Better handling of errors, not good, but better.

src/probe/vem_ringde.rs

@@ -5,7 +5,7 @@ use crate::probe::Probe;
 pub struct VemRingde;
 
 impl Probe for VemRingde {
-    fn search(&mut self, ctx: &mut Context, number: &str) {
+    fn search(&mut self, ctx: &mut Context, number: &str) -> Result<(), ()> {
         let body = if let Some(cache) = ctx.cache_get("vem_ringde", &number) {
             String::from_utf8(cache.data).unwrap()
         } else {
@@ -17,5 +17,7 @@ impl Probe for VemRingde {
 
         ctx.cache_set("vem_ringde", &number, body.as_bytes())
             .expect("wut?! why not?!");
+
+        Err(())
     }
 }