.
Thread 5 (Thread 0x7ff8f4fcd700 (LWP 1949)):
#0  0x00007ff8f7476219 in syscall () from /tmp/apport_sandbox_4adiydqt/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007ff8f76a4a3a in ?? ()
No symbol table info available.
#2  0x0000000000000068 in ?? ()
No symbol table info available.
#3  0x0000000024939ca3 in ?? ()
No symbol table info available.
#4  0x000000000000000e in ?? ()
No symbol table info available.
#5  0x000000003b9ac37d in ?? ()
No symbol table info available.
#6  0x00007ff8f4fcccb0 in ?? ()
No symbol table info available.
#7  0x2d2f4345fbc1ac00 in ?? ()
No symbol table info available.
#8  0x0000000000000001 in ?? ()
No symbol table info available.
#9  0x0000557a431edff8 in ?? ()
No symbol table info available.
#10 0x00000000072128d4 in ?? ()
No symbol table info available.
#11 0x00007ff8f762b0c1 in ?? ()
No symbol table info available.
#12 0x0000557a431edfe0 in ?? ()
No symbol table info available.
#13 0x00000000072128d4 in ?? ()
No symbol table info available.
#14 0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 4 (Thread 0x7ff8f5858700 (LWP 1216)):
#0  0x00007ff8f74706d9 in poll () from /tmp/apport_sandbox_4adiydqt/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007ff8f7659c76 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (Thread 0x7ff8f6059700 (LWP 1215)):
#0  0x00007ff8f74706d9 in poll () from /tmp/apport_sandbox_4adiydqt/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007ff8f7659c76 in ?? ()
No symbol table info available.
#2  0x0000006e0000005c in ?? ()
No symbol table info available.
#3  0x0000000100000077 in ?? ()
No symbol table info available.
#4  0xffffffff7fffffff in ?? ()
No symbol table info available.
#5  0x2d2f4345fbc1ac00 in ?? ()
No symbol table info available.
#6  0x00007fff76a54d5f in ?? ()
No symbol table info available.
#7  0x0000557a43208380 in ?? ()
No symbol table info available.
#8  0x0000000000000001 in ?? ()
No symbol table info available.
#9  0x00007fff76a54d5e in ?? ()
No symbol table info available.
#10 0x00007fff76a54d5f in ?? ()
No symbol table info available.
#11 0x00007fff76a54df0 in ?? ()
No symbol table info available.
#12 0x00007ff8f6058e00 in ?? ()
No symbol table info available.
#13 0x00007ff8f7659d9c in ?? ()
No symbol table info available.
#14 0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7ff8f6e8b900 (LWP 1189)):
#0  0x00007ff8f74706d9 in poll () from /tmp/apport_sandbox_4adiydqt/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007ff8f7659c76 in ?? ()
No symbol table info available.
#2  0x000000000000012c in ?? ()
No symbol table info available.
#3  0x00000001431edac0 in ?? ()
No symbol table info available.
#4  0x000003ae7fffffff in ?? ()
No symbol table info available.
#5  0x2d2f4345fbc1ac00 in ?? ()
No symbol table info available.
#6  0x0000000000000013 in ?? ()
No symbol table info available.
#7  0x0000557a431edbb0 in ?? ()
No symbol table info available.
#8  0x0000557a431edbbc in ?? ()
No symbol table info available.
#9  0x0000557a431edbb0 in ?? ()
No symbol table info available.
#10 0x0000557a431ef1a0 in ?? ()
No symbol table info available.
#11 0x00007fff76a55720 in ?? ()
No symbol table info available.
#12 0x000000000000012c in ?? ()
No symbol table info available.
#13 0x00007ff8f765a002 in ?? ()
No symbol table info available.
#14 0x0000557a4149916c in ?? ()
No symbol table info available.
#15 0x00007ff8f76580a1 in ?? ()
No symbol table info available.
#16 0x0000557a431e8c00 in ?? ()
No symbol table info available.
#17 0x0000557a431e8c00 in ?? ()
No symbol table info available.
#18 0x0000557a431e95e0 in ?? ()
No symbol table info available.
