=> Bootstrap dependency digest>=20010302: found digest-20190127 => Fetching ser-0.8.14_src.tar.gz => Total size: 1551881 bytes => Checksum SHA1 OK for ser-0.8.14_src.tar.gz => Checksum RMD160 OK for ser-0.8.14_src.tar.gz => Checksum SHA512 OK for ser-0.8.14_src.tar.gz