test: fixedbugs/issue15609.go and fixedbugs/issue29612.go failing on master #33912
Description
$ go version
go version devel +372b0eed17 Wed Aug 28 12:57:59 2019 +0000 linux/amd64
$ go env
GO111MODULE="on"
GOARCH="amd64"
GOBIN="/home/mvdan/go/bin"
GOCACHE="/home/mvdan/go/cache"
GOENV="/home/mvdan/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GONOPROXY="brank.as/*"
GONOSUMDB="brank.as/*"
GOOS="linux"
GOPATH="/home/mvdan/go"
GOPRIVATE="brank.as/*"
GOPROXY="https://proxy.golang.org"
GOROOT="/home/mvdan/tip"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/home/mvdan/tip/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/dev/null"
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-build921353500=/tmp/go-build -gno-record-gcc-switches"
$ cd test
$ go run run.go
# go run run.go -- fixedbugs/issue15609.go
exit status 1
go: cannot find main module; see 'go help modules'
FAIL fixedbugs/issue15609.go 0.043s
# go run run.go -- fixedbugs/issue29612.go
exit status 1
go: cannot find main module; see 'go help modules'
FAIL fixedbugs/issue29612.go 0.031s
/cc @bcmills @jayconrod