Bin directory missing from Mac Nightly build tar.gz since version 5.3.0

The tar.gz files since 5.3.0 and higher do not contain a bin directory with the binaries for Mac (did not check the other OS files). The tar.gz is also much smaller than for example version 5.2.4 which does contain the bin directory (24 MB vs 41 MB)
Is this the result of a build failure? Or am I suppose to build the binaries myself starting from version 5.3.0?

We have re-published darwin binaries for Grafana v5.3.4. New releases starting from v5.4.0 should now also have proper darwin builds.