How to deal with "import cycle not allowed" while trying to install gonum?

I'd like to use the gonum libraries for go in order to experiment with some neural network stuff but I cannot go past the install process...

I'm running the command found on the official gonum website :

go get -u -t gonum.org/v1/gonum/...

But it gives me :

import cycle not allowed
package gonum.org/v1/gonum
    imports runtime
    imports internal/bytealg
    imports internal/cpu
    imports runtime

Do you know what could be a reason for such a problem?

In case you need my go env in order to help me out, here it is :

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/me/go"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GO15VENDOREXPERIMENT="1"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0"
CXX="g++"
CGO_ENABLED="1"

I'm running go 1.6.2.

Solution

As Adrian told in the comments, the issue was that the go version I was running was too old for gonum to install correctly. This was due to the fact that the go-golang package installed on my computer via apt-get was giving me the 1.6 version of go. By removing the package and making sure I had a recent go release installed on my computer I managed to install gonum.