Found the following significant warnings:
  /data/gannet/ripley/R/test-3.6/RcppParallel/include/tbb/concurrent_hash_map.h:169:68: warning: ‘void* memset(void*, int, size_t)’ clearing an object of type ‘struct tbb::interface5::internal::hash_map_base::bucket’ with no trivial copy-assignment; use value-initialization instead [-Wclass-memaccess]
  /data/gannet/ripley/R/test-3.6/sparsepp/include/sparsepp/spp.h:2105:23: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘spp::sparsetable<std::pair<const std::pair<unsigned int, unsigned int>, int>, spp::libc_allocator<std::pair<const std::pair<unsigned int, unsigned int>, int> > >::group_type’ {aka ‘class spp::sparsegroup<std::pair<const std::pair<unsigned int, unsigned int>, int>, spp::libc_allocator<std::pair<const std::pair<unsigned int, unsigned int>, int> > >’} with no trivial copy-assignment; use copy-initialization instead [-Wclass-memaccess]
  /data/gannet/ripley/R/test-3.6/sparsepp/include/sparsepp/spp.h:2105:23: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘spp::sparsetable<std::pair<const std::pair<unsigned int, unsigned int>, float>, spp::libc_allocator<std::pair<const std::pair<unsigned int, unsigned int>, float> > >::group_type’ {aka ‘class spp::sparsegroup<std::pair<const std::pair<unsigned int, unsigned int>, float>, spp::libc_allocator<std::pair<const std::pair<unsigned int, unsigned int>, float> > >’} with no trivial copy-assignment; use copy-initialization instead [-Wclass-memaccess]
  /data/gannet/ripley/R/test-3.6/sparsepp/include/sparsepp/spp.h:1384:19: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘spp::sparsegroup<std::pair<const std::pair<unsigned int, unsigned int>, int>, spp::libc_allocator<std::pair<const std::pair<unsigned int, unsigned int>, int> > >::value_type’ {aka ‘struct std::pair<const std::pair<unsigned int, unsigned int>, int>’} with no trivial copy-assignment; use copy-initialization instead [-Wclass-memaccess]
  /data/gannet/ripley/R/test-3.6/sparsepp/include/sparsepp/spp.h:1384:19: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘spp::sparsegroup<std::pair<const std::pair<unsigned int, unsigned int>, float>, spp::libc_allocator<std::pair<const std::pair<unsigned int, unsigned int>, float> > >::value_type’ {aka ‘struct std::pair<const std::pair<unsigned int, unsigned int>, float>’} with no trivial copy-assignment; use copy-initialization instead [-Wclass-memaccess]
  /data/gannet/ripley/R/test-3.6/sparsepp/include/sparsepp/spp_utils.h:398:44: warning: ‘void* realloc(void*, size_t)’ moving an object of non-trivially copyable type ‘struct std::pair<const std::pair<unsigned int, unsigned int>, int>’; use ‘new’ and ‘delete’ instead [-Wclass-memaccess]
  /data/gannet/ripley/R/test-3.6/sparsepp/include/sparsepp/spp_utils.h:398:44: warning: ‘void* realloc(void*, size_t)’ moving an object of non-trivially copyable type ‘struct std::pair<const std::pair<unsigned int, unsigned int>, float>’; use ‘new’ and ‘delete’ instead [-Wclass-memaccess]
  /data/gannet/ripley/R/test-3.6/sparsepp/include/sparsepp/spp.h:2105:23: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘spp::sparsetable<std::pair<const std::__cxx11::basic_string<char>, unsigned int>, spp::libc_allocator<std::pair<const std::__cxx11::basic_string<char>, unsigned int> > >::group_type’ {aka ‘class spp::sparsegroup<std::pair<const std::__cxx11::basic_string<char>, unsigned int>, spp::libc_allocator<std::pair<const std::__cxx11::basic_string<char>, unsigned int> > >’} with no trivial copy-assignment; use copy-initialization instead [-Wclass-memaccess]
See ‘/data/gannet/ripley/R/packages/tests-devel/text2vec.Rcheck/00install.out’ for details.