bat-go issues

[parfuar]

Hi,
I've been trying to install the "bat-go" project.

My environment is Ubuntu "Ubuntu 20.04 LTS"
GO -> go version go1.13.8 linux/amd64
And then I will -> "https://golangci-lint.run/welcome/install/#local-installation" (Local Installation) - Binaries

First Problem:
root@Ubuntu:/home/utilizador/Downloads# go get -u github.com/hexdigest/gowrap/cmd/gowrap
package golang.org/x/tools/internal/gcimporter: found packages gcimporter (bexport_test.go) and main (main.go) in /root/go/src/golang.org/x/tools/internal/gcimporter
package io/fs: unrecognized import path "io/fs" (import path does not begin with hostname)

Second problem:
root@Ubuntu:/home/utilizador/Downloads/bat-go# make
cd libs && go test -count 1 -v -p 1 --tags=integration ./... ./...
/root/go/pkg/mod/github.com/mattn/[email protected]/isatty_tcgets.go:7:8: found packages unix (affinity_linux.go) and main (mkasm.go) in /root/go/pkg/mod/golang.org/x/[email protected]/unix
/root/go/pkg/mod/github.com/getsentry/[email protected]/internal/ratelimit/category.go:6:2: found packages cases (cases.go) and main (gen.go) in /root/go/pkg/mod/golang.org/x/[email protected]/cases
/root/go/pkg/mod/github.com/getsentry/[email protected]/internal/ratelimit/category.go:7:2: found packages language (coverage.go) and main (gen.go) in /root/go/pkg/mod/golang.org/x/[email protected]/language
/root/go/pkg/mod/golang.org/x/[email protected]/secure/bidirule/bidirule.go:16:2: found packages bidi (bidi.go) and main (gen.go) in /root/go/pkg/mod/golang.org/x/[email protected]/unicode/bidi
/root/go/pkg/mod/golang.org/x/[email protected]/idna/idna10.0.0.go:28:2: found packages norm (composition.go) and main (maketables.go) in /root/go/pkg/mod/golang.org/x/[email protected]/unicode/norm
/root/go/pkg/mod/golang.org/x/[email protected]/http2/transport.go:19:2: malformed module path "io/fs": missing dot in first path element
make: *** [Makefile:181: test] Error 1

Can anyone help me install this?
Thanks