diff --git a/src/runtime_old/logging.rs b/src/runtime_old/logging.rs
new file mode 100644
index 0000000000000000000000000000000000000000..7a97cb4fdc5ea40ca161798a889e2afb24d3c037
--- /dev/null
+++ b/src/runtime_old/logging.rs
@@ -0,0 +1,56 @@
+use super::*;
+
+// Used in the loggers' format string
+fn secs_since_unix_epoch() -> f64 {
+    std::time::SystemTime::now()
+        .duration_since(std::time::UNIX_EPOCH)
+        .map(|dur| dur.as_secs_f64())
+        .unwrap_or(0.)
+}
+impl FileLogger {
+    pub fn new(connector_id: ConnectorId, file: std::fs::File) -> Self {
+        Self(connector_id, file)
+    }
+}
+impl VecLogger {
+    pub fn new(connector_id: ConnectorId) -> Self {
+        Self(connector_id, Default::default())
+    }
+}
+/////////////////
+impl Logger for DummyLogger {
+    fn line_writer(&mut self) -> Option<&mut dyn std::io::Write> {
+        None
+    }
+}
+
+impl Logger for VecLogger {
+    fn line_writer(&mut self) -> Option<&mut dyn std::io::Write> {
+        let _ = write!(&mut self.1, "CID({}) at {:.6} ", self.0, secs_since_unix_epoch());
+        Some(self)
+    }
+}
+impl Logger for FileLogger {
+    fn line_writer(&mut self) -> Option<&mut dyn std::io::Write> {
+        let _ = write!(&mut self.1, "CID({}) at {:.6} ", self.0, secs_since_unix_epoch());
+        Some(&mut self.1)
+    }
+}
+///////////////////
+impl Drop for VecLogger {
+    fn drop(&mut self) {
+        let stdout = std::io::stderr();
+        let mut lock = stdout.lock();
+        writeln!(lock, "--- DROP LOG DUMP ---").unwrap();
+        let _ = std::io::Write::write(&mut lock, self.1.as_slice());
+    }
+}
+impl std::io::Write for VecLogger {
+    fn flush(&mut self) -> Result<(), std::io::Error> {
+        Ok(())
+    }
+    fn write(&mut self, data: &[u8]) -> Result<usize, std::io::Error> {
+        self.1.extend_from_slice(data);
+        Ok(data.len())
+    }
+}