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WARNING: ThreadSanitizer: data race (pid=2749)
  Write of size 4 at 0x00000187cae4 by main thread:
    #0 reader_data_t::command_line_changed(editable_line_t const*) /home/wheel/zanchey/src/fish-shell/src/reader.cpp:516:27 (fish+0x00000072dd49)
    #1 insert_string(editable_line_t*, std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > const&, bool) /home/wheel/zanchey/src/fish-shell/src/reader.cpp:961:9 (fish+0x0000007381af)
    #2 insert_char(editable_line_t*, wchar_t, bool) /home/wheel/zanchey/src/fish-shell/src/reader.cpp:990:12 (fish+0x000000739e08)
    #3 reader_readline(int) /home/wheel/zanchey/src/fish-shell/src/reader.cpp:3181:21 (fish+0x000000737856)
    #4 read_i() /home/wheel/zanchey/src/fish-shell/src/reader.cpp:2250:30 (fish+0x00000073b0e0)
    #5 reader_read(int, io_chain_t const&) /home/wheel/zanchey/src/fish-shell/src/reader.cpp:3344:36 (fish+0x00000073ad56)
    #6 main /home/wheel/zanchey/src/fish-shell/src/fish.cpp:391:19 (fish+0x00000076d2da)

  Previous read of size 4 at 0x00000187cae4 by thread T3:
    #0 get_autosuggestion_performer(std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > const&, unsigned long, history_t*)::$_0::operator()() const /home/wheel/zanchey/src/fish-shell/src/reader.cpp:1132:33 (fish+0x00000073d5ac)
    #1 std::_Function_handler<autosuggestion_result_t (), get_autosuggestion_performer(std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > const&, unsigned long, history_t*)::$_0>::_M_invoke(std::_Any_data const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/functional:2024:9 (fish+0x00000073d19f)
    #2 std::function<autosuggestion_result_t ()>::operator()() const /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/functional:2439:14 (fish+0x000000742d3b)
    #3 int _iothread_trampoline<autosuggestion_result_t>::perform<std::function<autosuggestion_result_t ()>, void (*)(autosuggestion_result_t)>(std::function<autosuggestion_result_t ()> const&, void (* const&)(autosuggestion_result_t))::{lambda()#1}::operator()() const /home/wheel/zanchey/src/fish-shell/./src/iothread.h:44:56 (fish+0x000000742bcd)
    #4 std::_Function_handler<void (), int _iothread_trampoline<autosuggestion_result_t>::perform<std::function<autosuggestion_result_t ()>, void (*)(autosuggestion_result_t)>(std::function<autosuggestion_result_t ()> const&, void (* const&)(autosuggestion_result_t))::{lambda()#1}>::_M_invoke(std::_Any_data const&) /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/functional:2039:2 (fish+0x0000007428d0)
    #5 std::function<void ()>::operator()() const /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/functional:2439:14 (fish+0x0000006bfb49)
    #6 iothread_worker(void*) /home/wheel/zanchey/src/fish-shell/src/iothread.cpp:127:9 (fish+0x0000006cd0f3)

  Location is global 's_generation_count' of size 4 at 0x00000187cae4 (fish+0x00000187cae4)

  Thread T3 (tid=3117, running) created by main thread at:
    #0 pthread_create <null> (fish+0x000000548b73)
    #1 iothread_spawn() /home/wheel/zanchey/src/fish-shell/src/iothread.cpp:167:5 (fish+0x0000006cc79c)
    #2 iothread_perform_impl(std::function<void ()>&&, std::function<void ()>&&) /home/wheel/zanchey/src/fish-shell/src/iothread.cpp:198:9 (fish+0x0000006cc530)
    #3 int _iothread_trampoline<autosuggestion_result_t>::perform<std::function<autosuggestion_result_t ()>, void (*)(autosuggestion_result_t)>(std::function<autosuggestion_result_t ()> const&, void (* const&)(autosuggestion_result_t)) /home/wheel/zanchey/src/fish-shell/./src/iothread.h:44:16 (fish+0x0000007423fb)
    #4 int iothread_perform<std::function<autosuggestion_result_t ()>, void (*)(autosuggestion_result_t)>(std::function<autosuggestion_result_t ()> const&, void (* const&)(autosuggestion_result_t)) /home/wheel/zanchey/src/fish-shell/./src/iothread.h:67:12 (fish+0x0000007421f8)
    #5 update_autosuggestion() /home/wheel/zanchey/src/fish-shell/src/reader.cpp:1215:9 (fish+0x00000073c385)
    #6 reader_super_highlight_me_plenty(int, bool) /home/wheel/zanchey/src/fish-shell/src/reader.cpp:2158:9 (fish+0x000000737ed8)
    #7 insert_string(editable_line_t*, std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > const&, bool) /home/wheel/zanchey/src/fish-shell/src/reader.cpp:979:9 (fish+0x00000073837a)
    #8 reader_readline(int) /home/wheel/zanchey/src/fish-shell/src/reader.cpp:2403:17 (fish+0x000000732fc1)
    #9 read_i() /home/wheel/zanchey/src/fish-shell/src/reader.cpp:2250:30 (fish+0x00000073b0e0)
    #10 reader_read(int, io_chain_t const&) /home/wheel/zanchey/src/fish-shell/src/reader.cpp:3344:36 (fish+0x00000073ad56)
    #11 main /home/wheel/zanchey/src/fish-shell/src/fish.cpp:391:19 (fish+0x00000076d2da)

SUMMARY: ThreadSanitizer: data race /home/wheel/zanchey/src/fish-shell/src/reader.cpp:516:27 in reader_data_t::command_line_changed(editable_line_t const*)