Replace usage of `get_ref`

diff --git a/src/cargo/core/source.rs b/src/cargo/core/source.rs
index e89eefca875c1d9ca5d6dfeed315ecabd2431bde..1b5c3c5996258b7ea8492b67369ccfec31e213a9 100644 (file)
--- a/src/cargo/core/source.rs
+++ b/src/cargo/core/source.rs
@@ -202,7 +202,7 @@ impl SourceId {
                 };
 
                 let precise_str = if precise.is_some() {
-                    format!("#{}", precise.get_ref())
+                    format!("#{}", precise.as_ref().unwrap())
                 } else {
                     "".to_string()
                 };