Don't just presume ErrorKind::Other is always "Out of space"

src/store/event_store.rs

@@ -98,7 +98,7 @@ impl EventStore {
                 Ok(offset) => return Ok(offset),
                 Err(e) => {
                     if e.kind() == std::io::ErrorKind::Other {
-                        // presume it was Out of Space
+                        if e.to_string() == "Out of space" {
                             // Determine the new size
                             let new_file_len = {
                                 let file_len = self.event_map_file_len.load(Ordering::Relaxed);
@@ -120,6 +120,9 @@ impl EventStore {
                         } else {
                             return Err(e.into());
                         }
+                    } else {
+                        return Err(e.into());
+                    }
                 }
             }
         }