anchor.diff:     plyr_1.8.4.tar.gz \
      R6_2.2.0.tar.gz \
      curl_2.3.tar.gz \
  -   openssl_0.9.5.tar.gz \
  +   openssl_0.9.6.tar.gz \
      mime_0.5.tar.gz \
      httr_1.2.1.tar.gz \
      rstudioapi_0.6.tar.gz \
  
positive.code:    http://archive.linux.duke.edu/cran/src/contrib/RCurl_1.95-4.8.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/Rcpp_0.12.9.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/BH_1.62.0-1.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/xml2_1.0.0.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/curl_2.3.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/jsonlite_1.1.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/digest_0.6.12.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/downloader_0.4.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/memoise_1.0.0.tar.gz \
  
negative.code:    http://archive.linux.duke.edu/cran/src/contrib/bitops_1.0-6.tar.gz
  
  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
     jsonlite_1.3.tar.gz \
     digest_0.6.12.tar.gz \
     memoise_1.0.0.tar.gz \
     whisker_0.3-2.tar.gz \
  