Error(s) in re-building vignettes:
  ...
--- re-building ‘start_guide.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/ausplotsR.Rcheck/vign_test/ausplotsR/vignettes/start_guide_files/figure-html/fig1-1.png
576x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 53968 bytes
Input file size = 54118 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 41957
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 41957

Output IDAT size = 41957 bytes (12011 bytes decrease)
Output file size = 42035 bytes (12083 bytes = 22.33% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/ausplotsR.Rcheck/vign_test/ausplotsR/vignettes/start_guide_files/figure-html/unnamed-chunk-12-1.png
576x384 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 8480 bytes
Input file size = 9350 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 7509
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 7425
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 7425

Output IDAT size = 7425 bytes (1055 bytes decrease)
Output file size = 7503 bytes (1847 bytes = 19.75% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/ausplotsR.Rcheck/vign_test/ausplotsR/vignettes/start_guide_files/figure-html/unnamed-chunk-13-1.png
576x384 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 22933 bytes
Input file size = 23035 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 18262
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 18262

Output IDAT size = 18262 bytes (4671 bytes decrease)
Output file size = 18340 bytes (4695 bytes = 20.38% decrease)

Killed