python2-rpython failed to build

[hong li]

Hello,

I want to install python2-rpython 0.2.1 in guix, but the building
process failed with messages below.
I also checked the building history of the package, but found no
successful build in the output history.
https://data.guix.gnu.org/repository/1/branch/master/package/python2-rpython/output-history
Does anybody know how to fix this? Thanks in advance.

$ guix package -i python2 python2-rpython
The following packages will be installed:
   python2         2.7.17
   python2-rpython 0.2.1

substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
The following derivation will be built:
   /gnu/store/l37vwcricp91905rw19v6avgw86sbml1-python2-rpython-0.2.1.drv

1,2 MB will be downloaded
downloading from
https://ci.guix.gnu.org/nar/gzip/72fg0cnwzm6s6jlw2dvipxd1jwyf4z8v-python2-contextlib2-0.6.0.post1
...
 python2-contextlib2-0.6.0.post1  13KiB

                      2.1MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/nra2xdjpkqgingw6lynkdrrbkx2q8j0a-python2-funcsigs-1.0.2
...
 python2-funcsigs-1.0.2  18KiB

                      3.5MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/m6l9d71wipa0x6b6pcxz7kyiy02w8hyc-python2-importlib-metadata-1.5.0
...
 python2-importlib-metadata-1.5.0  40KiB

                      8.2MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/02mxrcvw1gvk9g03yvpf1bqqp5c9sawx-python2-importlib-resources-1.0.2
...
 python2-importlib-resources-1.0.2  30KiB

                      6.6MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/l6qbfg81np8vjl3whr9ingzbswb9pj7n-python2-mock-3.0.5
...
 python2-mock-3.0.5  51KiB

                     12.2MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/is78cy2wjk75diikpffwfhiyqv7ibgk1-python2-pathlib2-2.3.5
...
 python2-pathlib2-2.3.5  35KiB

                      8.0MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/f72hps00xyn3299fr887dgav7hbf49v1-python2-pluggy-0.13.1
...
 python2-pluggy-0.13.1  26KiB

                      6.2MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/qbix20f565276zgczpn9hqzv4c05hyx9-python2-pytest-bootstrap-4.6.11
...
 python2-pytest-bootstrap-4.6.11  450KiB

                      1.8MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/7sg0b53apa0vm18n3zd3d6087wcxvwx0-python2-six-1.14.0
...
 python2-six-1.14.0  21KiB

                      3.9MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/xxs4wa51yhzz5954433nc1ih4cqn2nkf-python2-zipp-1.0.0
...
 python2-zipp-1.0.0  5KiB

                      1.2MiB/s 00:00 [##################] 100.0%

downloading from
https://ci.guix.gnu.org/nar/gzip/wv6g6ja4xasf026qfm2ws69l3q2hq0yh-python2-pytest-4.6.11
...
 python2-pytest-4.6.11  450KiB

                      1.6MiB/s 00:00 [##################] 100.0%

building 
/gnu/store/l37vwcricp91905rw19v6avgw86sbml1-python2-rpython-0.2.1.drv...
/ 'check' phasebuilder for
`/gnu/store/l37vwcricp91905rw19v6avgw86sbml1-python2-rpython-0.2.1.drv'
failed with exit code 1
build of /gnu/store/l37vwcricp91905rw19v6avgw86sbml1-python2-rpython-0.2.1.drv
failed
View build log at
'/gnu/var/log/guix/drvs/l3/7vwcricp91905rw19v6avgw86sbml1-python2-rpython-0.2.1.drv'.
guix package: error: build of
`/gnu/store/l37vwcricp91905rw19v6avgw86sbml1-python2-rpython-0.2.1.drv'
failed

$ guix --version
guix (GNU Guix) 265e1858fb730bdc57c2059127109520bb2fc3cb
Copyright (C) 2020 the Guix authors
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.


with best regards,
Hong