Disable test as it uses bootstrap binaries downloaded from the network
when not present, which violates Debian Policy.

Index: guix/tests/build-utils.scm
===================================================================
--- guix.orig/tests/build-utils.scm
+++ guix/tests/build-utils.scm
@@ -94,6 +94,7 @@
                           port
                           cons)))))
 
+(test-skip 1)
 (test-equal "wrap-program, one input, multiple calls"
   "hello world\n"
   (call-with-temporary-directory
