Error(s) in re-building vignettes:
  ...
--- re-building ‘congress.Rmd’ using rmarkdown
trying URL 'https://www.govinfo.gov/bulkdata/BILLSTATUS/115/sres/BILLSTATUS-115-sres.zip'
Content type 'application/zip' length 1883678 bytes (1.8 MB)
==================================================
downloaded 1.8 MB

trying URL 'https://www.govinfo.gov/bulkdata/BILLSTATUS/115/sres/BILLSTATUS-115-sres.zip'
Content type 'application/zip' length 1883678 bytes (1.8 MB)
==================================================
downloaded 1.8 MB


Quitting from lines 110-111 [unnamed-chunk-8] (congress.Rmd)
Error: processing vignette 'congress.Rmd' failed with diagnostics:
there is no package called 'backbone'
--- failed re-building ‘congress.Rmd’

--- re-building ‘incidentally.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-3-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 12085 bytes
Input file size = 12175 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 11844
  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		IDAT size = 11130
  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 = 5		IDAT size = 11130

Output IDAT size = 11130 bytes (955 bytes decrease)
Output file size = 11208 bytes (967 bytes = 7.94% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-7-1.png
288x288 pixels, 8 bits/pixel, 230 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2062 bytes
Input file size = 2842 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1752
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1746
  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 = 1746

Output IDAT size = 1746 bytes (316 bytes decrease)
Output file size = 1824 bytes (1018 bytes = 35.82% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-7-2.png
288x288 pixels, 8 bits/pixel, 229 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2212 bytes
Input file size = 2989 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1820
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1810
  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 = 1810

Output IDAT size = 1810 bytes (402 bytes decrease)
Output file size = 1888 bytes (1101 bytes = 36.84% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-8-1.png
288x288 pixels, 8 bits/pixel, 235 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2092 bytes
Input file size = 2887 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1763
  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 = 1763

Output IDAT size = 1763 bytes (329 bytes decrease)
Output file size = 1841 bytes (1046 bytes = 36.23% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-8-2.png
288x288 pixels, 8 bits/pixel, 234 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2146 bytes
Input file size = 2938 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1841
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1833
  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 = 1833

Output IDAT size = 1833 bytes (313 bytes decrease)
Output file size = 1911 bytes (1027 bytes = 34.96% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-9-1.png
288x288 pixels, 8 bits/pixel, 232 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2101 bytes
Input file size = 2887 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1740
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1737
  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 = 1737

Output IDAT size = 1737 bytes (364 bytes decrease)
Output file size = 1815 bytes (1072 bytes = 37.13% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-9-2.png
288x288 pixels, 8 bits/pixel, 234 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2204 bytes
Input file size = 2996 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1871
  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 = 1871

Output IDAT size = 1871 bytes (333 bytes decrease)
Output file size = 1949 bytes (1047 bytes = 34.95% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-10-1.png
288x288 pixels, 8 bits/pixel, 233 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2176 bytes
Input file size = 2965 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1876
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1861
  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 = 1861

Output IDAT size = 1861 bytes (315 bytes decrease)
Output file size = 1939 bytes (1026 bytes = 34.60% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-10-2.png
288x288 pixels, 8 bits/pixel, 227 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2226 bytes
Input file size = 2997 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1831
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1828
  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 = 1828

Output IDAT size = 1828 bytes (398 bytes decrease)
Output file size = 1906 bytes (1091 bytes = 36.40% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-12-1.png
288x288 pixels, 8 bits/pixel, 236 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2101 bytes
Input file size = 2899 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1783
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1777
  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 = 1777

Output IDAT size = 1777 bytes (324 bytes decrease)
Output file size = 1855 bytes (1044 bytes = 36.01% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-12-2.png
288x288 pixels, 8 bits/pixel, 233 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2101 bytes
Input file size = 2890 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1802
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1790
  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 = 1790

Output IDAT size = 1790 bytes (311 bytes decrease)
Output file size = 1868 bytes (1022 bytes = 35.36% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-13-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 37876 bytes
Input file size = 38002 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 26064
  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 = 26064

Output IDAT size = 26064 bytes (11812 bytes decrease)
Output file size = 26142 bytes (11860 bytes = 31.21% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-13-2.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 13146 bytes
Input file size = 13236 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 11646
  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 = 11646

Output IDAT size = 11646 bytes (1500 bytes decrease)
Output file size = 11724 bytes (1512 bytes = 11.42% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-14-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 22670 bytes
Input file size = 22772 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 16982
  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 = 16982

Output IDAT size = 16982 bytes (5688 bytes decrease)
Output file size = 17060 bytes (5712 bytes = 25.08% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-14-2.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 14128 bytes
Input file size = 14218 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 12312
  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 = 12312

Output IDAT size = 12312 bytes (1816 bytes decrease)
Output file size = 12390 bytes (1828 bytes = 12.86% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-15-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 33857 bytes
Input file size = 33983 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 23512
  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 = 23512

Output IDAT size = 23512 bytes (10345 bytes decrease)
Output file size = 23590 bytes (10393 bytes = 30.58% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/incidentally.Rcheck/vign_test/incidentally/vignettes/incidentally_files/figure-html/unnamed-chunk-15-2.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 14617 bytes
Input file size = 14707 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 12721
  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 = 12721

Output IDAT size = 12721 bytes (1896 bytes decrease)
Output file size = 12799 bytes (1908 bytes = 12.97% decrease)

--- finished re-building ‘incidentally.Rmd’

SUMMARY: processing the following file failed:
  ‘congress.Rmd’

Error: Vignette re-building failed.
Execution halted