GOCACHE=off causes modules to exit the tests

[paroxp]

What version of Go are you using (go version)?

→ go version
go version go1.11beta3 linux/amd64

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

→ go env
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/paroxp/.cache/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/paroxp/golang"
GOPROXY=""
GORACE=""
GOROOT="/usr/local/go"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/mnt/d/Projects/qwerty/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build625123659=/tmp/go-build -gno-record-gcc-switches"

What did you do?

To be honest, not much. In attempt to turn off cache and running the tests Go throws an error.

• No longer using GOPATH, but custom project location
• Using the beta3 version
• Using go mod

What did you expect to see?

Running tests. This is the regression from the previous version and may break people's setup (CI for instance).

What did you see instead?

→ GOCACHE=off go test ./...
go: cannot use modules with build cache disabled

[paroxp]

The GOCACHE env variable will be phased out out in 1.12, and cannot be used with go modules enabled in 1.11. https://tip.golang.org/doc/go1.11#gocache
I presume you want to disable the test caching, in which case you can use go test -count=1 ...

- mikef from slack