build failures on mipsel

[Daniel Kahn Gillmor]

hey folks--

the notmuch 0.27 release candidates are failing to build on the debian
mipsel build daemons:

https://buildd.debian.org/status/fetch.php?pkg=notmuch&arch=mipsel&ver=0.27%7Erc0-1&stamp=1527466396&raw=0
https://buildd.debian.org/status/fetch.php?pkg=notmuch&arch=mipsel&ver=0.27%7Erc1-1&stamp=1528017305&raw=0

They both fail the test suite here:


T357-index-decryption: Testing indexing decrypted mail
 FAIL   stash decryption during show
	--- T357-index-decryption.9.expected	2018-06-03 09:13:02.472009180 +0000
	+++ T357-index-decryption.9.output	2018-06-03 09:13:02.472009180 +0000
	@@ -1 +1 @@
	-This is a test encrypted message with a wumpus.
	+
 FAIL   search should now find the contents
	--- T357-index-decryption.10.expected	2018-06-03 09:13:02.528010019 +0000
	+++ T357-index-decryption.10.output	2018-06-03 09:13:02.528010019 +0000
	@@ -1 +1 @@
	-thread:0000000000000003   2000-01-01 [1/1] Notmuch Test Suite; test encrypted message for cleartext index 002 (encrypted inbox unread)
	+


I've tried to replicate the problem over on eller.debian.org (the mipsel
porterbox) but when i build 0.27~rc1 over there in an schroot, i don't
even get to T357 because the emacs_fcc_message() function hangs in this
loop (is this known to not work in an schroot or under similar
situations?):

+(test/test-lib.sh:988): test_emacs(): sleep 1
+(test/test-lib.sh:987): test_emacs(): test_emacs '()'
+(test/test-lib.sh:960): test_emacs(): missing_dependencies=
+(test/test-lib.sh:961): test_emacs(): test_require_external_prereq dtach
+(test/test-lib.sh:674): test_require_external_prereq(): binary=dtach
+(test/test-lib.sh:675): test_require_external_prereq(): [[ '' == t ]]
+(test/test-lib.sh:679): test_require_external_prereq(): true
+(test/test-lib.sh:962): test_emacs(): test_require_external_prereq emacs
+(test/test-lib.sh:674): test_require_external_prereq(): binary=emacs
+(test/test-lib.sh:675): test_require_external_prereq(): [[ '' == t ]]
+(test/test-lib.sh:679): test_require_external_prereq(): true
+(test/test-lib.sh:963): test_emacs(): test_require_external_prereq emacsclient
+(test/test-lib.sh:674): test_require_external_prereq(): binary=emacsclient
+(test/test-lib.sh:675): test_require_external_prereq(): [[ '' == t ]]
+(test/test-lib.sh:679): test_require_external_prereq(): true
+(test/test-lib.sh:964): test_emacs(): test -z ''
+(test/test-lib.sh:966): test_emacs(): '[' -z notmuch-test-suite-1593 ']'
+(test/test-lib.sh:997): test_emacs(): rm -f OUTPUT
+(test/test-lib.sh:998): test_emacs(): touch OUTPUT
+(test/test-lib.sh:1000): test_emacs(): emacsclient --socket-name=notmuch-test-suite-1593 --eval '(notmuch-test-progn ())'

can anyone suggest a good next debugging step?

    --dkg
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