os/user: TestGroupIds on macOS fails #21067
Description
What version of Go are you using (go version)?
go version go1.8.3 darwin/amd64
What operating system and processor architecture are you using (go env)?
$ uname -a
Darwin USD25MC10EF8JC 16.4.0 Darwin Kernel Version 16.4.0: Thu Dec 22 22:53:21 PST 2016; root:xnu-3789.41.3~3/RELEASE_X86_64 x86_64
$ go env
GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/csnelson/go"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/74/y_rffr315mn3j9d5v0q_8w9hwlsb1s/T/go-build117999026=/tmp/go-build -gno-record-gcc-switches -fno-common"
CXX="clang++"
CGO_ENABLED="1"
PKG_CONFIG="pkg-config"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
What did you do?
Building the latest Go Compiler source (from source control):
$ ./all.bash
What did you expect to see?
Success.
What did you see instead?
ok os/signal 4.480s
--- FAIL: TestGroupIds (0.00s)
user_test.go:143: &{Uid:960277561 Gid:1367992244 Username:csnelson Name:Nelson HomeDir:/Users/csnelson}.GroupIds(): user: list groups for csnelson failed (changed groups?)
FAIL
FAIL os/user 0.034s