=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
===> Installing for R-nimble-0.9.0
=> Generating pre-install file lists
=> Creating installation directories
ERROR: dependency 'R6' is not available for package 'nimble'
* removing '/data/scratch/math/R-nimble/work/.destdir/usr/pkg/lib/R/library/nimble'
*** Error code 1

Stop.
make[1]: stopped in /data/pkgsrc/math/R-nimble
*** Error code 1

Stop.
make: stopped in /data/pkgsrc/math/R-nimble