// (replace, exclude).
func PackagesAndErrorsOutsideModule(ctx context.Context, opts PackageOpts, args []string) ([]*Package, error) {
	if !modload.ForceUseModules {
		panic("modload.ForceUseModules must be true")
	}
	if modload.RootMode != modload.NoRoot {
		panic("modload.RootMode must be NoRoot")
	}

	// Check that the arguments satisfy syntactic constraints.
	var version string
	var firstPath string

	"strconv"
	"strings"
	"sync"
	"time"

	"cmd/go/internal/base"
	"cmd/go/internal/cache"
	"cmd/go/internal/cfg"
	"cmd/go/internal/fsys"
	"cmd/go/internal/gover"
	"cmd/go/internal/load"
	"cmd/go/internal/modload"
	"cmd/go/internal/str"
	"cmd/go/internal/trace"
	"cmd/internal/buildid"
	"cmd/internal/quoted"
	"cmd/internal/sys"
)

const DefaultCFlags = "-O2 -g"

	"internal/cpu"
	"internal/goarch"
	"internal/goos"
	"internal/runtime/atomic"
	"internal/runtime/exithook"
	"internal/stringslite"
	"runtime/internal/sys"
	"unsafe"
)

// set using cmd/go/internal/modload.ModInfoProg
var modinfo string

// Goroutine scheduler
// The scheduler's job is to distribute ready-to-run goroutines over worker threads.
//
// The main concepts are:
// G - goroutine.