$ sudo prt-get -is depinst libsoup
prt-get: installing /usr/ports/opt/krb5
=======> Downloading 'https://web.mit.edu/kerberos/dist/krb5/1.16/krb5-1.16.tar.gz'.
=======> Partial download found, trying to resume
--2018-07-12 03:35:32--  https://web.mit.edu/kerberos/dist/krb5/1.16/krb5-1.16.tar.gz
Resolving web.mit.edu... 2.17.228.35, 2a02:26f0:60:28f::255e, 2a02:26f0:60:280::255e
Connecting to web.mit.edu|2.17.228.35|:443... connected.
HTTP request sent, awaiting response... 401 Unauthorized

Username/Password Authentication Failed.
=======> Partial download failed, restarting
--2018-07-12 03:35:33--  https://web.mit.edu/kerberos/dist/krb5/1.16/krb5-1.16.tar.gz
Resolving web.mit.edu... 2.17.228.35, 2a02:26f0:60:28f::255e, 2a02:26f0:60:280::255e
Connecting to web.mit.edu|2.17.228.35|:443... connected.
HTTP request sent, awaiting response... 401 Unauthorized

Username/Password Authentication Failed.
=======> ERROR: Downloading 'https://web.mit.edu/kerberos/dist/krb5/1.16/krb5-1.16.tar.gz' failed.
prt-get: error while install

-- Packages where install failed
krb5