#include <boost/process/system.hpp>

int main() {
    boost::process::system("/bin/true", "");
}

$ ./test
/usr/include/c++/11/bits/basic_string.h:1115: std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::reference std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::front() [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::reference = char&]: Assertion '!empty()' failed.
Aborted (core dumped)

#0  0x00007fdea8896e5c in __pthread_kill_implementation () from /lib64/libc.so.6
#1  0x00007fdea8846a76 in raise () from /lib64/libc.so.6
#2  0x00007fdea88307fc in abort () from /lib64/libc.so.6
#3  0x00007fdea8bbee80 in std::__glibcxx_assert_fail(char const*, int, char const*, char const*) () from /lib64/libstdc++.so.6
#4  0x0000000000408dd7 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::front() ()
#5  0x00000000004083b9 in boost::process::detail::posix::exe_cmd_init<char>::make_cmd() ()
#6  0x000000000041d1dd in void boost::process::detail::posix::exe_cmd_init<char>::on_setup<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > >(boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > >&) ()
#7  0x000000000041b43c in void boost::process::detail::posix::on_setup_t<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > >::operator()<boost::process::detail::posix::exe_cmd_init<char> >(boost::process::detail::posix::exe_cmd_init<char>&) const ()
#8  0x0000000000419a7d in void boost::fusion::detail::for_each_linear<boost::fusion::joint_view_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, 0>, boost::fusion::vector_iterator<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, 1>, boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, 0>, boost::fusion::vector_iterator<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, 3>, boost::process::detail::is_initializer<mpl_::arg<-1> > > >, boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, 3>, boost::fusion::vector_iterator<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, 3>, boost::process::detail::is_initializer<mpl_::arg<-1> > >, boost::process::detail::posix::on_setup_t<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > > >(boost::fusion::joint_view_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, 0>, boost::fusion::vector_iterator<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, 1>, boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, 0>, boost::fusion::vector_iterator<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, 3>, boost::process::detail::is_initializer<mpl_::arg<-1> > > > const&, boost::fusion::filter_iterator<boost::fusion::forward_traversal_tag, boost::fusion::vector_iterator<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, 3>, boost::fusion::vector_iterator<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, 3>, boost::process::detail::is_initializer<mpl_::arg<-1> > > const&, boost::process::detail::posix::on_setup_t<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > >&, mpl_::bool_<false>) ()
#9  0x000000000041846b in void boost::fusion::detail::for_each_dispatch<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > >, boost::process::detail::posix::on_setup_t<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > >, boost::fusion::forward_traversal_tag>(boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > >&, boost::process::detail::posix::on_setup_t<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > >&, boost::fusion::forward_traversal_tag) ()
#10 0x000000000041661f in void boost::fusion::detail::for_each<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > >, boost::process::detail::posix::on_setup_t<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > > >(boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > >&, boost::process::detail::posix::on_setup_t<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > >&, mpl_::bool_<false>) ()
#11 0x00000000004146c8 in boost::enable_if<boost::fusion::traits::is_sequence<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > >, void>::type boost::fusion::for_each<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > >, boost::process::detail::posix::on_setup_t<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > > >(boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > >&, boost::process::detail::posix::on_setup_t<boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > > >) ()
#12 0x0000000000412de9 in boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > >::invoke(mpl_::bool_<false>, mpl_::bool_<false>) ()
--Type <RET> for more, q to quit, c to continue without paging-- 
#13 0x000000000041196f in boost::process::detail::posix::executor<boost::fusion::joint_view<boost::fusion::tuple<boost::process::detail::posix::exe_cmd_init<char> >, boost::fusion::filter_view<boost::fusion::tuple<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&> const, boost::process::detail::is_initializer<mpl_::arg<-1> > > > >::operator()() ()
#14 0x0000000000410522 in boost::process::child boost::process::detail::basic_execute_impl<char, char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_>(char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&&) ()
#15 0x000000000040f1da in boost::process::child boost::process::detail::execute_impl<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_>(char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&&) ()
#16 0x000000000040daf0 in boost::process::child::child<char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_>(char const (&) [10], char const (&) [1], boost::process::detail::posix::sig_init_&&) ()
#17 0x000000000040bde8 in int boost::process::detail::system_impl<boost::asio::io_context, char const (&) [10], char const (&) [1]>(std::integral_constant<bool, false>, std::integral_constant<bool, false>, char const (&) [10], char const (&) [1]) ()
#18 0x0000000000409ec3 in int boost::process::system<char const (&) [10], char const (&) [1]>(char const (&) [10], char const (&) [1]) ()
#19 0x00000000004045a4 in main ()
(gdb)

boost::process::system("")

boost::process::system(std::vector<std::string>{})