Re: Bug#683505: notmuch: FTBFS if built twice in a row: unrepresentable changes to...

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+Date: Thu, 2 Aug 2012 10:33:41 -0400\r
+From: Austin Clements <amdragon@MIT.EDU>\r
+To: Jameson Graef Rollins <jrollins@finestructure.net>\r
+Subject: Re: Bug#683505: notmuch: FTBFS if built twice in a row:\r
+       unrepresentable changes to source\r
+Message-ID: <20120802143222.GI8502@mit.edu>\r
+References: <20120801103707.GA668@jwilk.net>\r
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+Cc: Jakub Wilk <jwilk@debian.org>, notmuch@notmuchmail.org,\r
+       683505@bugs.debian.org\r
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+\r
+Quoth Jameson Graef Rollins on Aug 01 at  8:10 pm:\r
+> On Wed, Aug 01 2012, David Bremner <david@tethera.net> wrote:\r
+> > As I mentioned on IRC, the test only fails on the Debian build machines\r
+> > (building in a clean chroot using sbuild is not enough) so it isn't\r
+> > really clear how to duplicate the it. Perhaps building in a clean\r
+> > virtual machine without networking would do it.  For which tests fail,\r
+> > see\r
+> >\r
+> > https://buildd.debian.org/status/fetch.php?pkg=notmuch&arch=i386&ver=0.13.2-1&stamp=1338740444\r
+> >\r
+> > I think the first things to fail are emacs tests. At a wild guess, it\r
+> > looks like all of the failing tests are related to emacs.\r
+> \r
+> From a cursory look that does appear to be the case.  The non-emacs\r
+> tests that are also failing (json and crypto) are using\r
+> emacs_deliver_message.  Do we have any idea what's going on here?\r
+\r
+There is one other illuminating tidbit in the buildd log:\r
+\r
+emacs-subject-to-filename: Testing emacs: mail subject to filename\r
+test-lib.sh: line 187: 30606 Terminated              sleep 1\r
+FATAL: Unexpected exit with code 1\r
+\r
+>From a cursory glance, emacs-subject-to-filename appears to be the\r
+only test that calls test_emacs outside of a subtest and hence without\r
+stdout/stderr redirection.\r
+\r
+The line number is useless, but, assuming valgrind isn't enabled,\r
+there's only one place we sleep 1 in test-lib.sh: in the loop in\r
+test_emacs that waits for the Emacs server to start up.  Furthermore,\r
+timeout sends SIGTERM by default, suggesting that we're timing out\r
+while we're spinning in that loop.\r