Stage names must be string literals

vars/runTask.groovy

@@ -4,6 +4,12 @@ def call(String branch, String repo, String task, String phpversion, String data
             label 'docker'
         }
 
+        environment {
+            PHP_VERSION = "${config.phpversion}"
+            DBTYPE = "${config.database}"
+            TASK = "${config.task}"
+        }
+
         stages {
             stage("Git Checkout") {
                 steps {
@@ -40,12 +46,7 @@ def call(String branch, String repo, String task, String phpversion, String data
                 }
             }
 
-            stage("Run ${config.task}") {
-                environment {
-                    PHP_VERSION = "${config.phpversion}"
-                    DBTYPE = "${config.database}"
-                    TASK = "${config.task}"
-                }
+            stage("Run Task") {
                 steps {
                     sh '$HOME/scripts/runner/master/run.sh'
                 }