anchor.diff:     https://mirrors.nics.utk.edu/cran/src/contrib/tibble_1.4.2.tar.gz \
      https://mirrors.nics.utk.edu/cran/src/contrib/bindr_0.1.1.tar.gz \
      https://mirrors.nics.utk.edu/cran/src/contrib/bindrcpp_0.2.2.tar.gz \
  -   https://mirrors.nics.utk.edu/cran/src/contrib/glue_1.2.0.tar.gz \
      https://mirrors.nics.utk.edu/cran/src/contrib/pkgconfig_2.0.1.tar.gz \
      https://mirrors.nics.utk.edu/cran/src/contrib/plogr_0.2.0.tar.gz \
      https://mirrors.nics.utk.edu/cran/src/contrib/dplyr_0.7.4.tar.gz \
  
positive.code:    openssl_1.0.1.tar.gz \
     withr_2.1.2.tar.gz \
     brew_1.0-6.tar.gz \
     stringi_1.1.7.tar.gz \
     magrittr_1.5.tar.gz \
     stringr_1.3.0.tar.gz \
     roxygen2_5.0.1.tar.gz \
     BH_1.66.0-1.tar.gz \
     XML_3.98-1.11.tar.gz \
  
negative.code:    tibble_1.4.2.tar.gz \
     bindr_0.1.1.tar.gz \
     bindrcpp_0.2.2.tar.gz \
     pkgconfig_2.0.1.tar.gz \
     plogr_0.2.0.tar.gz \
     dplyr_0.7.4.tar.gz 
  