=1.fc44&collection=f44

clamav is failing on ppc64le with a segfault:

     Running `/usr/bin/rustc --crate-name hex_literal --edition=2021 /usr/share/cargo/registry/hex-literal-0.4.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=382c77fbf210656e -C extra-filename=-12b6323779711aec --out-dir /builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps --target powerpc64le-unknown-linux-gnu -C strip=debuginfo -L dependency=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps -L dependency=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/release/deps --cap-lints allow -Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn -g -Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn`
error: rustc interrupted by SIGSEGV, printing backtrace
/lib64/librustc_driver-a462836d23d350af.so(+0x106da0c) [0x7fff87c6da0c]
linux-vdso64.so.1(__kernel_sigtramp_rt64+0x0) [0x7fff8c1a0484]
/lib64/libLLVM.so.21.1(+0x5f9c2fc) [0x7fff8399c2fc]
/lib64/libLLVM.so.21.1(+0x5d68af8) [0x7fff83768af8]
/lib64/libLLVM.so.21.1(_ZN4llvm12SelectionDAG7CombineENS_12CombineLevelEPNS_14BatchAAResultsENS_15CodeGenOptLevelE+0x170c) [0x7fff837649ec]
/lib64/libLLVM.so.21.1(_ZN4llvm16SelectionDAGISel17CodeGenAndEmitDAGEv+0x268) [0x7fff8375c068]
/lib64/libLLVM.so.21.1(_ZN4llvm16SelectionDAGISel20SelectAllBasicBlocksERKNS_8FunctionE+0xd8c) [0x7fff8327e30c]
/lib64/libLLVM.so.21.1(_ZN4llvm16SelectionDAGISel20runOnMachineFunctionERNS_15MachineFunctionE+0x174) [0x7fff8384fdd4]
/lib64/libLLVM.so.21.1(+0x5e4fc00) [0x7fff8384fc00]
/lib64/libLLVM.so.21.1(_ZN4llvm22SelectionDAGISelLegacy20runOnMachineFunctionERNS_15MachineFunctionE+0x11c) [0x7fff83b1993c]
/lib64/libLLVM.so.21.1(_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0x1c8) [0x7fff8383c128]
/lib64/libLLVM.so.21.1(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x8a4) [0x7fff8339e004]
/lib64/libLLVM.so.21.1(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x4c) [0x7fff8339d56c]
/lib64/libLLVM.so.21.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x354) [0x7fff833a1c14]
/lib64/libLLVM.so.21.1(_ZN4llvm6legacy11PassManager3runERNS_6ModuleE+0x1c) [0x7fff833a189c]
/lib64/librustc_driver-a462836d23d350af.so(+0x46e872c) [0x7fff8b2e872c]
/lib64/librustc_driver-a462836d23d350af.so(+0x3f7a4a8) [0x7fff8ab7a4a8]
/lib64/librustc_driver-a462836d23d350af.so(+0x3f7c7bc) [0x7fff8ab7c7bc]
/lib64/librustc_driver-a462836d23d350af.so(_RINvNtNtCs56uYmNLu2ng_3std3sys9backtrace28___rust_begin_short_backtraceNCINvXs0_Cs3uAENGAl7ek_18rustc_codegen_llvmNtB1g_18LlvmCodegenBackendNtNtNtCs53nzcKbF4x_17rustc_codegen_ssa6traits7backend19ExtraBackendMethods18spawn_named_threadNCINvNtNtB2k_4back5write10spawn_workB1O_E0uE0uEB1g_+0x200) [0x7fff8ab5ace0]
/lib64/librustc_driver-a462836d23d350af.so(+0x3f67f98) [0x7fff8ab67f98]
/lib64/librustc_driver-a462836d23d350af.so(+0x46c06f0) [0x7fff8b2c06f0]
/lib64/glibc-hwcaps/power10/libc.so.6(+0xaf310) [0x7fff868af310]
note: we would appreciate a report at https://github.com/rust-lang/rust
help: you can increase rustc's stack size by setting RUST_MIN_STACK=16777216
note: backtrace dumped due to SIGSEGV! resuming signal
error: could not compile `ravif` (lib)
Caused by:
  process didn't exit successfully: `/usr/bin/rustc --crate-name ravif --edition=2021 /usr/share/cargo/registry/ravif-0.11.20/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="threading"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("asm", "default", "threading"))' -C metadata=9f272b44988b7a59 -C extra-filename=-0ed2b73ed040c8d4 --out-dir /builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps --target powerpc64le-unknown-linux-gnu -C strip=debuginfo -L dependency=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps -L dependency=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/release/deps --extern avif_serialize=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps/libavif_serialize-457f9f921cb04493.rmeta --extern imgref=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps/libimgref-638996d326deedff.rmeta --extern loop9=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps/libloop9-97b3e1981ac617f3.rmeta --extern quick_error=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps/libquick_error-d7660098ff873461.rmeta --extern rav1e=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps/librav1e-08cf0bc3ca6cc41e.rmeta --extern rayon=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps/librayon-8788d979e4b00616.rmeta --extern rgb=/builddir/build/BUILD/clamav-1.4.3-build/clamav-1.4.3/redhat-linux-build/powerpc64le-unknown-linux-gnu/release/deps/librgb-9529ffe51329ed9c.rmeta --cap-lints allow -Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn -g -Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn` (signal: 11, SIGSEGV: invalid memory reference)
warning: build failed, waiting for other jobs to finish...


