This test tries to walk a sysfs path and hits a null pointer exception.

/tmp/guix-build-ceph-12.0.0.drv-0/ceph-12.0.0/src/test/common/test_blkdev.cc:32: Failure
Expected: (dir) != (nullptr), actual: NULL vs 8-byte object <00-00 00-00 00-00 00-00>

diff --git a/src/test/common/CMakeLists.txt b/src/test/common/CMakeLists.txt
--- a/src/test/common/CMakeLists.txt
+++ b/src/test/common/CMakeLists.txt
@@ -12,15 +12,6 @@
   ${CMAKE_DL_LIBS}
   )
 
-if(HAVE_BLKID)
-  # unittest_blkdev
-  add_executable(unittest_blkdev
-    test_blkdev.cc
-    )
-  add_ceph_unittest(unittest_blkdev)
-  target_link_libraries(unittest_blkdev ceph-common ${BLKID_LIBRARIES})
-endif()
-
 # unittest_bloom_filter
 add_executable(unittest_bloom_filter
   test_bloom_filter.cc
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<tr><td><span title='2018-08-11 18:55:45 +0200'>2018-08-11</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=d2b8900f58b269a8e1bc66510aca264ab653fb8c'>gnu: perl-lingua-en-tagger: Update to 0.29.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-08-11 17:22:31 +0200'>2018-08-11</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=9aba9b127840a116c806a2cbac901cf8077abcd0'>Migrate search.cpan.org home pages to metacpan.org.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-03-20 17:17:58 +0100'>2018-03-20</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=4a78fd4617908546be15d2c101f5cab512c71f8e'>Correct name and Email for ng0.</a><span class='msg-avail'>...</span></td><td>ng0</td></tr>
<tr><td><span title='2018-03-15 19:11:14 +0100'>2018-03-15</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=97c794942af813965e1f0113023d1fae234d7c1a'>gnu: perl-string-toidentifier-en: Update to 0.12.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-03-15 19:11:14 +0100'>2018-03-15</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=cd75b642d983000717e8b73b6402b1f67d1343a6'>gnu: perl-lingua-en-inflect-phrase: Update to 0.20.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-01-19 16:53:46 -0800'>2018-01-19</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=e8409dd2754259e6478ebcba390738f832452191'>gnu: perl-lingua-pt-stemmer: Update URL.</a><span class='msg-avail'>...</span></td><td>ng0</td></tr>
<tr><td><span title='2017-12-24 16:12:18 +0100'>2017-12-24</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=8895a968e470696d955cc712ed92aa34926a3af1'>gnu: dotherside: Update to 0.6.3.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2017-12-16 02:57:47 +0100'>2017-12-16</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=a4b7142e02a8a37d34ca884e140afc34867e7292'>gnu: perl-lingua-stem-ru: Update to 0.04.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2017-12-16 02:57:46 +0100'>2017-12-16</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=ce0be1bcf4a45ef278ee4240fa793b05e09d7b4f'>gnu: perl-lingua-en-inflect: Update to 1.903.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2017-11-13 23:03:01 +0100'>2017-11-13</span></td><td><a href='/guix/commit/gnu/packages/language.scm?id=5ccde2079e0b5f6e04b11765905dbd49d191fd8f'>gnu: Move test packages from perl to perl-check.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>