"go get" installation fails: invalid character U+007E

[birgersp]

Describe the bug Trying to run go get github.com/jesseduffield/lazydocker, but it fails with these error messages:

# github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:13:2: invalid character U+007E '~'
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:13:7: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:20:2: invalid character U+007E '~'
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:20:8: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:27:9: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:34:2: invalid character U+007E '~'
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:34:11: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:41:2: invalid character U+007E '~'
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:41:13: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:49:10: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:49:10: too many errors

To Reproduce Steps to reproduce the behavior:

1. Use golang version 1.13
2. Run go get github.com/jesseduffield/lazydocker
3. See error

Expected behaviour The installation shouldn't fail.

Screenshots Terminal output

~                                                                                                                                                                                          4s
❯ sudo apt install golang
Reading package lists... Done
Building dependency tree       
Reading state information... Done
golang is already the newest version (2:1.13~1ubuntu2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

~                                                                                                                                                                                            
❯ go get github.com/jesseduffield/lazydocker
# github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:13:2: invalid character U+007E '~'
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:13:7: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:20:2: invalid character U+007E '~'
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:20:8: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:27:9: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:34:2: invalid character U+007E '~'
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:34:11: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:41:2: invalid character U+007E '~'
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:41:13: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:49:10: syntax error: unexpected |, expecting semicolon or newline or }
go/src/github.com/jesseduffield/lazydocker/vendor/golang.org/x/exp/constraints/constraints.go:49:10: too many errors

Desktop (please complete the following information):

• OS: Linux Mint 20.3 (Una), based on Ubuntu 20.4 LTS
• Lazydocker Version: Latest? Whatever version I get when trying to install with Go.

Additional context Have installed lazydocker this way on 3-4 computers with the same os (and I assume same Go version) without this issue.

I love lazydocker.

[jesseduffield]

@birgersp I suspect this is because your Go version doesn't have support for generics (introduced in go 1.18). The constraints package is specific to generics

[birgersp]

That's probably it, then. I will try to pinpoint the error and update this issue