fix(add): Ensure users know a feature is being created

Inspired by rust-lang#13430 and rust-lang#13411

src/cargo/ops/cargo_add/mod.rs

@@ -208,6 +208,10 @@ pub fn add(workspace: &Workspace<'_>, options: &AddOptions<'_>) -> CargoResult<(
                     let new_feature: toml_edit::Value =
                         [format!("dep:{dep_name}")].iter().collect();
                     table[dep_key] = toml_edit::value(new_feature);
+                    options
+                        .config
+                        .shell()
+                        .status("Adding", format!("feature `{dep_key}`"))?;
                 }
             }
         }

tests/testsuite/cargo_add/change_rename_target/stderr.log

@@ -1,2 +1,3 @@
     Updating `dummy-registry` index
       Adding my-package2 v99999.0.0 to optional dependencies.
+      Adding feature `some-package`

tests/testsuite/cargo_add/detect_workspace_inherit_optional/stderr.log

@@ -1 +1,2 @@
       Adding foo (workspace) to optional dependencies.
+      Adding feature `foo`

tests/testsuite/cargo_add/optional/stderr.log

@@ -1,2 +1,3 @@
     Updating `dummy-registry` index
       Adding my-package v0.1.0 to optional dependencies.
+      Adding feature `my-package`

tests/testsuite/cargo_add/overwrite_git_with_path/stderr.log

@@ -1 +1,2 @@
       Adding cargo-list-test-fixture-dependency (local) to optional dependencies.
+      Adding feature `cargo-list-test-fixture-dependency`

tests/testsuite/cargo_add/overwrite_inherit_optional_noop/stderr.log

@@ -1 +1,2 @@
       Adding foo (workspace) to optional dependencies.
+      Adding feature `foo`

tests/testsuite/cargo_add/overwrite_name_noop/stderr.log

@@ -2,3 +2,4 @@
              Features:
              + mouth
              + nose
+      Adding feature `your-face`

tests/testsuite/cargo_add/overwrite_no_optional_with_optional/stderr.log

@@ -1,2 +1,3 @@
     Updating `dummy-registry` index
       Adding my-package v0.1.0 to optional dependencies.
+      Adding feature `my-package`

tests/testsuite/cargo_add/overwrite_optional/stderr.log

@@ -1,2 +1,3 @@
     Updating `dummy-registry` index
       Adding my-package v0.1.0 to optional dependencies.
+      Adding feature `my-package`

tests/testsuite/cargo_add/overwrite_path_noop/stderr.log

@@ -2,3 +2,4 @@
              Features:
              + mouth
              + nose
+      Adding feature `your-face`

tests/testsuite/cargo_add/overwrite_path_with_version/stderr.log

@@ -1,2 +1,3 @@
     Updating `dummy-registry` index
       Adding cargo-list-test-fixture-dependency v20.0 to optional dependencies.
+      Adding feature `cargo-list-test-fixture-dependency`

tests/testsuite/cargo_add/overwrite_rename_with_rename_noop/stderr.log

@@ -1,2 +1,3 @@
     Updating `dummy-registry` index
       Adding versioned-package v0.1.1 to optional dependencies.
+      Adding feature `a1`

tests/testsuite/cargo_add/overwrite_version_with_git/stderr.log

@@ -1,3 +1,4 @@
     Updating git repository `[ROOTURL]/versioned-package`
       Adding versioned-package (git) to optional dependencies.
+      Adding feature `versioned-package`
     Updating git repository `[ROOTURL]/versioned-package`

tests/testsuite/cargo_add/overwrite_version_with_path/stderr.log

@@ -1 +1,2 @@
       Adding cargo-list-test-fixture-dependency (local) to optional dependencies.
+      Adding feature `cargo-list-test-fixture-dependency`