Version-Release number of selected component:
minetest-0.4.12-4.fc23

Additional info:
reporter:       libreport-2.6.3
backtrace_rating: 4
cmdline:        minetest
crash_function: operator delete
executable:     /usr/bin/minetest
global_pid:     2388
kernel:         4.2.8-300.fc23.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #6 operator delete at ../../../../libstdc++-v3/libsupc++/del_op.cc:46
 #7 __gnu_cxx::new_allocator<char>::deallocate at /usr/src/debug/gcc-5.3.1-20151207/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/ext/new_allocator.h:110
 #8 std::allocator_traits<std::allocator<char> >::deallocate at /usr/src/debug/gcc-5.3.1-20151207/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/alloc_traits.h:386
 #9 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_destroy at /usr/src/debug/gcc-5.3.1-20151207/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/basic_string.h:185
 #10 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_dispose at /usr/src/debug/gcc-5.3.1-20151207/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/basic_string.h:180
 #11 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_mutate at /usr/src/debug/gcc-5.3.1-20151207/obj-x86_64-redhat-linux/x86_64-redhat-linux/libstdc++-v3/include/bits/basic_string.tcc:331
 #12 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::push_back at /usr/include/c++/5.1.1/bits/basic_string.h:1081
 #13 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator+= at /usr/include/c++/5.1.1/bits/basic_string.h:960
 #14 Logbuf::bufchar at /usr/src/debug/minetest-0.4.12/src/log.cpp:184
 #15 Logbuf::xsputn at /usr/src/debug/minetest-0.4.12/src/log.cpp:164