=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Skipping vulnerability checks.
WARNING: No /usr/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Installing for R-sass-0.4.0
=> Generating pre-install file lists
=> Creating installation directories
ERROR: dependency 'R6' is not available for package 'sass'
* removing '/tmp/www/R-sass/work/.destdir/usr/pkg/lib/R/library/sass'
*** Error code 1

Stop.
make[1]: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/www/R-sass
*** Error code 1

Stop.
make: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/www/R-sass