=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching ffi-1.12.2.gem
=> Total size: 897024 bytes
=> Checksum SHA1 OK for ffi-1.12.2.gem
=> Checksum RMD160 OK for ffi-1.12.2.gem
=> Checksum SHA512 OK for ffi-1.12.2.gem