Other builds seem to have a missing symbol:

FAILED: [code=1] root_store_tool 
"/usr/bin/python3" "../../build/toolchain/gcc_link_wrapper.py" --output="./root_store_tool" -- clang++ -fuse-ld=lld -Wl,--fatal-warnings -Wl,--build-id=sha1 -fPIC -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,--icf=all -Wl,--color-diagnostics -Wl,--undefined-version -Wl,--no-call-graph-profile-sort --target=x86_64-unknown-linux-gnu -no-canonical-prefixes -Wl,-O2 -Wl,--gc-sections -Wl,-z,defs -Wl,--as-needed -nostdlib++ -rdynamic -pie -Wl,--disable-new-dtags prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_abort.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler2.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject.rlib -Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes   -o "./root_store_tool" -Wl,--start-group @"./root_store_tool.rsp" -Wl,--end-group   /usr/lib/clang/21/lib/x86_64-redhat-linux-gnu/libclang_rt.builtins.a -ldl -lpthread -lrt -lglib-2.0 -lgmodule-2.0 -lgobject-2.0 -lgthread-2.0 -latomic -ldouble-conversion -lnspr4 -lnss3 -lnssutil3 -lplc4 -lplds4 -lsmime3 -Wl,--start-group obj/third_party/rust/cxx/v1/lib/libcxx_lib.rlib obj/third_party/rust/foldhash/v0_1/lib/libfoldhash_lib.rlib obj/build/rust/allocator/libbuild_srust_sallocator_callocator.rlib obj/build/rust/allocator/liballoc_error_handler_impl_ffi.rlib obj/build/rust/allocator/liballocator_impls_ffi.rlib obj/base/libbase_crust_ulogger.rlib obj/base/libbase_clogging_ulog_useverity_ubindgen.rlib obj/third_party/rust/log/v0_4/lib/liblog_lib.rlib obj/build/rust/chromium_prelude/libchromium.rlib obj/third_party/rust/serde_json_lenient/v0_2/wrapper/libthird_uparty_srust_sserde_ujson_ulenient_sv0_u2_swrapper_cwrapper.rlib obj/third_party/rust/serde/v1/lib/libserde_lib.rlib obj/third_party/rust/serde_json_lenient/v0_2/lib/libserde_json_lenient_lib.rlib obj/third_party/rust/itoa/v1/lib/libitoa_lib.rlib obj/third_party/rust/memchr/v2/lib/libmemchr_lib.rlib obj/third_party/rust/ryu/v1/lib/libryu_lib.rlib -Wl,--end-group 
clang++: warning: argument unused during compilation: '-specs=/usr/lib/rpm/redhat/redhat-hardened-ld' [-Wunused-command-line-argument]
clang++: warning: argument unused during compilation: '-specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors' [-Wunused-command-line-argument]
clang++: warning: argument unused during compilation: '-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1' [-Wunused-command-line-argument]
clang++: warning: argument unused during compilation: '-specs=/usr/lib/rpm/redhat/redhat-package-notes' [-Wunused-command-line-argument]
ld.lld: error: undefined symbol: __rustc::__rust_alloc_error_handler_should_panic_v2
>>> referenced by alloc.rs:435 (library/alloc/src/alloc.rs:435)
>>>               alloc-89c079dc503872cc.alloc.6e7db227d0aa2641-cgu.0.rcgu.o:(__rustc::__rdl_oom) in archive prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc.rlib
>>> referenced by alloc.rs:355 (library/std/src/alloc.rs:355)
>>>               std-b50617b29e31fd0b.std.2a1a0cc949c77e59-cgu.0.rcgu.o:(std::alloc::default_alloc_error_hook::heae949e1e5961fe0) in archive prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd.rlib
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
[chrome:3741/52775] CXX obj/components/sqlite_proto/sqlite_proto/key_value_table.o
[chrome:3742/52775] CXX obj/components/unexportable_keys/unexportable_keys/ref_counted_unexportable_signing_key.o
[chrome:3743/52775] CXX obj/components/unexportable_keys/unexportable_keys/unexportable_key_loader.o
[chrome:3744/52775] CXX obj/components/unexportable_keys/unexportable_keys/background_long_task_scheduler.o
[chrome:3745/52775] CXX obj/components/unexportable_keys/unexportable_keys/unexportable_key_service_impl.o
[chrome:3746/52775] CXX obj/components/unexportable_keys/unexportable_keys/unexportable_key_task_manager.o
[chrome:3747/52775] CXX obj/components/unexportable_keys/unexportable_keys/unexportable_key_tasks.o
ninja: build stopped: subcommand failed.