bug#39575: guix time-machine fails when a tarball was modified in-place

[Jan Nieuwenhuizen <janneke@gnu.org>]

zimoun writes:

Hi Simon,

> On Fri, 14 Feb 2020 at 14:24, Jan Nieuwenhuizen <janneke@gnu.org> wrote:
>
> This command
>
>> >>  $ guix download -o /tmp/harfbuzz-old.tar.bz2 \
>> >>  https://ci.guix.gnu.org/file/harfbuzz-2.4.0.tar.bz2/sha256/1mpah6kwqid1kxsj4rwqsniivqbrx231j65v51yncx6s0dch0dch
>
> now works.
>
>
> However, this command
>
> $ guix time-machine \
>      --commit=56e95d54d209c2428f970d65d9b27ae4168449ad -- help
>
> still fails for me with the message:
>
> [...]
> building /gnu/store/gglbrs8j0iq8ygh55inwfvpwb5z2x254-guile-2.2.4.drv...
> - 'check' phasebuilder for
> `/gnu/store/gglbrs8j0iq8ygh55inwfvpwb5z2x254-guile-2.2.4.drv' failed
> with exit code 1
> build of /gnu/store/gglbrs8j0iq8ygh55inwfvpwb5z2x254-guile-2.2.4.drv failed
> View build log at
> '/var/log/guix/drvs/gg/lbrs8j0iq8ygh55inwfvpwb5z2x254-guile-2.2.4.drv.bz2'.
> cannot build derivation
> `/gnu/store/yqpxm07zm0mirrdvl2c4qvf8biyzg468-guix-56e95d54d.drv': 1
> dependencies couldn't be built
> cannot build derivation
> `/gnu/store/7z7p0m7abi246gzigw8as2q3w33k1n31-profile.drv': 1
> dependencies couldn't be built
> guix time-machine: error: build of
> `/gnu/store/7z7p0m7abi246gzigw8as2q3w33k1n31-profile.drv' failed
>
> The log /var/log/guix/drvs/gg/lbrs8j0iq8ygh55inwfvpwb5z2x254-guile-2.2.4.drv.bz2
> is not meaningful for me... but I can report it here.
>
>
>> that i'm trying now, and for now it looks fine (lots of stuff to build,
>> i'll report success or failure when it's done).
>
> Well, is it a success or a failure for you?

For me, pythohn-minimal fails to build

    build-started /gnu/store/s0lw23myd3hvpw28sffkhz8b30x1hcz0-python-minimal-3.7.3.drv - x86_64-linux /var/log/guix/drvs/s0//lw23myd3hvpw28sffkhz8b30x1hcz0-python-minimal-3.7.3.drv.bz2 20827

    ======================================================================
    FAIL: test_register_chain (test.test_faulthandler.FaultHandlerTests)
    ----------------------------------------------------------------------
    Traceback (most recent call last):
      File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/test/test_faulthandler.py", line 724, in test_register_chain
        self.check_register(chain=True)
      File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/test/test_faulthandler.py", line 702, in check_register
        self.assertEqual(exitcode, 0)
    AssertionError: -11 != 0

    ----------------------------------------------------------------------

    Ran 42 tests in 18.782s

    FAILED (failures=1, skipped=4)
    1 test failed again:
        test_faulthandler

    == Tests result: FAILURE then FAILURE ==

    382 tests OK.

    1 test failed:
        test_faulthandler

Not sure what to do here.  Could this be a (harmless) coincident?

Greetings
janneke

-- 
Jan Nieuwenhuizen <janneke@gnu.org> | GNU LilyPond http://lilypond.org
Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.com