(address . bug-guix@gnu.org)
hello,
i have a bug on debian:
when power profile is set to power saving, guix pull fails after computing derivation:
```
Computing Guix derivation for 'x86_64-linux'... /
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 0.0%guix substitute: error: TLS error in procedure 'write_to_session_record_port': Error in the push function.
guix pull: error: `/gnu/store/...-guix-command substitute' died unexpectedly
```
this happens with the default ci substitute too
when guix pull is restarted, derivation is recomputed again, so this takes time to reproduce