diff --git a/test/ufuzz/actions.js b/test/ufuzz/actions.js
index fa4431a7..a5cd0eb2 100644
--- a/test/ufuzz/actions.js
+++ b/test/ufuzz/actions.js
@@ -4,6 +4,29 @@ var get = require("https").get;
 var parse = require("url").parse;
 var base = process.argv[2];
 var token = process.argv[3];
+var queued = 0, total = 0, earliest, now = Date.now();
+process.on("beforeExit", function() {
+    if (queued > 3) {
+        process.stdout.write("0");
+    } else {
+        var average = total > 2 && (now - earliest) / (total - 1);
+        process.stdout.write(Math.min(Math.max(20 * average, 2700000), 18000000).toFixed(0));
+    }
+});
+read(base + "/actions/workflows/ufuzz.yml/runs?event=schedule", function(reply) {
+    check(reply, "workflow_runs").filter(function(workflow) {
+        return /^(in_progress|queued|)$/.test(workflow.status);
+    }).forEach(function(workflow) {
+        read(workflow.jobs_url, function(reply) {
+            check(reply, "jobs").forEach(function(job) {
+                if (job.status == "queued") queued++;
+                total++;
+                var start = Date.parse(job.started_at);
+                if (!(earliest < start)) earliest = start;
+            });
+        });
+    });
+});
 
 function read(url, callback) {
     var options = parse(url);
@@ -22,28 +45,6 @@ function read(url, callback) {
     });
 }
 
-var queued = 0, total = 0, earliest, now = Date.now();
-process.on("beforeExit", function() {
-    if (queued > 3) {
-        process.stdout.write("0");
-    } else if (now - earliest > 0 && total > 1) {
-        process.stdout.write(Math.min(20 * (now - earliest) / (total - 1), 18000000).toFixed(0));
-    } else {
-        process.stdout.write("3600000");
-    }
-});
-read(base + "/actions/workflows/ufuzz.yml/runs?event=schedule", function(reply) {
-    reply.workflow_runs.filter(function(workflow) {
-        return /^(in_progress|queued|)$/.test(workflow.status);
-    }).forEach(function(workflow) {
-        read(workflow.jobs_url, function(reply) {
-            reply.jobs.forEach(function(job) {
-                if (job.status == "queued") queued++;
-                total++;
-                if (!job.started_at) return;
-                var start = new Date(job.started_at);
-                if (!(earliest < start)) earliest = start;
-            });
-        });
-    });
-});
+function check(reply, field) {
+    return reply && Array.isArray(reply[field]) ? reply[field] : [];
+}