message: Fix error message on stable
diff: @@ -126,6 +126,7 @@ error: failed to parse manifest at `[..]`
  Caused by:
  the cargo feature `public-dependency` requires a nightly version of Cargo, but this is the `stable` channel
  +See https://doc.rust-lang.org/book/appendix-07-nightly-rust.html for more information about Rust release channels.
  "
  )
  .run()
  