anchor.diff:     R6_2.2.2.tar.gz \
      mime_0.5.tar.gz \
      httr_1.3.1.tar.gz \
  -   rstudioapi_0.6.tar.gz \
  -   openssl_0.9.6.tar.gz \
  -   withr_2.0.0.tar.gz \
  +   rstudioapi_0.7.tar.gz \
  +   openssl_0.9.9.tar.gz \
  +   withr_2.1.0.tar.gz \
      brew_1.0-6.tar.gz \
      stringi_1.1.5.tar.gz \
      magrittr_1.5.tar.gz \
      stringr_1.2.0.tar.gz \
      roxygen2_5.0.1.tar.gz \
  -   BH_1.62.0-1.tar.gz \
  +   BH_1.65.0-1.tar.gz \
      XML_3.98-1.9.tar.gz \
      xml2_1.1.1.tar.gz \
      curl_2.8.1.tar.gz \
      rversions_1.0.3.tar.gz \
      git2r_0.19.0.tar.gz \
  -   devtools_1.13.3.tar.gz \
  +   devtools_1.13.4.tar.gz \
      downloader_0.4.tar.gz
   
   
  
positive.code:    https://mirrors.nics.utk.edu/cran/src/contrib/Archive/roxygen2/roxygen2_5.0.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/rversions_1.0.3.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/git2r_0.19.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/devtools_1.13.3.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/R6_2.2.2.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/mime_0.5.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/httr_1.3.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/RCurl_1.95-4.8.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/Rcpp_0.12.13.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/BH_1.62.0-1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/xml2_1.1.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/curl_2.8.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/jsonlite_1.5.tar.gz \
  
negative.code: 
  # R packages we need for devtools - and we need devtools to be able to update the rmarkdown package
  RUN DEBIAN_FRONTEND=noninteractive wget \
     https://mirrors.nics.utk.edu/cran/src/contrib/rstudioapi_0.7.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/openssl_0.9.9.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/withr_2.1.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/brew_1.0-6.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/stringi_1.1.5.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/magrittr_1.5.tar.gz \
  