Add scan endpoints

err/src/lib.rs

@@ -10,6 +10,7 @@ use std::net::AddrParseError;
 use std::num::{ParseFloatError, ParseIntError};
 use std::string::FromUtf8Error;
 use tokio::task::JoinError;
+use std::sync::PoisonError;
 
 /**
 The common error type for this application.
@@ -237,6 +238,12 @@ impl From<regex::Error> for Error {
     }
 }
 
+impl<T> From<PoisonError<T>> for Error {
+    fn from(_: PoisonError<T>) -> Self {
+        Self::with_msg("PoisonError")
+    }
+}
+
 pub fn todo() {
     todo!("TODO");
 }