=> Bootstrap dependency digest>=20010302: found digest-20160304 => Fetching felt-3.05.ps.gz => Total size: 626985 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/felt/felt-3.05.ps.gz: Authentication error fetch: Unable to fetch expected file felt-3.05.ps.gz felt-3.05.ps.gz 0 B 0 Bps => Fetching felt-3.05.src.tar.gz => Total size: 956901 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/felt/felt-3.05.src.tar.gz: Authentication error fetch: Unable to fetch expected file felt-3.05.src.tar.gz felt-3.05.src.tar.gz 0 B 0 Bps => Checksum SHA1 OK for felt-3.05.src.tar.gz => Checksum RMD160 OK for felt-3.05.src.tar.gz => Checksum SHA512 OK for felt-3.05.src.tar.gz => Checksum SHA1 OK for felt-3.05.ps.gz => Checksum RMD160 OK for felt-3.05.ps.gz => Checksum SHA512 OK for felt-3.05.ps.gz