Ignore non-UTF-8 file names instead of panicking

datman/src/tree.rs

@@ -307,13 +307,11 @@ pub fn scan_with_progress_bar(
             let entry: DirEntry = entry?;
             let scanned = scan_with_progress_bar(&entry.path(), progress_bar, one_filesystem)?;
             if let Some(scanned) = scanned {
-                children.insert(
+                if let Ok(filename) = entry.file_name().into_string() {
-                    entry
+                    children.insert(filename, scanned);
-                        .file_name()
+                } else {
-                        .into_string()
+                    warn!("Non-UTF-8 filename; ignoring: {:?}", entry.file_name())
-                        .expect("OsString not String"),
+                }
-                    scanned,
-                );
             }
         }