tracked filles* can be edited by the cargo command; edits to
other files, and creation of new files, will be ignored.
+ When this option is repeated (**`-EE`**), the cargo subcommand can
+ create new files including dotfiles (but nothing in the toplevel
+ `target` and nothing called `.git`). (This also enables
+ `--preclean=src` by default.)
+
If you are running out of tree builds for privsep reasons, you
should use git to review the edits made by the cargo command and
either stage and commit them, or reject them.