Add params to EntryRenameError

lib/core/libimagstore/src/error.rs

@@ -164,14 +164,9 @@ error_chain! {
             display("Encoding error")
         }
 
-        StorePathError          {
-            description("Store Path error")
-            display("Store Path error")
-        }
-
-        EntryRenameError        {
+        EntryRenameError(old: PathBuf, new: PathBuf) {
             description("Entry rename error")
-            display("Entry rename error")
+            display("Entry rename error: {:?} -> {:?}", old, new)
         }
 
         StoreIdHandlingError    {

lib/core/libimagstore/src/store.rs

@@ -756,7 +756,7 @@ impl Store {
             let new_id_pb = try!(new_id.clone().with_base(self.path().clone()).into_pathbuf());
 
             match self.backend.rename(&old_id_pb, &new_id_pb) {
-                Err(e) => return Err(e).chain_err(|| SEK::EntryRenameError),
+                Err(e) => return Err(e).chain_err(|| SEK::EntryRenameError(old_id_pb, new_id_pb)),
                 Ok(_) => {
                     debug!("Rename worked on filesystem");