go list -e -f '{{with .Error}}{{.}}{{end}}' -deps driver.go
stdout '^driver.go:3:8: "./mypkg" is relative, but relative import paths are not supported in module mode$'
! stderr .


# In GOPATH mode, they're still allowed (but only outside of GOPATH/src).
env GO111MODULE=off

[!short] go run driver.go

go list -deps driver.go


-- $WORK/go.mod --
module example

go 1.17
-- $WORK/driver.go --
package main

# GOPATH: Set up
env GO111MODULE=off

# GOPATH: Fetch with insecure, should error
! go get -insecure test
stderr 'go: -insecure flag is no longer supported; use GOINSECURE instead'

# Modules: Set up
env GO111MODULE=on

# Modules: Fetch with insecure, should error
! go get -insecure test

	// Override defaults computed in go/build with defaults
	// from go environment configuration file, if known.
	ctxt.GOPATH, GOPATHChanged = EnvOrAndChanged("GOPATH", gopath(ctxt))
	ctxt.GOOS = Goos
	ctxt.GOARCH = Goarch

	// Clear the GOEXPERIMENT-based tool tags, which we will recompute later.
	var save []string
	for _, tag := range ctxt.ToolTags {
		if !strings.HasPrefix(tag, "goexperiment.") {

env GO111MODULE=off

! go build selfimport
stderr -count=1 'import cycle not allowed'

# 'go list' shouldn't hang forever.
go list -e -json selfimport

-- $GOPATH/src/selfimport/selfimport.go --
package selfimport

env GO111MODULE=off

# look for short, relative file:line in error message
! go run ../../gopath/x/y/z/err.go
stderr ^..[\\/]x[\\/]y[\\/]z[\\/]err.go:

-- ../x/y/z/err.go --

		// identity function for packages outside of the standard library.
		//
		// Part of the purpose of the vendor directory is to allow the packages in
		// the module to continue to build in GOPATH mode, and GOPATH-mode users
		// won't know about replacement aliasing. How important is it to maintain
		// compatibility?
		fmt.Fprintf(os.Stderr, "warning: %s imported as both %s and %s; making two copies.\n", realPath, realPath, pkg)

[!short] ! stderr .
[!short] cmp go.mod go.mod.orig

# Neither 'go list' nor 'go build' should download go.mod from the version
# that would list retractions.
exists $GOPATH/pkg/mod/cache/download/example.com/retract/@v/v1.0.0-bad.mod
! exists $GOPATH/pkg/mod/cache/download/example.com/retract/@v/v1.1.0.mod

# Importing a package from a module with a retracted latest version will
# select the latest non-retracted version.

# Issue 65406. The testdata directory in GOROOT/src
# shouldn't be treated as a standard package.

go list -f '{{.ImportPath}} {{.Dir}}' testdata
! stderr 'found package testdata in multiple modules'
stdout 'testdata '$WORK${/}'gopath'${/}'src'

-- go.mod --
module testdata
-- p.go --

stdout '^rsc.io/quote/v3 v3.0.0 '$GOPATH'[/\\]pkg[/\\]mod[/\\]not-rsc.io[/\\]quote@v0.1.0-nomod '$GOPATH'[/\\]pkg[/\\]mod[/\\]cache[/\\]download[/\\]not-rsc.io[/\\]quote[/\\]@v[/\\]v0.1.0-nomod.mod => not-rsc.io/quote v0.1.0-nomod '$GOPATH'[/\\]pkg[/\\]mod[/\\]not-rsc.io[/\\]quote@v0.1.0-nomod '$GOPATH'[/\\]pkg[/\\]mod[/\\]cache[/\\]download[/\\]not-rsc.io[/\\]quote[/\\]@v[/\\]v0.1.0-nomod.mod$'

export ARTIFACTS=${ARTIFACTS:-"${WORKSPACE}/artifacts"}
# Produce a JUnit-style XML test report
export KUBE_JUNIT_REPORT_DIR="${ARTIFACTS}"

export LOG_LEVEL=4

cd "${GOPATH}/src/k8s.io/kubernetes"
source "${PWD}/hack/lib/init.sh"
kube::etcd::install
export PATH=${GOPATH}/bin:${PWD}/third_party/etcd:/usr/local/go/bin:${PATH}

make update

if [[ -d "${ARTIFACTS:-}" ]]; then