diff -Naur twisted-twisted-17.9.0/src/twisted/python/_setup.py twisted-twisted-17.9.0_patched/src/twisted/python/_setup.py
--- twisted-twisted-17.9.0/src/twisted/python/_setup.py	2017-09-23 07:56:08.000000000 +0200
+++ twisted-twisted-17.9.0_patched/src/twisted/python/_setup.py	2018-10-05 11:06:23.305860722 +0200
@@ -227,14 +227,11 @@
         requirements = ["zope.interface >= 3.6.0"]
 
     requirements.append("constantly >= 15.1")
-    requirements.append("incremental >= 16.10.1")
     requirements.append("Automat >= 0.3.0")
     requirements.append("hyperlink >= 17.1.1")
 
     arguments.update(dict(
         packages=find_packages("src"),
-        use_incremental=True,
-        setup_requires=["incremental >= 16.10.1"],
         install_requires=requirements,
         entry_points={
             'console_scripts': _CONSOLE_SCRIPTS
