message: Link to tracking issues in unstable features documentation
diff: @@ -66,6 +66,7 @@ publish = ["my-registry"]
  ### rename-dependency
  * Original Issue: [#1311](https://github.com/rust-lang/cargo/issues/1311)
  * PR: [#4953](https://github.com/rust-lang/cargo/pull/4953)
  +* Tracking Issue: [#5653](https://github.com/rust-lang/cargo/issues/5653)
  The rename-dependency feature allows you to import a dependency
  with a different name from the source. This can be useful in a few scenarios:
  @@ -102,6 +103,7 @@ extern crate baz; // git repository
  ### publish-lockfile
  * Original Issue: [#2263](https://github.com/rust-lang/cargo/issues/2263)
  * PR: [#5093](https://github.com/rust-lang/cargo/pull/5093)
  +* Tracking Issue: [#5654](https://github.com/rust-lang/cargo/issues/5654)
  When creating a `.crate` file for distribution, Cargo has historically
  not included the `Cargo.lock` file. This can cause problems with
  @@ -121,6 +123,7 @@ publish-lockfile = true
  ### Offline Mode
  * Original Issue: [#4686](https://github.com/rust-lang/cargo/issues/4686)
  +* Tracking Issue: [#5655](https://github.com/rust-lang/cargo/issues/5655)
  The `-Z offline` flag prevents Cargo from attempting to access the network for
  any reason. Typically Cargo will stop with an error if it wants to access the
  @@ -150,6 +153,7 @@ generated if dev-dependencies are skipped.
  ### minimal-versions
  * Original Issue: [#4100](https://github.com/rust-lang/cargo/issues/4100)
  +* Tracking Issue: [#5657](https://github.com/rust-lang/cargo/issues/5657)
  When a `Cargo.lock` file is generated, the `-Z minimal-versions` flag will
  resolve the dependencies to the minimum semver version that will satisfy the
  @@ -251,6 +255,7 @@ cargo +nightly build -Z config-profile
  ### Namespaced features
  * Original issue: [#1286](https://github.com/rust-lang/cargo/issues/1286)
  +* Tracking Issue: [rust-lang/cargo#5565](https://github.com/rust-lang/cargo/issues/5565)
  Currently, it is not possible to have a feature and a dependency with the same
  name in the manifest. If you set `namespaced-features` to `true`, the namespaces
  