Hi, I'm trying to run the test suite on GNU Guix and get a mysterious test failure in T450-emacs-show.sh: T450-emacs-show: Testing emacs notmuch-show view [...] PASS [11] notmuch-show: disable indentation of thread content (w/ notmuch-show-toggle-thread-indentation) FAIL [12] id buttonization --- T450-emacs-show.13.OUTPUT 2016-10-06 01:42:21.329950576 +0000 +++ T450-emacs-show.13.EXPECTED 2016-10-06 01:42:21.329950576 +0000 @@ -23,4 +23,4 @@ cid:xxx <<mid:abc>> <<mid:abc/def>> <<mid:abc%20def>> -<<mid:a>>bc. <<mid:abc>>, <<mid:abc>>; +<<mid:abc>>. <<mid:abc>>, <<mid:abc>>; nil PASS [13] Show handles subprocess errors Any idea what's going on here? It's using emacs-25.1. Thanks!