anchor.diff:     dplyr_0.7.4.tar.gz 
   
   RUN DEBIAN_FRONTEND=noninteractive wget \
  -   https://mirrors.nics.utk.edu/cran/src/contrib/chron_2.3-53.tar.gz \
  +   https://mirrors.nics.utk.edu/cran/src/contrib/chron_2.3-52.tar.gz \
      https://mirrors.nics.utk.edu/cran/src/contrib/data.table_1.10.4-3.tar.gz \
      https://mirrors.nics.utk.edu/cran/src/contrib/rematch_1.0.1.tar.gz \
      https://mirrors.nics.utk.edu/cran/src/contrib/cellranger_1.1.0.tar.gz \
  
positive.code:    https://mirrors.nics.utk.edu/cran/src/contrib/pbkrtest_0.4-7.tar.gz 
  	
  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
     chron_2.3-53.tar.gz \
     data.table_1.10.4-3.tar.gz \
     rematch_1.0.1.tar.gz \
     cellranger_1.1.0.tar.gz \
  
negative.code:    pbkrtest_0.4-7.tar.gz 
  
  RUN rm \
     chron_2.3-52.tar.gz \
     data.table_1.10.4-3.tar.gz \
     rematch_1.0.1.tar.gz \
     cellranger_1.1.0.tar.gz \
  