=> Bootstrap dependency digest>=20010302: found digest-20160304
=> Fetching SPTK-3.9.tar.gz
=> Total size: 1077702 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/sp-tk/SPTK-3.9.tar.gz: Authentication error
fetch: Unable to fetch expected file SPTK-3.9.tar.gz
SPTK-3.9.tar.gz                                          0  B    0  Bps
=> Fetching SPTKexamples-3.9.pdf
=> Total size: 2752695 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/sp-tk/SPTKexamples-3.9.pdf: Authentication error
fetch: Unable to fetch expected file SPTKexamples-3.9.pdf
SPTKexamples-3.9.pdf                                     0  B    0  Bps
=> Fetching SPTKref-3.9.pdf
=> Total size: 1044287 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/sp-tk/SPTKref-3.9.pdf: Authentication error
fetch: Unable to fetch expected file SPTKref-3.9.pdf
SPTKref-3.9.pdf                                          0  B    0  Bps
=> Checksum SHA1 OK for SPTK-3.9.tar.gz
=> Checksum RMD160 OK for SPTK-3.9.tar.gz
=> Checksum SHA512 OK for SPTK-3.9.tar.gz
=> Checksum SHA1 OK for SPTKexamples-3.9.pdf
=> Checksum RMD160 OK for SPTKexamples-3.9.pdf
=> Checksum SHA512 OK for SPTKexamples-3.9.pdf
=> Checksum SHA1 OK for SPTKref-3.9.pdf
=> Checksum RMD160 OK for SPTKref-3.9.pdf
=> Checksum SHA512 OK for SPTKref-3.9.pdf