Fix display - turns out Path::display is platform-independent

cargo/cargo_toml_variable_extractor/main.rs

@@ -14,7 +14,11 @@ use cargo_util_schemas::manifest::{
 fn main() {
     let args: Vec<_> = args_os().collect();
     let (out_path, manifest, workspace) = match &args[..] {
-        [_, out_path, manifest_path] => (out_path, parse_manifest(manifest_path), None),
+        [_, out_path, manifest_path] => (
+            out_path,
+            parse_manifest(manifest_path),
+            None,
+        ),
         [_, out_path, manifest_path, workspace_manifest_path] => (
             out_path,
             parse_manifest(manifest_path),
@@ -177,7 +181,7 @@ fn print_manifest_env_vars(
     );
 }
 
-fn parse_manifest<P: AsRef<Path>>(path: P) -> TomlManifest {
+fn parse_manifest<P: AsRef<Path>>(path: &P) -> TomlManifest {
     let path = path.as_ref();
     let content = read_to_string(path)
         .unwrap_or_else(|err| panic!("Failed to read {}: {}", path.display(), err));
@@ -223,7 +227,13 @@ fn print_inheritable_path(
     ) {
         (Some(InheritableString::Value(path)), _) => Some(path.to_owned()),
         (Some(InheritableString::Inherit(_)), Some((relpath, value_path))) => {
-            Some(format!("{}", relpath.join(value_path).display()))
+            let path = relpath.join(value_path);
+            let joined = path
+                .components()
+                .map(|c| c.as_os_str().to_string_lossy().into_owned())
+                .collect::<Vec<_>>()
+                .join(std::path::MAIN_SEPARATOR_STR);
+            Some(format!("{}", joined))
         }
         (Some(InheritableString::Inherit(_)), None) => {
             panic!("Can't inherit a {key} which was missing from the workspace")