},
		ConnectStart: func(network, addr string) {
			atomic.StoreInt64(&dialStart, time.Now().UnixNano())
		},
		ConnectDone: func(network, addr string, err error) {
			if err == nil {
				atomic.StoreInt64(&dialEnd, time.Now().UnixNano())
			}
		},
	}

	return req.WithContext(httptrace.WithClientTrace(req.Context(), trace)), func() {

pkg io/fs, var ErrClosed error
pkg io/fs, var ErrExist error
pkg io/fs, var ErrInvalid error
pkg io/fs, var ErrNotExist error
pkg io/fs, var ErrPermission error
pkg io/fs, var SkipDir error
pkg log, func Default() *Logger
pkg net, var ErrClosed error
pkg net/http, func FS(fs.FS) FileSystem
pkg net/http, type Transport struct, GetProxyConnectHeader func(context.Context, *url.URL, string) (Header, error)

pkg net/http, var ErrServerClosed error
pkg net/http, var NoBody noBody
pkg net/mail, func ParseDate(string) (time.Time, error)
pkg net, method (*Buffers) Read([]uint8) (int, error)
pkg net, method (*Buffers) WriteTo(io.Writer) (int64, error)
pkg net, method (*Resolver) LookupAddr(context.Context, string) ([]string, error)
pkg net, method (*Resolver) LookupCNAME(context.Context, string) (string, error)

pkg debug/macho, func NewFatFile(io.ReaderAt) (*FatFile, error)
pkg debug/macho, func OpenFat(string) (*FatFile, error)
pkg debug/macho, method (*FatFile) Close() error
pkg debug/macho, method (FatArch) Close() error
pkg debug/macho, method (FatArch) DWARF() (*dwarf.Data, error)
pkg debug/macho, method (FatArch) ImportedLibraries() ([]string, error)
pkg debug/macho, method (FatArch) ImportedSymbols() ([]string, error)

	f     *File
	desr  io.Reader // if non-nil, where to read the data descriptor
	err   error     // sticky error
}

func (r *checksumReader) Stat() (fs.FileInfo, error) {
	return headerFileInfo{&r.f.FileHeader}, nil
}

func (r *checksumReader) Read(b []byte) (n int, err error) {
	if r.err != nil {
		return 0, r.err
	}
	n, err = r.rc.Read(b)
	r.hash.Write(b[:n])
	r.nread += uint64(n)

func (b *Writer) ReadFrom(r io.Reader) (n int64, err error) {
	if b.err != nil {
		return 0, b.err
	}
	readerFrom, readerFromOK := b.wr.(io.ReaderFrom)
	var m int
	for {
		if b.Available() == 0 {
			if err1 := b.Flush(); err1 != nil {
				return n, err1
			}
		}
		if readerFromOK && b.Buffered() == 0 {
			nn, err := readerFrom.ReadFrom(r)
			b.err = err
			n += nn
			return n, err
		}

pkg net/http, const StatusTooEarly ideal-int
pkg net/http, method (*Client) CloseIdleConnections()
pkg os, const ModeType = 2401763328
pkg os, func UserHomeDir() (string, error)
pkg os, method (*File) SyscallConn() (syscall.RawConn, error)
pkg os, method (*ProcessState) ExitCode() int
pkg os/exec, method (ExitError) ExitCode() int
pkg reflect, method (*MapIter) Key() Value
pkg reflect, method (*MapIter) Next() bool

	type subS3Select S3Select
	parsedS3Select := subS3Select{}
	if err := d.DecodeElement(&parsedS3Select, &start); err != nil {
		if _, ok := err.(*s3Error); ok {
			return err
		}

		return errMalformedXML(err)
	}
	if err := parsedS3Select.ScanRange.Validate(); err != nil {
		return errInvalidScanRangeParameter(err)
	}
	parsedS3Select.ExpressionType = strings.ToLower(parsedS3Select.ExpressionType)

	}

	if nDisks < len(di)/2 || nDisks <= 0 {
		var errs []error
		for index, disk := range di {
			switch {
			case disk == nil:
				errs = append(errs, fmt.Errorf("disk[%d]: offline", index))
			case disk.Error != "":
				errs = append(errs, fmt.Errorf("disk %s: %s", disk.Endpoint, disk.Error))
			case disk.Total == 0:
				errs = append(errs, fmt.Errorf("disk %s: total is zero", disk.Endpoint))
			}
		}

	if err != nil {
		return err
	}
	defer stat.Close()
	// Serialize check and copying.
	if err := syscall.Flock(int(stat.Fd()), syscall.LOCK_EX); err != nil {
		return err
	}
	s, err := io.ReadAll(stat)
	if err != nil {
		return err
	}
	if string(s) == goVersion {
		return nil
	}

	goroot, err := findGoroot()
	if err != nil {
		return err