guix (GNU Guix) 35d13aab7ebca187343c54b800711bfea02859b9
Guix System
build log attached

```
building /gnu/store/2hpqbgpqkx7zfry7fxz4m1jibbmbppij-python-pydevd-3.2.3.drv...
/ 'check' phasebuilder for `/gnu/store/2hpqbgpqkx7zfry7fxz4m1jibbmbppij-python-pydevd-3.2.3.drv' failed with exit code 1
build of /gnu/store/2hpqbgpqkx7zfry7fxz4m1jibbmbppij-python-pydevd-3.2.3.drv failed
View build log at '/var/log/guix/drvs/2h/pqbgpqkx7zfry7fxz4m1jibbmbppij-python-pydevd-3.2.3.drv.gz'.
cannot build derivation `/gnu/store/3b3j1iismdgajh04ip42bijqhrkq6vc5-python-jupyter-client-7.4.4.drv': 1 dependencies couldn't be built
cannot build derivation `/gnu/store/162r21i5a0x8r0fjmbssnv3i323q90xf-python-jupyter-server-2.14.0.drv': 1 dependencies couldn't be built
cannot build derivation `/gnu/store/sacgrk8cnwahb8d4idw7pvnf82sjixkh-python-nbconvert-7.16.4.drv': 1 dependencies couldn't be built
cannot build derivation `/gnu/store/cym6yawfkndp55iykmc9nl7x3w94927c-python-jupytext-1.15.0.drv': 1 dependencies couldn't be built
cannot build derivation `/gnu/store/c3kc94m3yf21zy6k467f1gwrhzb1pvqw-font-cozette-1.13.0.drv': 1 dependencies couldn't be built
guix package: error: build of `/gnu/store/c3kc94m3yf21zy6k467f1gwrhzb1pvqw-font-cozette-1.13.0.drv' failed
```

Most likely related to the font-cozette package by the looks of it.