=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for R/base64enc_0.1-3.tar.gz
=> Checksum RMD160 OK for R/base64enc_0.1-3.tar.gz
=> Checksum SHA512 OK for R/base64enc_0.1-3.tar.gz
mkdir: /tmp/pkgbuild/converters/R-base64enc: Permission denied
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/converters/R-base64enc