=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching PC6001VX_3.7.1_src.tar.gz
=> Total size: 3766489 bytes
ftp: Error retrieving file `403 Forbidden'
fetch: Unable to fetch expected file PC6001VX_3.7.1_src.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file PC6001VX_3.7.1_src.tar.gz
ftp: Can't connect to `2001:470:a085:999::21:80': No route to host
ftp: Can't connect to `ftp6.NetBSD.org:http'
fetch: Unable to fetch expected file PC6001VX_3.7.1_src.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file PC6001VX_3.7.1_src.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file PC6001VX_3.7.1_src.tar.gz
*** Error code 1

Stop.
make: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/emulators/PC6001VX