Merge backout of 1ae2a75724bb; fixes #118.

CHANGES.txt

@@ -2,6 +2,13 @@
 CHANGES
 =======
 
+20.0
+----
+
+* Issue #118: Once again omit the package metadata (egg-info)
+  from the list of outputs in ``--record``. This version of setuptools
+  can no longer be used to upgrade pip earlier than 6.0.
+
 19.7
 ----
 

setuptools/command/install_egg_info.py

@@ -29,7 +29,7 @@ class install_egg_info(Command):
         ).egg_name() + '.egg-info'
         self.source = ei_cmd.egg_info
         self.target = os.path.join(self.install_dir, basename)
-        self.outputs = [self.target]
+        self.outputs = []
 
     def run(self):
         self.run_command('egg_info')