diff --git a/scripts/nightly.yaml b/scripts/nightly.yaml
index 8e30b12e2..5ea90e0ef 100644
--- a/scripts/nightly.yaml
+++ b/scripts/nightly.yaml
@@ -264,7 +264,7 @@ stages:
         artifactName: 'Mac'
         targetPath: $(Agent.TempDirectory)
     - script: cd $(Agent.TempDirectory); mkdir osx-bin; cd osx-bin; unzip ../*osx*.zip
-    - script: cd $(Agent.TempDirectory); mkdir linux-bin; cd linux-bin; unzip ../*glibc-2.9.zip
+    - script: cd $(Agent.TempDirectory); mkdir linux-bin; cd linux-bin; unzip ../*glibc*.zip
     - script: cd $(Agent.TempDirectory); mkdir win32-bin; cd win32-bin; unzip ../*x86-win*.zip
     - script: cd $(Agent.TempDirectory); mkdir win64-bin; cd win64-bin; unzip ../*x64-win*.zip
     - script: python3 -m pip install --user -U setuptools wheel
diff --git a/src/api/python/setup.py b/src/api/python/setup.py
index 66c12c58b..8915e53ba 100644
--- a/src/api/python/setup.py
+++ b/src/api/python/setup.py
@@ -234,7 +234,7 @@ if 'bdist_wheel' in sys.argv and '--plat-name' not in sys.argv:
         distos = RELEASE_METADATA[2]
         if distos in ('debian', 'ubuntu') or 'linux' in distos:
             raise Exception("Linux binary distributions must be built on centos to conform to PEP 513")
-        elif distos == 'centos':
+        elif distos == 'libc':
             if arch == 'x64':
                 plat_name = 'manylinux1_x86_64'
             else:
@@ -251,9 +251,9 @@ if 'bdist_wheel' in sys.argv and '--plat-name' not in sys.argv:
             if arch == 'x64':
                 plat_name ='macosx_%s_x86_64' % osver.replace('.', '_')
             else:
-                raise Exception('idk how os x works. what goes here?')
+                raise Exception(f"idk how os {distos} {osvar} works. what goes here?")
         else:
-            raise Exception("idk how to translate between this z3 release os and the python naming scheme")
+            raise Exception(f"idk how to translate between this z3 release os {distos} and the python naming scheme")
 
     idx = sys.argv.index('bdist_wheel') + 1
     sys.argv.insert(idx, '--plat-name')
diff --git a/src/sat/sat_ddfw.cpp b/src/sat/sat_ddfw.cpp
index d69c4516c..1d4d4d1fc 100644
--- a/src/sat/sat_ddfw.cpp
+++ b/src/sat/sat_ddfw.cpp
@@ -224,7 +224,6 @@ namespace sat {
             m_flat_use_list.append(ul);
         }
         m_use_list_index.push_back(m_flat_use_list.size());
-//        m_use_list_index.push_back(m_flat_use_list.size());
     }
 
 
diff --git a/src/sat/sat_ddfw.h b/src/sat/sat_ddfw.h
index 89d74f8f4..358c87656 100644
--- a/src/sat/sat_ddfw.h
+++ b/src/sat/sat_ddfw.h
@@ -107,12 +107,7 @@ namespace sat {
             use_list(ddfw& p, literal lit):
                 p(p), i(lit.index()) {}
             unsigned const* begin() { return p.m_flat_use_list.c_ptr() + p.m_use_list_index[i]; }
-            unsigned const* end() {
-                if (p.m_use_list_index.size() <= i + 1) { 
-                    std::cout << "out of bounds\n"; 
-                } 
-                VERIFY(p.m_use_list_index.size() > i + 1);  return p.m_flat_use_list.c_ptr() + p.m_use_list_index[i + 1];
-            }
+            unsigned const* end() { return p.m_flat_use_list.c_ptr() + p.m_use_list_index[i + 1]; }
         };
 
         void flatten_use_list();