var os.ErrDeadlineExceeded

12 uses

	os (current package)
		error.go#L27: 	ErrDeadlineExceeded = errDeadlineExceeded() // "i/o timeout"

	golang.org/x/net/http2
		http2.go#L333: 		if n == len(p) || nn == 0 || !errors.Is(err, os.ErrDeadlineExceeded) {
		server.go#L1850: 		st.body.CloseWithError(fmt.Errorf("%w", os.ErrDeadlineExceeded))
		server.go#L1860: 		Cause:    os.ErrDeadlineExceeded,

	google.golang.org/grpc
		clientconn.go#L1587: 	case errors.Is(err, syscall.ETIMEDOUT), errors.Is(err, context.DeadlineExceeded), errors.Is(err, os.ErrDeadlineExceeded):

	net
		pipe.go#L156: 		return 0, os.ErrDeadlineExceeded
		pipe.go#L169: 		return 0, os.ErrDeadlineExceeded
		pipe.go#L188: 		return 0, os.ErrDeadlineExceeded
		pipe.go#L204: 			return n, os.ErrDeadlineExceeded

	net/http
		h2_bundle.go#L3777: 		if n == len(p) || nn == 0 || !errors.Is(err, os.ErrDeadlineExceeded) {
		h2_bundle.go#L5982: 		st.body.CloseWithError(fmt.Errorf("%w", os.ErrDeadlineExceeded))
		h2_bundle.go#L5992: 		Cause:    os.ErrDeadlineExceeded,

The pages are generated with Golds v0.8.4. (GOOS=linux GOARCH=amd64)