GNU bug report logs - #34282
offload: error parsing derivation `*.drv': expected string `Derive(['

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Mark H Weaver <mhw <at> netris.org>
To: bug-guix <at> gnu.org
Subject: offload: error parsing derivation `*.drv': expected string `Derive(['
Date: Fri, 01 Feb 2019 15:57:07 -0500

In the last day or so, I've seen three instances of an offloading error
that I'd never seen before, which causes builds to abort on Hydra.  So
far, they have all been offloads from hydra.gnu.org to
hydra-slave1.netris.org, a build slave which I maintain, and which is
currently running an older version of Guix, circa 0.12.0.  Here's an
excerpt of the nix log output of one of the failures:

--8<---------------cut here---------------start------------->8---
these derivations will be built:
  /gnu/store/rrjvc7hcycy5yfvp6cr2m1vcwqyvc863-r-chemometricswithr-0.1.13.drv
process 2744 acquired build slot '/var/guix/offload/hydra-slave1.netris.org/0'
process 2744 acquired build slot '/var/guix/offload/hydra-slave3.netris.org/0'
load on machine 'hydra-slave1.netris.org' is 1.8 (normalized: 0.9)
@ build-started /gnu/store/rrjvc7hcycy5yfvp6cr2m1vcwqyvc863-r-chemometricswithr-0.1.13.drv - armhf-linux /var/log/guix/drvs/rr//jvc7hcycy5yfvp6cr2m1vcwqyvc863-r-chemometricswithr-0.1.13.drv
sending 28 store items to 'hydra-slave1.netris.org'...
exporting path `/gnu/store/5qjsrh8dncv6sninnyydkzccmh89498r-r-fs-1.2.6.drv'
[...]
exporting path `/gnu/store/zrw4yckqa9g6a8zglkz7g0gfr6k78jl8-r-usethis-1.4.0'
guix offload: error: build failed: error parsing derivation `/gnu/store/5qjsrh8dncv6sninnyydkzccmh89498r-r-fs-1.2.6.drv': expected string `Derive(['
@ hook-failed /gnu/store/rrjvc7hcycy5yfvp6cr2m1vcwqyvc863-r-chemometricswithr-0.1.13.drv - 256 builder for `/gnu/store/rrjvc7hcycy5yfvp6cr2m1vcwqyvc863-r-chemometricswithr-0.1.13.drv' failed with exit code 1
error: build of `/gnu/store/rrjvc7hcycy5yfvp6cr2m1vcwqyvc863-r-chemometricswithr-0.1.13.drv' failed
--8<---------------cut here---------------end--------------->8---

These are the instances I've seen so far:

  https://hydra.gnu.org/build/3353101
  https://hydra.gnu.org/build/3352885
  https://hydra.gnu.org/build/3352564

      Mark

Message #8 received at 34282 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Mark H Weaver <mhw <at> netris.org>
Cc: 34282 <at> debbugs.gnu.org
Subject: Re: bug#34282: offload: error parsing derivation `*.drv': expected
 string `Derive(['
Date: Mon, 04 Feb 2019 22:31:21 +0100

Hi Mark,

Mark H Weaver <mhw <at> netris.org> skribis:

> exporting path `/gnu/store/zrw4yckqa9g6a8zglkz7g0gfr6k78jl8-r-usethis-1.4.0'
> guix offload: error: build failed: error parsing derivation `/gnu/store/5qjsrh8dncv6sninnyydkzccmh89498r-r-fs-1.2.6.drv': expected string `Derive(['

Could you check the contents of this file?  This very much suggests a
file system corruption (e.g., the file is actually empty yet considered
valid per /var/guix/db/db.sqlite.)

Thanks,
Ludo’.

Message #11 received at 34282 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Mark H Weaver <mhw <at> netris.org>
Cc: 34282 <at> debbugs.gnu.org
Subject: Re: bug#34282: offload: error parsing derivation `*.drv': expected
 string `Derive(['
Date: Sat, 09 Mar 2019 19:30:48 +0100

Hi Mark,

Ludovic Courtès <ludo <at> gnu.org> skribis:

> Mark H Weaver <mhw <at> netris.org> skribis:
>
>> exporting path `/gnu/store/zrw4yckqa9g6a8zglkz7g0gfr6k78jl8-r-usethis-1.4.0'
>> guix offload: error: build failed: error parsing derivation `/gnu/store/5qjsrh8dncv6sninnyydkzccmh89498r-r-fs-1.2.6.drv': expected string `Derive(['
>
> Could you check the contents of this file?  This very much suggests a
> file system corruption (e.g., the file is actually empty yet considered
> valid per /var/guix/db/db.sqlite.)

This explanation is plausible so I’m closing as not-a-bug.  Please do
reopen if you think otherwise.

Thanks,
Ludo’.

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