=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching go-sys-0.0.20190308-584f3b12f4.tar.gz
=> Total size: 1256914 bytes
ftp: Can't LOOKUP `github.com:https': hostname nor servname provided, or not known
ftp: Can't connect to `github.com:https'
fetch: Unable to fetch expected file go-sys-0.0.20190308-584f3b12f4.tar.gz
ftp: Can't LOOKUP `cdn.NetBSD.org:http': hostname nor servname provided, or not known
ftp: Can't connect to `cdn.NetBSD.org:http'
fetch: Unable to fetch expected file go-sys-0.0.20190308-584f3b12f4.tar.gz
ftp: Can't LOOKUP `ftp6.NetBSD.org:http': hostname nor servname provided, or not known
ftp: Can't connect to `ftp6.NetBSD.org:http'
fetch: Unable to fetch expected file go-sys-0.0.20190308-584f3b12f4.tar.gz
ftp: Can't LOOKUP `ftp.fr.NetBSD.org:http': hostname nor servname provided, or not known
ftp: Can't connect to `ftp.fr.NetBSD.org:http'
fetch: Unable to fetch expected file go-sys-0.0.20190308-584f3b12f4.tar.gz
ftp: Can't LOOKUP `ftp.NetBSD.org:http': hostname nor servname provided, or not known
ftp: Can't connect to `ftp.NetBSD.org:http'
fetch: Unable to fetch expected file go-sys-0.0.20190308-584f3b12f4.tar.gz
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/devel/go-sys