vagrant@vagrant-ubuntu-wily-64:/vagrant$ sudo ./scripts/build-rkt.sh

----------------------------------------------------------------
Initialized build system. For a common configuration please run:
----------------------------------------------------------------

./configure

checking for bash... /bin/bash
checking for git... git
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking for cat... cat
checking for cpio... cpio
checking for gzip... gzip
checking for md5sum... md5sum
checking for mktemp... mktemp
checking for sort... sort
checking for touch... touch
checking for unsquashfs... unsquashfs
checking for wget... wget
configure: WARNING: * kvm is an experimental stage1 implementation, some features are missing
configure: will build linux kernel and lkvm from source, make sure that all their build requirements are fulfilled
checking for patch... patch
checking for tar... tar
checking for xz... xz
configure: WARNING: * fly is an experimental stage1 implementation with almost no isolation and less features
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for acl/libacl.h... yes
checking for dlfcn.h... yes
checking for printf in -lc... yes
checking whether C library provides setns function... yes
checking for gpg... gpg
checking for fork in -lc... yes
checking for trousers/tss.h... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking for file... file
checking for go... no
configure: error: *** go not found

vagrant@vagrant-ubuntu-wily-64:/vagrant$ go version
go version go1.5.3 linux/amd64