suppress "Pure" with its special threads=1 (Jenkins log does not provide threads in ISABELLE_BUILD_OPTIONS);
--- a/src/Pure/Admin/jenkins.scala Mon May 08 10:23:12 2017 +0200
+++ b/src/Pure/Admin/jenkins.scala Mon May 08 10:27:13 2017 +0200
@@ -56,6 +56,7 @@
build_log_jobs.map(job_name =>
Build_Status.Profile("Jenkins " + job_name,
Build_Log.Prop.build_engine + " = " + SQL.string(Build_Log.Jenkins.engine) + " AND " +
+ Build_Log.Data.session_name + " <> " + SQL.string("Pure") + " AND " +
Build_Log.Data.log_name + " LIKE " + SQL.string("%" + job_name)))