Failed to produce output path for guix-package-cache

Dear Guix,

I'm running into the following problem:

----

$ guix pull

Updating channel 'guix-science' from Git repository at

'https://github.com/guix-science/guix-science.git'...

Updating channel 'guix' from Git repository at

'https://git.savannah.gnu.org/git/guix.git'...

Building from these channels:

  guix      https://git.savannah.gnu.org/git/guix.git  5763eba

  guix-sciencehttps://github.com/guix-science/guix-science.git5a2e3d5

Computing Guix derivation for 'x86_64-linux'... |

The following derivation will be built:

   /gnu/store/xy2q5rk35sxn07xjq89l3ga95igjmmsi-profile.drv

building package cache...

/builder for

`/gnu/store/4q9aprxi2rr1i6yjk1y7d76nbavwp4fy-guix-package-cache.drv'

failed to produce output path

`/gnu/store/xgjiqmh9qlvnq1701zb5dsbbwnjx76qq-guix-package-cache'

build of

/gnu/store/4q9aprxi2rr1i6yjk1y7d76nbavwp4fy-guix-package-cache.drv failed

Could not find build log for

'/gnu/store/4q9aprxi2rr1i6yjk1y7d76nbavwp4fy-guix-package-cache.drv'.

cannot build derivation

`/gnu/store/xy2q5rk35sxn07xjq89l3ga95igjmmsi-profile.drv': 1

dependencies couldn't be built

guix pull: error: build of

`/gnu/store/xy2q5rk35sxn07xjq89l3ga95igjmmsi-profile.drv' failed

----

Is this a known problem? I assume this may be a problem with the

"guix-science" channel (which would be my own fault of course).

If it is, then perhaps the UI could be improved to show why the package

cache couldn't be built.

Perhaps, as a matter of diagnostics, it could build package caches

separately for each channel to pinpoint which channel is causing the

problem.

Thanks.

Kind regards,

Roel Janssen

Hi Roel,

Roel Janssen <roel@gnu.org> skribis:

Could you find the log of this derivation? :-)

It’ll tell us what’s wrong.

Yeah, we’ll have to see what’s doable, but I agree there’s room for

improvement here.

Ludo’.

On Wed, 2021-04-28 at 23:38 +0200, Ludovic Courtès wrote:

I'm confused.. The message says "Could not find build log for ...". Is

there any other place I can look?

Thank you!

Kind regards,

Roel Janssen

Hi,

Roel Janssen <roel@gnu.org> skribis:

“Could not find build log” typically happens if you’re talking to a

remote daemon, via GUIX_DAEMON_SOCKET. In that case, the build log is

in /var/log/guix/drvs (or similar) on the machine where the daemon is

running.

HTH!

Ludo’.