Print init errors

backend/sync_server/src/errors.rs

@@ -43,6 +43,25 @@ impl SyncServerError {
     }
 }
 
+#[derive(Debug, Clone, Serialize, JsonSchema)]
+pub struct SerializedError {
+    pub message: String,
+    pub causes: Vec<String>,
+}
+
+impl ToString for SerializedError {
+    fn to_string(&self) -> String {
+        let mut result = self.message.clone();
+        if !self.causes.is_empty() {
+            result.push_str("\nCauses:\n");
+            for cause in &self.causes {
+                result.push_str(&format!("- {}\n", cause));
+            }
+        }
+        result
+    }
+}
+
 impl IntoResponse for SyncServerError {
     fn into_response(self) -> Response {
         let body = Json(self.serialize());
@@ -59,12 +78,6 @@ impl IntoResponse for SyncServerError {
     }
 }
 
-#[derive(Debug, Clone, Serialize, JsonSchema)]
-pub struct SerializedError {
-    pub message: String,
-    pub causes: Vec<String>,
-}
-
 impl From<&anyhow::Error> for SerializedError {
     fn from(error: &anyhow::Error) -> SerializedError {
         let mut causes = vec![];

backend/sync_server/src/main.rs

@@ -29,7 +29,7 @@ async fn main() -> ExitCode {
     match result {
         Ok(()) => ExitCode::SUCCESS,
         Err(e) => {
-            eprintln!("Failed to set up logging: {e}");
+            eprintln!("{}", e.serialize().to_string());
             ExitCode::FAILURE
         }
     }