=> Bootstrap dependency digest>=20010302: found digest-20160304
=> Fetching gperftools-2.7.tar.gz
=> Total size: 1523562 bytes
=> Checksum SHA1 OK for gperftools-2.7.tar.gz
=> Checksum RMD160 OK for gperftools-2.7.tar.gz
=> Checksum SHA512 OK for gperftools-2.7.tar.gz