Since one hour, Travis builds are failing on Bionic, e.g. from this Travis cron build I get:
$ sudo apt-get install -y --no-install-recommends build-essential gcc g++ libblas-dev liblapack-dev libncurses5-dev libreadline-dev libjpeg-dev libpcre3-dev libpng-dev zlib1g-dev libbz2-dev liblzma-dev libicu-dev cdbs qpdf texinfo libssh2-1-dev devscriptsgfortran
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libpng12-dev' instead of 'libpng-dev'
E: Unable to locate package devscriptsgfortran
The command "eval sudo apt-get install -y --no-install-recommends build-essential gcc g++ libblas-dev liblapack-dev libncurses5-dev libreadline-dev libjpeg-dev libpcre3-dev libpng-dev zlib1g-dev libbz2-dev liblzma-dev libicu-dev cdbs qpdf texinfo libssh2-1-dev devscriptsgfortran " failed. Retrying, 2 of 3.
This error causes both r release and r devel to fail.
This error has already been resolved for Trusty (I think), so I hope this will be easy to resolve for Bionic as well.
I hope @jeroen and @jimhester know what to do