Ignore rename error if log file doesn't exist

The file is moved only to create a backup of it. If it doesn't exist,
there is no need to create the backup, so the error can be safely
ignored.

1 files changed, 6 insertions, 4 deletions

diff --git a/mullvad-daemon/src/main.rs b/mullvad-daemon/src/main.rs
index f4a033e5f0..50fc5d1991 100644
--- a/mullvad-daemon/src/main.rs
+++ b/mullvad-daemon/src/main.rs
@@ -660,10 +660,12 @@ impl Daemon {
             backup.set_extension("old.log");
 
             fs::rename(file, backup).unwrap_or_else(|error| {
-                warn!(
-                    "Failed to create backup of previous tunnel log file ({})",
-                    error
-                );
+                if error.kind() != io::ErrorKind::NotFound {
+                    warn!(
+                        "Failed to create backup of previous tunnel log file ({})",
+                        error
+                    );
+                }
             });
 
             fs::File::create(file).chain_err(|| "Unable to create the tunnel log file")?;