diff -Nru fabric-1.13.1/debian/changelog fabric-1.13.1/debian/changelog
--- fabric-1.13.1/debian/changelog	2016-12-24 18:35:22.000000000 +0000
+++ fabric-1.13.1/debian/changelog	2017-01-19 03:32:02.000000000 +0000
@@ -1,3 +1,11 @@
+fabric (1.13.1-2) unstable; urgency=medium
+
+  * debian/rules: Disable test_nested_execution_with_explicit_ports
+    when running tests at build time as it hangs indefinitely
+    when run on a single core VM (Closes: #850230).
+
+ -- Andrew Starr-Bochicchio <asb@debian.org>  Wed, 18 Jan 2017 22:32:02 -0500
+
 fabric (1.13.1-1) unstable; urgency=medium
 
   * New upstream release.
diff -Nru fabric-1.13.1/debian/rules fabric-1.13.1/debian/rules
--- fabric-1.13.1/debian/rules	2016-06-12 17:15:32.000000000 +0000
+++ fabric-1.13.1/debian/rules	2017-01-19 03:29:35.000000000 +0000
@@ -3,6 +3,7 @@
 # Uncomment this to turn on verbose mode.
 #export DH_VERBOSE=1
 
+export PYBUILD_TEST_ARGS=--exclude=test_nested_execution_with_explicit_ports
 export PYBUILD_NAME=fabric
 
 %: