=> Bootstrap dependency digest>=20211023: found digest-20220214
=> Fetching icinga2-2.16.6.tar.gz
=> Total size: 9601293 bytes
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file icinga2-2.16.6.tar.gz
FFFFFFFFFFFFFFFF:error:0A000086:SSL routines:tls_post_process_server_certificate:certificate verify failed:/home/netbsd/11/src/crypto/external/apache2/openssl/dist/ssl/statem/statem_clnt.c:2124:
ftp: Can't connect to `github.com:https'
fetch: Unable to fetch expected file icinga2-2.16.6.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file icinga2-2.16.6.tar.gz
*** Error code 1

Stop.
make: stopped making "checksum" in /usr/pkgsrc/net/icinga2