I was able to reproduce it on a fresh install of Guix 1.3.0. I just downloaded the image, installed with graphical installer, and ran "guix pull" and "guix system reconfigure /etc/config.scm" on the freshly installed system. Then, "guix install lsh" checks for substitues and falls back to building, which results in the attached error message. I also tried installing lsh in the QCOW2 image, which got it installed from substitutes without an issue. It seems that something in build- dependancies needs to be updated.
Roman
building /gnu/store/pbf00n0wm3kjs2gg2mnjf0i2sh4vfjjn-lsh-2.1.drv... | 'build' phasebuilder for `/gnu/store/pbf00n0wm3kjs2gg2mnjf0i2sh4vfjjn-lsh-2.1.drv' failed with exit code 1 build of /gnu/store/pbf00n0wm3kjs2gg2mnjf0i2sh4vfjjn-lsh-2.1.drv failed View build log at '/var/log/guix/drvs/pb/f00n0wm3kjs2gg2mnjf0i2sh4vfjjn-lsh-2.1.drv.gz'. guix install: error: build of `/gnu/store/pbf00n0wm3kjs2gg2mnjf0i2sh4vfjjn-lsh-2.1.drv' failed
f00n0wm3kjs2gg2mnjf0i2sh4vfjjn-lsh-2.1.drv.xz
Description: application/xz
