anchor.diff:     crayon_1.3.4.tar.gz \
      assertthat_0.2.0.tar.gz \
      cli_1.1.0.tar.gz \
  +   backports_1.1.3.tar.gz \
      rprojroot_1.3-2.tar.gz \
      desc_1.2.0.tar.gz \
      prettyunits_1.0.2.tar.gz \
  
positive.code:    https://archive.linux.duke.edu/cran/src/contrib/cli_1.1.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/desc_1.2.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/prettyunits_1.0.2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/rprojroot_1.3-2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/withr_2.1.2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/pkgbuild_1.0.2.tar.gz \
  
negative.code:    ggdendro_0.1-20.tar.gz \
     mnormt_1.5-5.tar.gz \
     psych_1.8.4.tar.gz \
     broom_0.5.0.tar.gz \
     reshape_0.8.7.tar.gz \
     progress_1.2.0.tar.gz \
  