diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -2474,6 +2474,7 @@
     'factory' : AnnotatedBuilder.getAnnotatedBuildFactory(
                     script="bolt-nfc.py",
                     depends_on_projects=['llvm', 'bolt'],
+                    warnOnWarnings=True,
                     )},
 
     {'name': "bolt-x86_64-ubuntu-clang-bolt-lto-pgo",
diff --git a/zorg/buildbot/builders/AnnotatedBuilder.py b/zorg/buildbot/builders/AnnotatedBuilder.py
--- a/zorg/buildbot/builders/AnnotatedBuilder.py
+++ b/zorg/buildbot/builders/AnnotatedBuilder.py
@@ -12,7 +12,8 @@
     extra_args=None,
     timeout=1200,
     checkout_llvm_sources=True,
-    script_interpreter="python"):
+    script_interpreter="python",
+    warnOnWarnings=False):
     """
     Returns a new build factory that uses AnnotatedCommand, which
     allows the build to be run by version-controlled scripts that do
@@ -101,6 +102,7 @@
                                description="annotate",
                                timeout=timeout,
                                haltOnFailure=True,
+                               warnOnWarnings=warnOnWarnings,
                                command=command,
                                env=merged_env))
     return f