[Bug]: mountfs.go chown errors

[zshzebra]

Describe your bug or error

running: egg build -o kernel.sh on ubuntu in virtualbox (as to avoid issues with multiple go versions)

Go Version

1.16.15

Relevant log output

../../go/pkg/mod/github.com/icexin/eggos@v0.4.1/fs/mount/mountfs.go:262:30: cannot use m (type *MountableFs) as type afero.Fs in argument to lstatIfPossible:
	*MountableFs does not implement afero.Fs (missing Chown method)
../../go/pkg/mod/github.com/icexin/eggos@v0.4.1/fs/mount/mountfs.go:266:18: cannot use m (type *MountableFs) as type afero.Fs in argument to departWalk:
	*MountableFs does not implement afero.Fs (missing Chown method)

[icexin]

It seems you are using a higher version afero than eggos

[zshzebra]

How would I fix?

edit:

I just run the eggos installer, via go install ( maybe go get ), then used egg build.