swarm-controller: put a failed jobq node's error in the log message

swarm-controller/README.md

@@ -23,8 +23,8 @@ The swarm's control plane. The swarm UI and `swarmctl` are its clients.
   one hive whose declaration places it.
 - **Job graph** — a `hive-jobq` scheduler, served at `GET /api/jobq/graph`.
   Every provisioning step below runs as a node in it. A node that fails logs
-  one `warn` line, `swarm jobq: node failed`, with its `node` id, `kind` and
-  `error`.
+  one `warn` line, `swarm jobq: node failed: <error>`, with its `node` id and
+  `kind`.
 - **Agent creation** — `POST /api/agents` queues the SSO identity (through
   `swarm-authelia-bridge`), forge user, config repo, store identity, forge
   token and matrix account, declares the agent `paused`, then sends its hive

swarm-controller/src/jobq.rs

@@ -344,7 +344,7 @@ pub(crate) async fn run_swarm_node(
     let node_kind = hive_jobq_wire::WireNode::label(&kind);
     let (builder, outcome) = run_node_work(kind, builder, deps).await;
     if let hive_jobq::scheduler::Outcome::Failed(error) = &outcome {
-        tracing::warn!(node = id.get(), kind = %node_kind, %error, "swarm jobq: node failed");
+        tracing::warn!(node = id.get(), kind = %node_kind, "swarm jobq: node failed: {error}");
     }
     (builder, outcome)
 }
@@ -4797,7 +4797,7 @@ mod mint_identity_tests {
         assert_eq!(field("kind"), "set_agent_wanted");
         assert_eq!(field("node"), ids[0].get().to_string());
         assert!(
-            field("error").contains("no swarm queue is configured"),
+            field("message").contains("no swarm queue is configured"),
             "{fields:?}"
         );
     }