AddressSanitizer: heap-use-after-free on addres xxx

[flyinskyin2013]

Asan messages:

READ of size 173 at 0x00766930acc0 thread T7
    #0 0x76a133ab38 in __interceptor_memcpy ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:827
    #1 0x76a0e1a544 in tokenizers::HFTokenizer::Decode[abi:cxx11](std::vector<int, std::allocator<int> > const&) 


0x00766930acc0 is located 0 bytes inside of 173-byte region [0x00766930acc0,0x00766930ad6d)
freed by thread T0 here:
    #0 0x76a13a9fe8 in __interceptor_free ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:127
    #1 0x76a0e1d654 in tokenizers_decode

previously allocated by thread T7 here:
    #0 0x76a13aa2f4 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
    #1 0x76a0e2abcc in alloc::str::join_generic_copy::h968362ed642e72e2

My solution:

TokenizerObj.decode() must be called in one thread.