Fixed crate_universe clippy defects

Author: UebelAndre

crate_universe/src/context/crate_context.rs

@@ -564,9 +564,9 @@ impl CrateContext {
 
                         // Locate the crate's root source file relative to the package root normalized for unix
                         let crate_root =
-                            pathdiff::diff_paths(target.src_path.to_string(), package_root).map(
+                            pathdiff::diff_paths(&target.src_path, package_root).map(
                                 // Normalize the path so that it always renders the same regardless of platform
-                                |root| root.to_string_lossy().replace("\\", "/"),
+                                |root| root.to_string_lossy().replace('\\', "/"),
                             );
 
                         // Conditionally check to see if the dependencies is a build-script target

crate_universe/src/splicing/splicer.rs

@@ -96,7 +96,7 @@ impl<'a> SplicerKind<'a> {
                     !manifests.keys().any(|path| {
                         let path_str = path.to_string_lossy().to_string();
                         // Account for windows paths.
-                        let path_str = path_str.replace("\\", "/");
+                        let path_str = path_str.replace('\\', "/");
                         // Workspace members are represented as directories.
                         path_str.trim_end_matches("/Cargo.toml").ends_with(member)
                     })
@@ -1015,7 +1015,7 @@ mod test {
         // On windows, make sure we normalize the path to match what Cargo would
         // otherwise use to populate metadata.
         if cfg!(target_os = "windows") {
-            workspace_root = format!("/{}", workspace_root.replace("\\", "/"))
+            workspace_root = format!("/{}", workspace_root.replace('\\', "/"))
         };
 
         if is_root {