Alpaca build failure (OS X)

# Alpaca build does not produce a binary

andrew@iprozac:~$ mkdir -p build/bin
andrew@iprozac:~$ export GOPATH=~/build/
andrew@iprozac:~$ export GOBIN=~/build/bin
andrew@iprozac:~$ export PATH=$PATH:$GOBIN
andrew@iprozac:~$ go get -d github.com/pksunkara/alpaca
andrew@iprozac:~$ cd build/src/github.com/pksunkara/alpaca/
andrew@iprozac:~/build/src/github.com/pksunkara/alpaca$ git checkout v1
Branch v1 set up to track remote branch v1 from origin.
Switched to a new branch 'v1'
andrew@iprozac:~/build/src/github.com/pksunkara/alpaca$ make
go get -u github.com/GeertJohan/go.rice/rice github.com/robertkrimen/terst github.com/jessevdk/go-flags bitbucket.org/kardianos/osext bitbucket.org/pkg/inflect
rice --import-path github.com/pksunkara/alpaca/alpaca clean
rice --import-path github.com/pksunkara/alpaca/alpaca embed
andrew@iprozac:~/build/src/github.com/pksunkara/alpaca$ echo $?
0
andrew@iprozac:~/build/src/github.com/pksunkara/alpaca$ ls -lah $GOBIN
total 12704
drwxr-xr-x  3 andrew  staff   102B 29 Aug 10:07 .
drwxr-xr-x  5 andrew  staff   170B 29 Aug 10:07 ..
-rwxr-xr-x  1 andrew  staff   6.2M 29 Aug 10:07 rice
andrew@iprozac:~/build/src/github.com/pksunkara/alpaca$