=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching fast_yaml-1.0.15.tar.gz
=> Total size: 49812 bytes
=> Checksum SHA1 OK for fast_yaml-1.0.15.tar.gz
=> Checksum RMD160 OK for fast_yaml-1.0.15.tar.gz
=> Checksum SHA512 OK for fast_yaml-1.0.15.tar.gz