Sep 20 02:31:57.480 ERRO this task or one of its parent failed!
Sep 20 02:31:57.480 ERRO unable to download google-dataflow1_b4-0.1.5+20150401
Sep 20 02:31:57.480 ERRO caused by: unable to unpack crate tarball
Sep 20 02:31:57.480 ERRO caused by: invalid gzip header