# You Probably Shouldn't Use This
This is an empty library crate.
It is useful only for projects shipping both within and without mozilla-central,
as you'll have an optional dependency on an internal `firefox-on-glean` crate.
# See Also
* [bug 1765921](https://bugzilla.mozilla.org/show_bug.cgi?id=1765921#c4)
* Where we discuss this crate.
* [rust-lang/cargo#4544](https://github.com/rust-lang/cargo/issues/4544)
* The `cargo` bug from 2017 about why we have to do this.