message: doc: [profile.*] sections are for root crate only
  ie.
  warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
diff: @@ -491,7 +491,8 @@ properties:
  * Whenever any crate in the workspace is compiled, output is placed in the
  *workspace root*. i.e. next to the *root crate*'s `Cargo.toml`.
  * The lock file for all crates in the workspace resides in the *workspace root*.
  -* The `[patch]` and `[replace]` sections in `Cargo.toml` are only recognized
  +* The `[patch]`, `[replace]` and `[profile.*]` sections in `Cargo.toml`
  + are only recognized
  in the *root crate*'s manifest, and ignored in member crates' manifests.
  [RFC 1525]: https://github.com/rust-lang/rfcs/blob/master/text/1525-cargo-workspace.md
  