=> Bootstrap dependency digest>=20010302: found digest-20160304 => Fetching ocurl-0.5.3.tgz => Total size: 87849 bytes Certificate verification failed for /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 34374371912:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed:/usr/src/crypto/openssl/ssl/s3_clnt.c:1269: fetch: http://downloads.sourceforge.net/sourceforge/ocurl/ocurl-0.5.3.tgz: Authentication error fetch: Unable to fetch expected file ocurl-0.5.3.tgz ocurl-0.5.3.tgz 0 B 0 Bps => Checksum SHA1 OK for ocurl-0.5.3.tgz => Checksum RMD160 OK for ocurl-0.5.3.tgz => Checksum SHA512 OK for ocurl-0.5.3.tgz