Found the following significant warnings:
  /home/hornik/tmp/R.check/r-release-gcc/Work/build/Packages/BH/include/boost/geometry/index/detail/varray_detail.hpp:544:13: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘class boost::geometry::model::segment<boost::geometry::model::d2::point_xy<double> >’ with no trivial copy-assignment; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
  /home/hornik/tmp/R.check/r-release-gcc/Work/build/Packages/BH/include/boost/geometry/index/detail/varray_detail.hpp:544:13: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘struct std::pair<boost::geometry::model::box<boost::geometry::model::d2::point_xy<double> >, std::pair<unsigned int, unsigned int> >’ with no trivial copy-assignment; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
  /home/hornik/tmp/R.check/r-release-gcc/Work/build/Packages/BH/include/boost/geometry/index/detail/varray_detail.hpp:544:13: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘struct std::pair<boost::geometry::model::d2::point_xy<double>, std::pair<unsigned int, unsigned int> >’ with no trivial copy-assignment; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
  /home/hornik/tmp/R.check/r-release-gcc/Work/build/Packages/BH/include/boost/geometry/index/detail/varray_detail.hpp:237:13: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘class boost::geometry::model::segment<boost::geometry::model::d2::point_xy<double> >’ with no trivial copy-assignment; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
  /home/hornik/tmp/R.check/r-release-gcc/Work/build/Packages/BH/include/boost/geometry/index/detail/varray_detail.hpp:237:13: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘struct std::pair<boost::geometry::model::box<boost::geometry::model::d2::point_xy<double> >, std::pair<unsigned int, unsigned int> >’ with no trivial copy-assignment; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
  /home/hornik/tmp/R.check/r-release-gcc/Work/build/Packages/BH/include/boost/geometry/index/detail/varray_detail.hpp:237:13: warning: ‘void* memcpy(void*, const void*, size_t)’ writing to an object of type ‘struct std::pair<boost::geometry::model::d2::point_xy<double>, std::pair<unsigned int, unsigned int> >’ with no trivial copy-assignment; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
See ‘/home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/velox.Rcheck/00install.out’ for details.