emacs-elpy-1.35.0 build (check) failure

emacs-elpy-1.35.0 build (check) failure

[Sergiu Ivanov]

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Dear Guix,

Since a couple days (I first tried on Fri Oct 18) emacs-elpy is not
substituted and its build fails on my machine with an ert-runner related
exception:

error: in phase 'check': uncaught exception:
%exception #<&invoke-error program: "ert-runner" arguments: () exit-status: 255 term-signal: #f stop-signal: #f> 
phase `check' failed after 44.7 seconds
command "ert-runner" failed with status 255
build process 10 exited with status 256

I attach the full error log.

On the other hand, according to

https://data.guix.gnu.org/gnu/store/jfr2gbzczhw4q1bcbn66s2bwfw8p1hf4-emacs-elpy-1.35.0.drv

emacs-elpy builds fine on bordeaux.

I don't think I do/cause fancy modifications to the Emacs package in my
Guix Home configuration—I install everything Emacs- and Python-related
via specification->package, like so:

(packages
 (append (map specification->package
	      '(

		[...]

		;; Emacs
		"emacs" "emacs-magit" "emacs-guix" "emacs-rainbow-delimiters" "emacs-yasnippet"
		"emacs-auctex" "emacs-multiple-cursors" "emacs-racket-mode" "emacs-scribble-mode"
		"emacs-graphviz-dot-mode" "emacs-pdf-tools"
		"emacs-paredit" "emacs-helm" "emacs-markdown-mode" "emacs-emojify"
		"emacs-pulseaudio-control" "emacs-windsize" "emacs-smart-mode-line" "emacs-which-key"
		"emacs-ace-window" "emacs-expand-region" "emacs-origami-el" "emacs-bluetooth"
		"emacs-org-tree-slide" "emacs-plantuml-mode" "emacs-eat" "emacs-latex-extra"
		"emacs-osm" "emacs-docker" "emacs-dockerfile-mode" "emacs-elpy" "emacs-ob-racket"
		"emacs-company" "emacs-hy-mode" "emacs-helm-swoop"

		"emacs-doom-themes" "emacs-solarized-theme" "emacs-zenburn-theme" "emacs-monokai-theme"
		"emacs-moe-theme-el" "emacs-alect-themes" "emacs-dream-theme" "emacs-ample-theme"

		;; Python
		"python" "python-jedi" "python-black" "python-autopep8" "python-yapf"

		[...]

		))))

I've just realized that somebody opened an issue here:
https://issues.guix.gnu.org/74048 . The build log looks similar to mine.

Also, there is this issue https://issues.guix.gnu.org/46516 , but there
ert-runner at least seems to start doing something, while in our cases
it seems it just can't start.

I'm not using Elpy actively at the moment, so my fix was just removing
"emacs-elpy" from my home configuration.  I guess an actual workaround
would consist in temporarily removing the check phase from emacs-elpy.

I'd be glad to help debug the issue.

Thanks!

-
Sergiu

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