#19 0x0000557a41477d14 in main (argc=<optimized out>, argv=<optimized out>) at pk-main.c:244
        loop = 0x557a43298a90
        context = <optimized out>
        helper = {loop = 0x557a431edbb0, engine = 0x557a431ef1a0, exit_idle_time = 300, timer_id = 9}
        ret = <optimized out>
        disable_timer = 0
        version = 0
        timed_exit = 0
        immediate_exit = 0
        keep_environment = 0
        exit_idle_time = 2
        error = 0x0
        backend_name = 0x0
        conf_filename = 0x2 <error: Cannot access memory at address 0x2>
        conf = 0x557a431edac0
        engine = 0x7ff8f7669490
        options = {{long_name = 0x557a4149ff2d "backend", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x7fff76a55728, description = 0x557a41499190 "Packaging backend to use, e.g. dummy", arg_description = 0x0}, {long_name = 0x557a4149902b "disable-timer", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff76a5570c, description = 0x557a41499039 "Disable the idle timer", arg_description = 0x0}, {long_name = 0x557a41499050 "version", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff76a55710, description = 0x557a41499058 "Show version and exit", arg_description = 0x0}, {long_name = 0x557a4149906e "timed-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff76a55714, description = 0x557a41499079 "Exit after a small delay", arg_description = 0x0}, {long_name = 0x557a41499092 "immediate-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff76a55718, description = 0x557a414991b8 "Exit after the engine has loaded", arg_description = 0x0}, {long_name = 0x557a414990a1 "keep-environment", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff76a5571c, description = 0x557a414991e0 "Don't clear environment on startup", arg_description = 0x0}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}
        __func__ = "main"
.
Thread 1 (Thread 0x7ff8e57aa700 (LWP 1951)):
#0  0x00007ff8f74e6651 in ?? () from /tmp/apport_sandbox_4adiydqt/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007ff8f43cf481 in ?? ()
No symbol table info available.
#2  0x000000000000008c in ?? ()
No symbol table info available.
#3  0x2d2f4345fbc1ac00 in ?? ()
No symbol table info available.
#4  0x00007ff800000001 in ?? ()
No symbol table info available.
#5  0x00007ff8e57a9b50 in ?? ()
No symbol table info available.
#6  0x00007ff8e57a9b20 in ?? ()
No symbol table info available.
#7  0x00007ff8e57a9b40 in ?? ()
No symbol table info available.
#8  0x000000000000008c in ?? ()
No symbol table info available.
#9  0x00007ff8e57a9b0c in ?? ()
No symbol table info available.
#10 0x00007ff8e57a9b60 in ?? ()
No symbol table info available.
#11 0x00007ff8f5018c92 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::replace (__n2=<optimized out>, __s=<optimized out>, __n1=0, __pos=0, this=0x7ff8e57a9b40) at /usr/include/c++/8/bits/basic_string.h:1927
No locals.
#12 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::replace (__k2=<optimized out>, __k1=<optimized out>, __i2=..., __i1=..., this=0x7ff8e57a9b40) at /usr/include/c++/8/bits/basic_string.h:2121
No locals.
#13 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign<char*, void> (__last=<optimized out>, __first=<optimized out>, this=0x7ff8e57a9b40) at /usr/include/c++/8/bits/basic_string.h:1471
No locals.
#14 std::__cxx11::basic_stringbuf<char, std::char_traits<char>, std::allocator<char> >::str (this=0x7ff8e57a9b68) at /usr/include/c++/8/sstream:174
        __ret = <optimized out>
        __ret = <optimized out>
#15 std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >::str (this=0x7ff81c46ed28) at /usr/include/c++/8/sstream:780
No locals.
#16 show_errors (job=0x557a432be3e0, errorCode=PK_ERROR_ENUM_CANNOT_FETCH_SOURCES, errModify=false) at apt-messages.cpp:55
        errors = <incomplete type>
        Err = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7ff8d800de60 "\200\362\b\330\370\177"}, _M_string_length = 44, {_M_local_buf = "X", '\000' <repeats 14 times>, _M_allocated_capacity = 88}}
#17 0x0000557a4148c03a in pk_backend_job_thread_setup (thread_data=0x557a432bc870) at pk-backend-job.c:726
        helper = 0x557a432bc870
#18 0x00007ff8f768290d in ?? ()
No symbol table info available.
#19 0x0000000000000000 in ?? ()
No symbol table info available.