message: Remove `-Z future-incompat-report` from message displayed to user
  This was missed during stabilization
diff: @@ -439,7 +439,7 @@ https://doc.rust-lang.org/cargo/reference/overriding-dependencies.html#the-patch
  drop(bcx.config.shell().note(&suggestion_message));
  drop(bcx.config.shell().note(&format!(
  "this report can be shown with `cargo report \
  - future-incompatibilities -Z future-incompat-report --id {}`",
  + future-incompatibilities --id {}`",
  report_id
  )));
  } else if should_display_message {
  