circus-error: show raw error_message instead of parsed error_lines

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: If7d6a7875f9678089bd06e1e7a2abdc96a6a6964

Author: NotAShelf

crates/server/src/routes/dashboard/preview/fixtures.rs

@@ -282,16 +282,16 @@ pub(super) fn queue_build(
 
 pub(super) fn eval_view(n: u128, status: &str, class: &str) -> EvalView {
   EvalView {
-    id:           id(n),
-    commit_hash:  "9f2c7a113badf00d7e57c0ffee1234567890abcd".into(),
-    commit_short: "9f2c7a113bad".into(),
-    status_text:  status.into(),
-    status_class: class.into(),
-    time:         "2026-06-18 11:42".into(),
-    error_lines:  Vec::new(),
-    hidden:       false,
-    jobset_name:  "packages".into(),
-    project_name: "circus".into(),
+    id:            id(n),
+    commit_hash:   "9f2c7a113badf00d7e57c0ffee1234567890abcd".into(),
+    commit_short:  "9f2c7a113bad".into(),
+    status_text:   status.into(),
+    status_class:  class.into(),
+    time:          "2026-06-18 11:42".into(),
+    error_message: String::new(),
+    hidden:        false,
+    jobset_name:   "packages".into(),
+    project_name:  "circus".into(),
   }
 }
 

crates/server/src/routes/dashboard/shared.rs

@@ -174,16 +174,16 @@ pub(super) struct QueueBuildView {
 }
 
 pub(super) struct EvalView {
-  pub(super) id:           Uuid,
-  pub(super) commit_hash:  String,
-  pub(super) commit_short: String,
-  pub(super) status_text:  String,
-  pub(super) status_class: String,
-  pub(super) time:         String,
-  pub(super) error_lines:  Vec<BuildErrorLine>,
-  pub(super) hidden:       bool,
-  pub(super) jobset_name:  String,
-  pub(super) project_name: String,
+  pub(super) id:            Uuid,
+  pub(super) commit_hash:   String,
+  pub(super) commit_short:  String,
+  pub(super) status_text:   String,
+  pub(super) status_class:  String,
+  pub(super) time:          String,
+  pub(super) error_message: String,
+  pub(super) hidden:        bool,
+  pub(super) jobset_name:   String,
+  pub(super) project_name:  String,
 }
 
 pub(super) struct EvalSummaryView {
@@ -763,20 +763,16 @@ impl From<&Evaluation> for EvalView {
       e.commit_hash.clone()
     };
     Self {
-      id:           e.id,
-      commit_hash:  e.commit_hash.clone(),
-      commit_short: short,
-      status_text:  text.to_string(),
-      status_class: class.to_string(),
-      time:         e.evaluation_time.format("%Y-%m-%d %H:%M").to_string(),
-      error_lines:  e
-        .error_message
-        .as_deref()
-        .map(parse_build_error)
-        .unwrap_or_default(),
-      hidden:       e.hidden,
-      jobset_name:  String::new(),
-      project_name: String::new(),
+      id:            e.id,
+      commit_hash:   e.commit_hash.clone(),
+      commit_short:  short,
+      status_text:   text.to_string(),
+      status_class:  class.to_string(),
+      time:          e.evaluation_time.format("%Y-%m-%d %H:%M").to_string(),
+      error_message: e.error_message.clone().unwrap_or_default(),
+      hidden:        e.hidden,
+      jobset_name:   String::new(),
+      project_name:  String::new(),
     }
   }
 }

crates/server/templates/evaluation.html

@@ -38,6 +38,20 @@ <h1>Evaluation {{ eval.commit_short }}</h1>
                     <button class="btn btn-small btn-secondary" type="submit">Hide Evaluation</button>
                 {% endif %}
             </form>
+            {% if eval.status_class == "running" || eval.status_class == "pending" %}
+                <form class="inline" method="POST" action="/evaluation/{{ eval.id }}/cancel"
+                      onsubmit="return confirm('Cancel this evaluation?')">
+                    <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+                    <button class="btn btn-small btn-danger" type="submit">Cancel Evaluation</button>
+                </form>
+            {% endif %}
+            {% if eval.status_class == "failed" || eval.status_class == "cancelled" %}
+                <form class="inline" method="POST" action="/evaluation/{{ eval.id }}/restart"
+                      onsubmit="return confirm('Restart this evaluation and discard its current builds?')">
+                    <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+                    <button class="btn btn-small btn-secondary" type="submit">Restart Evaluation</button>
+                </form>
+            {% endif %}
         </div>
     {% endif %}
     <p>
@@ -51,17 +65,13 @@ <h1>Evaluation {{ eval.commit_short }}</h1>
     <p>
         <strong>Time:</strong> {{ eval.time }}
     </p>
-    {% if !eval.error_lines.is_empty() %}
+    {% if !eval.error_message.is_empty() %}
         <section class="evaluation-diagnostics">
             <div class="section-heading">
                 <h2>Evaluation Error</h2>
                 <span>Nix diagnostics</span>
             </div>
-            <ul class="error-log">
-                {% for line in eval.error_lines %}
-                    <li class="error-log-line error-log-{{ line.level }}">{{ line.text }}</li>
-                {% endfor %}
-            </ul>
+            <pre class="error-detail">{{ eval.error_message }}</pre>
         </section>
     {% endif %}