Interesting; looks like this is failing on go1.22

cc @AkihiroSuda @dmcgowan

=== RUN   TestDiffDirChangeWithOverlayfs
    diff_test.go:249: failed diff dir change: Unexpected number of changes:
        got(6):
        	modify	/dir1
        	delete	/dir1/d
        	modify	/dir1/f
        	modify	/dir2/d/f
        	modify	/dir3
        	delete	/dir3/.wh..opq
        expected(8):
        	modify	/dir1
        	delete	/dir1/d
        	modify	/dir1/f
        	modify	/dir2
        	modify	/dir2/d
        	modify	/dir2/d/f
        	modify	/dir3
        	delete	/dir3/.wh..opq
--- FAIL: TestDiffDirChangeWithOverlayfs (0.01s)

Originally posted by @thaJeztah in #242 (comment)

(Unlikely specific to Go 1.22)