Hi Guix! It seems that build logs are not copied over from build nodes, leading to amusing (but alas quite useless) output like: ~ λ curl $(guix build zstd --log-file) substitute: updating substitutes from 'http://141.80.167.131'... 100.0% fetching path `/gnu/store/rx8ja2y7xfrq19x8hr7ly8sq661bwpaw-zstd-1.5.0.drv'... @ substituter-started /gnu/store/rx8ja2y7xfrq19x8hr7ly8sq661bwpaw-zstd-1.5.0.drv substitute Downloading http://141.80.167.131/nar/lzip/rx8ja2y7xfrq19x8hr7ly8sq661bwpaw-zstd-1.5.0.drv... zstd-1.5.0.drv 280KiB/s 00:00 | 1KiB transferred @ substituter-succeeded /gnu/store/rx8ja2y7xfrq19x8hr7ly8sq661bwpaw-zstd-1.5.0.drv substitute: updating substitutes from 'http://141.80.167.131'... 100.0% substitute: updating substitutes from 'http://141.80.167.131'... 100.0% fetching path `/gnu/store/wa5pngf2lywgi8vd8k9b1k13wp2acvi4-zstd-1.5.0-static'... @ substituter-started /gnu/store/wa5pngf2lywgi8vd8k9b1k13wp2acvi4-zstd-1.5.0-static substitute fetching path `/gnu/store/bn6pk5zjjdpdfzb6yfr5psi9pji9w51n-zstd-1.5.0'... @ substituter-started /gnu/store/bn6pk5zjjdpdfzb6yfr5psi9pji9w51n-zstd-1.5.0 substitute Downloading http://141.80.167.131/nar/lzip/wa5pngf2lywgi8vd8k9b1k13wp2acvi4-zstd-1.5.0-static... zstd-1.5.0-static 1.4MiB/s 00:00 | 64KiB transferredDownloading http://141.80.167.131/nar/lzip/bn6pk5zjjdpdfzb6yfr5psi9pji9w51n-zstd-1.5.0... zstd-1.5.0 476KiB 4.5MiB/s 00:00 [##################] 100.0% @ substituter-succeeded /gnu/store/bn6pk5zjjdpdfzb6yfr5psi9pji9w51n-zstd-1.5.0 zstd-1.5.0-static 1.3MiB/s 00:00 | 405KiB transferred @ substituter-succeeded /gnu/store/wa5pngf2lywgi8vd8k9b1k13wp2acvi4-zstd-1.5.0-static ~ λ Kind regards, T G-R