0.8.0 build from source errors

[0pcom]

I noticed a new version with an available source archive; so I tried compiling it

go build is failing with the following:

go: downloading github.com/skycoin/skycoin v0.27.1
go: downloading github.com/jinzhu/copier v0.2.5
go: downloading github.com/go-gl/glfw/v3.3/glfw v0.0.0-20201108214237-06ea97f0c265
go: downloading github.com/go-gl/gl v0.0.0-20190320180904-bf2b1f2f34d7
go: downloading github.com/mjibson/go-dsp v0.0.0-20180508042940-11479a337f12
go: downloading github.com/skycoin/gltext v0.0.0-20200425002731-afdd8ff94e14
go: downloading golang.org/x/mobile v0.0.0-20210220033013-bdb1ca9a1e08
go: downloading github.com/satori/go.uuid v1.2.0
go: downloading github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
go: downloading golang.org/x/image v0.0.0-20210220032944-ac19c3e999fb
package github.com/skycoin/cx/cmd/cx
	imports github.com/skycoin/cx/cxfx
	imports github.com/skycoin/cx/cx/base: build constraints exclude all Go files in /home/user/go/src/github.com/skycoin/cx/cx/base