Duplicity fails to build, this might be because of the GPG version used,
as it looks to me that GPG complains that the message is quite old. I'll
ask on the Duplicity talk mailing list.


test_remove_all_inc_of_but_n (testing.functional.test_cleanup.CleanupTest) ... ok

======================================================================
ERROR: test_sigchain_fileobj (testing.unit.test_collections.CollectionTest)
Test getting signature chain fileobjs from archive_dir
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/guix-build-duplicity-0.7.17.drv-0/duplicity-0.7.17/testing/unit/test_collections.py", line 188, in test_sigchain_fileobj
    self.sigchain_fileobj_check_list(self.sigchain_fileobj_get(None))
  File "/tmp/guix-build-duplicity-0.7.17.drv-0/duplicity-0.7.17/testing/unit/test_collections.py", line 180, in sigchain_fileobj_check_list
    test_fileobj(0, "Hello, world!")
  File "/tmp/guix-build-duplicity-0.7.17.drv-0/duplicity-0.7.17/testing/unit/test_collections.py", line 177, in test_fileobj
    fileobjlist[i].close()
  File "/tmp/guix-build-duplicity-0.7.17.drv-0/duplicity-0.7.17/duplicity/dup_temp.py", line 227, in close
    assert not self.fileobj.close()
  File "/tmp/guix-build-duplicity-0.7.17.drv-0/duplicity-0.7.17/duplicity/gpg.py", line 304, in close
    self.gpg_failed()
  File "/tmp/guix-build-duplicity-0.7.17.drv-0/duplicity-0.7.17/duplicity/gpg.py", line 271, in gpg_failed
    raise GPGError(msg)
GPGError: GPG Failed, see log below:
===== Begin GnuPG log =====
gpg: CAST5 encrypted data
gpg: encrypted with 1 passphrase
gpg: WARNING: message was not integrity protected
gpg: Hint: If this message was created before the year 2003 it is
likely that this message is legitimate.  This is because back
then integrity protection was not widely used.
gpg: Use the option '--ignore-mdc-error' to decrypt anyway.
gpg: decryption forced to fail!
gpg: WARNING: unsafe permissions on homedir '/tmp/guix-build-duplicity-0.7.17.drv-0/duplicity-0.7.17/testing/gnupg'
===== End GnuPG log =====


----------------------------------------------------------------------
Ran 418 tests in 548.274s

FAILED (errors=1, skipped=3)
Backtrace:
           5 (primitive-load "/gnu/store/h8y2ahqbx83ih4kcf9x5x11wg4q…")
In ice-9/eval.scm:
   191:35  4 (_ _)
In srfi/srfi-1.scm:
    640:9  3 (for-each #<procedure 9ea260 at /gnu/store/5sy3815dpjc…> …)
In /gnu/store/5sy3815dpjcvxhssaba6g2ilxm29va9n-module-import/guix/build/gnu-build-system.scm:
   799:31  2 (_ _)
In /gnu/store/5sy3815dpjcvxhssaba6g2ilxm29va9n-module-import/guix/build/python-build-system.scm:
    142:8  1 (check #:tests? _ #:test-target _ #:use-setuptools? _)
In /gnu/store/5sy3815dpjcvxhssaba6g2ilxm29va9n-module-import/guix/build/utils.scm:
    616:6  0 (invoke _ . _)

/gnu/store/5sy3815dpjcvxhssaba6g2ilxm29va9n-module-import/guix/build/utils.scm:616:6: In procedure invoke:
Throw to key `srfi-34' with args `(#<condition &invoke-error [program: "python" arguments: ("-c" "import setuptools, tokenize;__file__='setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\\r\\n', '\\n');f.close();exec(compile(code, __file__, 'exec'))" "test") exit-status: 1 term-signal: #f stop-signal: #f] 76a640>)'.
builder for `/gnu/store/ghxnpxvxvgpgcrf0b7a5ia4s7lm5aha6-duplicity-0.7.17.drv' failed with exit code 1
cannot build derivation `/gnu/store/1439zhmkrg58n15mj5m9nmx6sxd01km5-deja-dup-34.3.drv': 1 dependencies couldn't be built
guix package: error: build failed: build of `/gnu/store/1439zhmkrg58n15mj5m9nmx6sxd01km5-deja-dup-34.3.drv' failed