test_raster stderr

/usr/lib/python2.7/dist-packages/numpy/core/__init__.py:6: DeprecationWarning: CObject type is not supported in 3.x. Please use capsule objects instead.
  from . import multiarray
/usr/lib/python2.7/dist-packages/numpy/core/__init__.py:7: DeprecationWarning: CObject type is not supported in 3.x. Please use capsule objects instead.
  from . import umath
etc/python/grass/lib/gis.py:801: DeprecationWarning: classic int division
  ('__val', c_ulong * (1024 / (8 * sizeof(c_ulong)))),
/usr/lib/python2.7/xml/etree/ElementTree.py:1627: DeprecationWarning: This method of XMLParser is deprecated.  Define doctype() method on the TreeBuilder target.
  DeprecationWarning,
Copy raster <elevation@PERMANENT> to current mapset as <tmpelevation>
.WARNING: G__open(read): Unable to open '/grassdata/tests-grassdata/nc_spm_08_grass7/__lib_python_pygrass_raster_test_raster/cellhd/elevation': No such file or directory
WARNING: G__open(read): Unable to open '/grassdata/tests-grassdata/nc_spm_08_grass7/__lib_python_pygrass_raster_test_raster/cellhd/elevation': No such file or directory
ERROR: Unable to open header file for raster map <elevation@>