golang.org/x/sys/windows: Can't compile windows app

What version of Go are you using (go version)?

$ go version
go version go1.10.8 windows/amd64

Does this issue reproduce with the latest release?

Yes, since 1.13.0

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
set GOARCH=amd64
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOOS=windows

What did you do?

What did you expect to see?

No errors and warnings. Backward compatibility exists

What did you see instead?

../../../go/src/golang.org/x/sys/windows/syscall_windows.go:1791:11: invalid operation: 1 << pos (shift count type int, must be unsigned integer)
../../../go/src/golang.org/x/sys/windows/syscall_windows.go:1795:23: invalid operation: masked >> start (shift count type int, must be unsigned integer)

[ianlancetaylor]

Sorry, Go 1.10 is no longer supported. You'll need to use at least Go 1.13. And you may need to set go 1.13 or later in your go.mod file.

ianlancetaylor But what happened with golang.org/x/sys?
A couple of months ago it worked

[seankhliao]

Backwards compatibility means old code will run with newer language versions. Here you're trying to run new code with older language versions. This isn't covered by any compatibility promises.

[ianlancetaylor]

@stranger-inthenight To put it another way, what happened is that somebody committed a change to x/sys/windows that uses a language feature that was added in Go 1.13. This is permitted as the current version of x/sys/windows is only expected to be used with currently supported versions of Go.

Got it! Thank you for the comments