fix: handle PathError gracefully in add_files_from_stdout

crates/turborepo-scm/src/git.rs

@@ -354,10 +354,17 @@ impl GitRepo {
         let stdout = String::from_utf8(stdout).unwrap();
         for line in stdout.lines() {
             let path = RelativeUnixPath::new(line).unwrap();
-            let anchored_to_turbo_root_file_path = self
-                .reanchor_path_from_git_root_to_turbo_root(turbo_root, path)
-                .unwrap();
-            files.insert(anchored_to_turbo_root_file_path);
+            match self.reanchor_path_from_git_root_to_turbo_root(turbo_root, path) {
+                Ok(anchored_to_turbo_root_file_path) => {
+                    files.insert(anchored_to_turbo_root_file_path);
+                }
+                Err(err) => {
+                    warn!(
+                        "Skipping file that could not be anchored to turbo root: {} ({})",
+                        line, err
+                    );
+                }
+            }
         }
     }
 
@@ -1312,4 +1319,33 @@ mod tests {
 
         assert_eq!(None, actual);
     }
+
+    #[test]
+    fn test_add_files_from_stdout_with_unancorable_path() -> Result<(), Error> {
+        let (repo_root, _repo) = setup_repository(None)?;
+        let git_root = AbsoluteSystemPathBuf::try_from(repo_root.path()).unwrap();
+
+        // Create a separate directory that is not a subdirectory of git_root
+        let turbo_root = tempfile::tempdir()?;
+        let turbo_root_path = AbsoluteSystemPathBuf::try_from(turbo_root.path()).unwrap();
+
+        // Create a GitRepo instance directly
+        let git_repo = GitRepo {
+            root: git_root.clone(),
+            bin: GitRepo::find_bin()?,
+        };
+
+        // Create a HashSet to collect files
+        let mut files = HashSet::new();
+
+        // Create stdout with a path that cannot be anchored
+        let problematic_path = "some/path/with/special/characters/\\321\\216.spec.ts";
+        let stdout = problematic_path.as_bytes().to_vec();
+
+        git_repo.add_files_from_stdout(&mut files, &turbo_root_path, stdout);
+
+        assert!(files.is_empty());
+
+        Ok(())
+    }
 }