=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching ffi-rzmq-2.0.7.gem
=> Total size: 51200 bytes
=> Checksum SHA1 OK for ffi-rzmq-2.0.7.gem
=> Checksum RMD160 OK for ffi-rzmq-2.0.7.gem
=> Checksum SHA512 OK for ffi-rzmq-2.0.7.gem