=> Bootstrap dependency digest>=20010302: found digest-20180917
=> Checksum SHA1 OK for unarj-2.65.tar.gz
=> Checksum RMD160 OK for unarj-2.65.tar.gz
=> Checksum SHA512 OK for unarj-2.65.tar.gz
mkdir: /tmp/pkgbuild/archivers/unarj: Permission denied
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/archivers/unarj