Thread 2 (Thread 0x72659c0f66c0 (LWP 107746) "signal handler"):
#0  0x000072659da42740 in sigtimedwait () from /nix/store/lmn7lwydprqibdkghw7wgcn21yhllz13-glibc-2.40-66/lib/libc.so.6
No symbol table info available.
#1  0x000072659da41d5c in sigwait () from /nix/store/lmn7lwydprqibdkghw7wgcn21yhllz13-glibc-2.40-66/lib/libc.so.6
No symbol table info available.
#2  0x000072659f597d3a in nix::signalHandlerThread(__sigset_t) () from /nix/store/6ypjw406z8yhkjyl81ifs0s7qzl168ps-lix-2.94.0-devpre20250723_cc73479/lib/liblixutil.so
No symbol table info available.
#3  0x000072659f598a98 in std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(__sigset_t), __sigset_t> > >::_M_run() () from /nix/store/6ypjw406z8yhkjyl81ifs0s7qzl168ps-lix-2.94.0-devpre20250723_cc73479/lib/liblixutil.so
No symbol table info available.
#4  0x000072659deed064 in execute_native_thread_routine () from /nix/store/fkw48vh7ivlvlmhp4j30hy2gvg00jgin-gcc-14.3.0-lib/lib/libstdc++.so.6
No symbol table info available.
#5  0x000072659da9af08 in start_thread () from /nix/store/lmn7lwydprqibdkghw7wgcn21yhllz13-glibc-2.40-66/lib/libc.so.6
No symbol table info available.
#6  0x000072659db230ac in __clone3 () from /nix/store/lmn7lwydprqibdkghw7wgcn21yhllz13-glibc-2.40-66/lib/libc.so.6
No symbol table info available.

Thread 1 (Thread 0x72659c0ff600 (LWP 107742) "nix-build"):
#0  0x000072659db2357a in epoll_wait () from /nix/store/lmn7lwydprqibdkghw7wgcn21yhllz13-glibc-2.40-66/lib/libc.so.6
No symbol table info available.
#1  0x000072659f3737d9 in kj::UnixEventPort::wait() () from /nix/store/6yrj0i79ya95axhniyjrkjih5fgncwgc-capnproto-1.0.2/lib/libkj-async.so.1.0.2
No symbol table info available.
#2  0x000072659f35e646 in kj::EventLoop::wait() () from /nix/store/6yrj0i79ya95axhniyjrkjih5fgncwgc-capnproto-1.0.2/lib/libkj-async.so.1.0.2
No symbol table info available.
#3  0x000072659f35eda6 in kj::_::waitImpl(kj::Own<kj::_::PromiseNode, kj::_::PromiseDisposer>&&, kj::_::ExceptionOrValue&, kj::WaitScope&, kj::SourceLocation) () from /nix/store/6yrj0i79ya95axhniyjrkjih5fgncwgc-capnproto-1.0.2/lib/libkj-async.so.1.0.2
No symbol table info available.
#4  0x000057ac2541439a in kj::Promise<boost::outcome_v2::basic_result<void, std::__exception_ptr::exception_ptr, boost::outcome_v2::policy::exception_ptr_rethrow<void, std::__exception_ptr::exception_ptr, void> > >::wait(kj::WaitScope&, kj::SourceLocation) ()
No symbol table info available.
#5  0x000057ac254139be in auto nix::AsyncIoRoot::blockOn<boost::outcome_v2::basic_result<void, std::__exception_ptr::exception_ptr, boost::outcome_v2::policy::exception_ptr_rethrow<void, std::__exception_ptr::exception_ptr, void> > >(kj::Promise<boost::outcome_v2::basic_result<void, std::__exception_ptr::exception_ptr, boost::outcome_v2::policy::exception_ptr_rethrow<void, std::__exception_ptr::exception_ptr, void> > >&&, std::source_location) ()
No symbol table info available.
#6  0x000057ac2559160c in nix::main_nix_build(nix::AsyncIoRoot&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::list<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >)::$_3::operator()(std::vector<nix::DerivedPath, std::allocator<nix::DerivedPath> > const&) const ()
No symbol table info available.
#7  0x000057ac2558ac50 in nix::main_nix_build(nix::AsyncIoRoot&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::list<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) ()
No symbol table info available.
#8  0x000057ac255989d8 in void std::__invoke_impl<void, void (*&)(nix::AsyncIoRoot&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::list<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >), nix::AsyncIoRoot&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::list<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >(std::__invoke_other, void (*&)(nix::AsyncIoRoot&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::list<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >), nix::AsyncIoRoot&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, std::__cxx11::list<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >&&) ()
No symbol table info available.
#9  0x000057ac254ebe91 in nix::mainWrapped(nix::AsyncIoRoot&, int, char**) ()
No symbol table info available.
#10 0x000057ac254f00a5 in std::_Function_handler<void (), main::$_0>::_M_invoke(std::_Any_data const&) ()
No symbol table info available.
#11 0x000072659fb42e96 in nix::handleExceptions(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::function<void ()>) () from /nix/store/6ypjw406z8yhkjyl81ifs0s7qzl168ps-lix-2.94.0-devpre20250723_cc73479/lib/liblixmain.so
No symbol table info available.
#12 0x000057ac254ef962 in main ()
No symbol table info available.
Saved corefile core.107742
quit
Detaching from program: /nix/store/6ypjw406z8yhkjyl81ifs0s7qzl168ps-lix-2.94.0-devpre20250723_cc73479/bin/nix, process 107742
[Inferior 1 (process 107742) detached]