diff -Nru rust-im-rc-13.0.0/debian/changelog rust-im-rc-13.0.0/debian/changelog
--- rust-im-rc-13.0.0/debian/changelog	2019-08-16 00:55:36.000000000 +0000
+++ rust-im-rc-13.0.0/debian/changelog	2019-11-27 22:32:41.000000000 +0000
@@ -1,3 +1,9 @@
+rust-im-rc (13.0.0-1+rpi1) bullseye-staging; urgency=medium
+
+  * Disable librust-im-rc+proptest-dev for now.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Wed, 27 Nov 2019 22:32:41 +0000
+
 rust-im-rc (13.0.0-1) unstable; urgency=medium
 
   * Team upload.
diff -Nru rust-im-rc-13.0.0/debian/control rust-im-rc-13.0.0/debian/control
--- rust-im-rc-13.0.0/debian/control	2019-08-16 00:55:36.000000000 +0000
+++ rust-im-rc-13.0.0/debian/control	2019-11-27 22:32:36.000000000 +0000
@@ -43,7 +43,7 @@
  for use with cargo and dh-cargo.
 
 Package: librust-im-rc+proptest-dev
-Architecture: any
+Architecture: none
 Multi-Arch: same
 Depends:
  ${misc:Depends},