readxl valgrind report

gistfile1.txt

$ R --vanilla -d valgrind < read.r 
==13800== Memcheck, a memory error detector
==13800== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==13800== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==13800== Command: /usr/lib/R/bin/exec/R --no-save --quiet --no-restore --vanilla
==13800== 
==13800== WARNING: valgrind ignores shmget(shmflg) SHM_HUGETLB
> readxl::read_excel('exp.xlsx')
==13800== Invalid free() / delete / delete[] / realloc()
==13800==    at 0x4C2D28B: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==13800==    by 0x16764E18: deallocate (new_allocator.h:110)
==13800==    by 0x16764E18: deallocate (alloc_traits.h:386)
==13800==    by 0x16764E18: _M_destroy (basic_string.h:185)
==13800==    by 0x16764E18: _M_dispose (basic_string.h:180)
==13800==    by 0x16764E18: ~basic_string (basic_string.h:544)
==13800==    by 0x16764E18: exception_to_r_condition(std::exception const&) (exceptions.h:164)
==13800==    by 0x16763644: readxl_read_xlsx_ (RcppExports.cpp:184)
==13800==    by 0x4F0916F: ??? (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F3F8EE: Rf_eval (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F41DE7: ??? (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F3F6E0: Rf_eval (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F40DA4: Rf_applyClosure (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F3F4BC: Rf_eval (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F41DE7: ??? (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F3F6E0: Rf_eval (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F40DA4: Rf_applyClosure (in /usr/lib/R/lib/libR.so)
==13800==  Address 0x13857848 is 24 bytes inside a block of size 40 alloc'd
==13800==    at 0x4C2C12F: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==13800==    by 0x15E98268: std::string::_Rep::_S_create(unsigned long, unsigned long, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21)
==13800==    by 0x15E9857A: std::string::_M_mutate(unsigned long, unsigned long, unsigned long) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21)
==13800==    by 0x15E98BAD: std::string::_M_replace_safe(unsigned long, unsigned long, char const*, unsigned long) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21)
==13800==    by 0x15B8EAE8: assign (basic_string.h:1149)
==13800==    by 0x15B8EAE8: operator= (basic_string.h:563)
==13800==    by 0x15B8EAE8: demangle(std::string const&) (api.cpp:129)
==13800==    by 0x16764A69: demangle (routines.h:137)
==13800==    by 0x16764A69: exception_to_r_condition(std::exception const&) (exceptions.h:164)
==13800==    by 0x16763644: readxl_read_xlsx_ (RcppExports.cpp:184)
==13800==    by 0x4F0916F: ??? (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F3F8EE: Rf_eval (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F41DE7: ??? (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F3F6E0: Rf_eval (in /usr/lib/R/lib/libR.so)
==13800==    by 0x4F40DA4: Rf_applyClosure (in /usr/lib/R/lib/libR.so)
==13800== 
Error: Invalid cell: lacks ref attribute
Execution halted
==13800== 
==13800== HEAP SUMMARY:
==13800==     in use at exit: 37,403,503 bytes in 17,949 blocks
==13800==   total heap usage: 46,844 allocs, 28,896 frees, 77,650,798 bytes allocated
==13800== 
==13800== LEAK SUMMARY:
==13800==    definitely lost: 40 bytes in 1 blocks
==13800==    indirectly lost: 0 bytes in 0 blocks
==13800==      possibly lost: 0 bytes in 0 blocks
==13800==    still reachable: 37,403,463 bytes in 17,948 blocks
==13800==         suppressed: 0 bytes in 0 blocks
==13800== Rerun with --leak-check=full to see details of leaked memory
==13800== 
==13800== For counts of detected and suppressed errors, rerun with: -v
==13800== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)