=== ERROR ===
[XXX]
YYY/notmuch_fail exited with status 1
-command: YYY/notmuch_fail search --format\=sexp --format-version\=3 --sort\=newest-first tag\:inbox
+command: YYY/notmuch_fail search --format\=sexp --format-version\=4 --sort\=newest-first tag\:inbox
exit status: 1"
test_begin_subtest "Search handles subprocess warnings"