When running `guix pull`, output like the following is common for me: $ guix pull Updating channel 'puzzlink' from Git repository at '/home/rob/guix-puzzlink'… […] Building from these channels: guix https://github.com/robx/guix.git 11f68b3 […] Computing Guix derivation for 'x86_64-linux'... | The following derivations will be built: /gnu/store/ym0l8rvnh3aa3qv8g3xgh1mszbhww8c2-elm.drv […] /gnu/store/dcxwfh37bn8r3h8s9w7wfq8yhzynqxx5-profile.drv The following profile hooks will be built: /gnu/store/biw1n2a956skpaa4m7rmka6j8h1clhmv-guix-package-cache.drv […] /gnu/store/kxrkynck33ypwyy09ypi2qm7737fsw28-fonts-dir.drv substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% building /gnu/store/wxfi8mdp11l5k4ngkbsy9apcg9h74jfk-guix-system.drv…
Either guix is making useless extra downloads or: (a) the substitute log message should be changed to differentiate between the different calls (b) there should be extra log messages before the substitute messages to indicate what guix is doing that causes the individual substitue messages.
