From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Subject: bug#39575: guix time-machine fails when a tarball was modified
 in-place
Date: Fri, 21 Feb 2020 21:48:05 +0100
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 (zimoun's message of "Fri, 21 Feb 2020 16:58:15 +0100")
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To: zimoun <zimon.toutoune@gmail.com>
Cc: 39575@debbugs.gnu.org

Hi,

zimoun <zimon.toutoune@gmail.com> skribis:

> Well, now, I am failing at the Python 3.7.3 step too:
>
>   /gnu/store/s0lw23myd3hvpw28sffkhz8b30x1hcz0-python-minimal-3.7.3.drv fa=
iled
>
>
>
> However, the python error seems about TLS:
>
> test.test_asyncio.test_windows_utils (unittest.loader.ModuleSkipped)
> ... test test_asyncio failed
> skipped 'Windows only'
>
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> ERROR: test_start_tls_server_1
> (test.test_asyncio.test_sslproto.SelectorStartTLSTests)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/test/=
test_asyncio/test_sslproto.py",
> line 507, in test_start_tls_server_1
>     self.loop.run_until_complete(run_main())
>   File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/async=
io/base_events.py",
> line 584, in run_until_complete
>     return future.result()
>   File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/test/=
test_asyncio/test_sslproto.py",
> line 502, in run_main
>     loop=3Dself.loop, timeout=3Dself.TIMEOUT)
>   File "/tmp/guix-build-python-minimal-3.7.3.drv-0/Python-3.7.3/Lib/async=
io/tasks.py",
> line 423, in wait_for
>     raise futures.TimeoutError()
> concurrent.futures._base.TimeoutError

It seems to be timing-sensitive, is it deterministic?

One lesson here is that we should keep substitutes for a longer amount
of time=E2=80=94we actually have a lot of storage space on berlin so we sho=
uld
investigate what happened.  (The NixOS folks currently keep substitutes
forever but they found it=E2=80=99s starting to be expensive=E2=80=A6)

Thanks,
Ludo=E2=80=99.