Found the following significant warnings:
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting
  Warning: working directory was changed to 'D:/temp/Rtmpq4kXn4/RLIBS_18810294b7f49/oceanmap/test_files', resetting