NewSource: Rename into_source -> to_source and take reffence &self instead.

hammond-data/src/models/new_source.rs

@@ -46,7 +46,7 @@ impl NewSource {
     }
 
     // Look out for when tryinto lands into stable.
-    pub(crate) fn into_source(self) -> Result<Source> {
+    pub(crate) fn to_source(&self) -> Result<Source> {
         self.insert_or_ignore()?;
         dbqueries::get_source_from_uri(&self.uri)
     }

hammond-data/src/models/source.rs

@@ -149,7 +149,7 @@ impl Source {
     pub fn from_url(uri: &str) -> Result<Source> {
         let url = Url::parse(&uri)?;
 
-        NewSource::new(&url).into_source()
+        NewSource::new(&url).to_source()
     }
 
     /// `Feed` constructor.