Some cleanup.

Author: ehuss

src/cargo/util/command_prelude.rs

@@ -485,7 +485,6 @@ pub trait ArgMatchesExt {
         if build_config.future_incompat_report {
             config
                 .cli_unstable()
-                // TODO: Tracking issue
                 .fail_if_stable_opt("--future-incompat-report", 9241)?;
 
             if !config.cli_unstable().future_incompat_report {

src/doc/src/reference/unstable.md

@@ -1205,7 +1205,7 @@ lowest precedence.
 Relative `path` dependencies in such a `[patch]` section are resolved
 relative to the configuration file they appear in.
 
-## `cargo config`
+### `cargo config`
 
 * Original Issue: [#2362](https://github.com/rust-lang/cargo/issues/2362)
 * Tracking Issue: [#9301](https://github.com/rust-lang/cargo/issues/9301)