C:\Buildbot\win32-1809\build\sql\unireg.cc(1253,15): error C2220: the following warning is treated as an error [C:\Buildbot\win32-1809\build\sql\sql.vcxproj]

C:\Buildbot\win32-1809\build\sql\unireg.cc(1253,15): error C2220:   if (reserve(store_size)) [C:\Buildbot\win32-1809\build\sql\sql.vcxproj]

C:\Buildbot\win32-1809\build\sql\unireg.cc(1253,15): error C2220:               ^ [C:\Buildbot\win32-1809\build\sql\sql.vcxproj]

C:\Buildbot\win32-1809\build\sql\unireg.cc(1253,15): warning C4244: 'argument': conversion from 'ulonglong' to 'size_t', possible loss of data [C:\Buildbot\win32-1809\build\sql\sql.vcxproj]

C:\Buildbot\win32-1809\build\sql\unireg.cc(1253,15): warning C4244:   if (reserve(store_size)) [C:\Buildbot\win32-1809\build\sql\sql.vcxproj]

C:\Buildbot\win32-1809\build\sql\unireg.cc(1253,15): warning C4244:               ^ [C:\Buildbot\win32-1809\build\sql\sql.vcxproj]