=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching flatbuffers-1.9.0.tar.gz
=> Total size: 681752 bytes
=> Checksum SHA1 OK for flatbuffers-1.9.0.tar.gz
=> Checksum RMD160 OK for flatbuffers-1.9.0.tar.gz
=> Checksum SHA512 OK for flatbuffers-1.9.0.tar.gz