=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Fetching dm-is-nested_set-1.2.0.gem
=> Total size: 13824 bytes
=> Checksum SHA1 OK for dm-is-nested_set-1.2.0.gem
=> Checksum RMD160 OK for dm-is-nested_set-1.2.0.gem
=> Checksum SHA512 OK for dm-is-nested_set-1.2.0.gem