anchor.diff:     lazyeval_0.2.1.tar.gz \
      DBI_0.8.tar.gz \
      tibble_1.4.2.tar.gz \
  -   glue_1.2.0.tar.gz \
      pkgconfig_2.0.1.tar.gz \
      plogr_0.2.0.tar.gz \
      bindr_0.1.1.tar.gz \
  
positive.code: 
  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
     jsonlite_1.5.tar.gz \
     digest_0.6.15.tar.gz \
     memoise_1.1.0.tar.gz \
     whisker_0.3-2.tar.gz \
     bitops_1.0-6.tar.gz \
     RCurl_1.95-4.10.tar.gz \
     Rcpp_0.12.16.tar.gz \
     plyr_1.8.4.tar.gz \
     R6_2.2.2.tar.gz \
     curl_3.2.tar.gz \
  
negative.code:    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_1.95-4.10.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/BH_1.66.0-1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/xml2_1.2.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/curl_3.2.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/jsonlite_1.5.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/digest_0.6.16.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/downloader_0.4.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/memoise_1.1.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/plyr_1.8.4.tar.gz \
  