substitute: 
substitute: updating substitutes from 'https://ci.guix.gnu.org'...   0.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: 
substitute: updating substitutes from 'https://substitutes.nonguix.org'...   0.0%
substitute: updating substitutes from 'https://substitutes.nonguix.org'... 100.0%
substitute: 
substitute: updating substitutes from 'https://ci.guix.gnu.org'...   0.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: 
substitute: updating substitutes from 'https://substitutes.nonguix.org'...   0.0%
substitute: updating substitutes from 'https://substitutes.nonguix.org'... 100.0%
fetching path `/gnu/store/pmlg90nziva9f09r25m1558h1p2pfgz5-steam-1.0.0.74-builder'...
@ substituter-started /gnu/store/pmlg90nziva9f09r25m1558h1p2pfgz5-steam-1.0.0.74-builder substitute
Downloading https://substitutes.nonguix.org/nar/zstd/pmlg90nziva9f09r25m1558h1p2pfgz5-steam-1.0.0.74-builder...

 steam-1.0.0.74-builder  704B            0B/s 00:00 [                  ]   0.0%
 steam-1.0.0.74-builder  704B        849KiB/s 00:00 [##################] 100.0%
 steam-1.0.0.74-builder  704B        424KiB/s 00:00 [##################] 100.0%

@ substituter-succeeded /gnu/store/pmlg90nziva9f09r25m1558h1p2pfgz5-steam-1.0.0.74-builder
fetching path `/gnu/store/a2gm4sq8ip8bd2yjxhyyix784baj8im5-steam-1.0.0.74.drv'...
@ substituter-started /gnu/store/a2gm4sq8ip8bd2yjxhyyix784baj8im5-steam-1.0.0.74.drv substitute
Downloading https://substitutes.nonguix.org/nar/zstd/a2gm4sq8ip8bd2yjxhyyix784baj8im5-steam-1.0.0.74.drv...

 steam-1.0.0.74.drv  644B                0B/s 00:00 [                  ]   0.0%
 steam-1.0.0.74.drv  644B            1.3MiB/s 00:00 [##################] 100.0%
 steam-1.0.0.74.drv  644B            693KiB/s 00:00 [##################] 100.0%

@ substituter-succeeded /gnu/store/a2gm4sq8ip8bd2yjxhyyix784baj8im5-steam-1.0.0.74.drv
substitute: 
substitute: updating substitutes from 'https://ci.guix.gnu.org'...   0.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: 
substitute: updating substitutes from 'https://substitutes.nonguix.org'...   0.0%
substitute: updating substitutes from 'https://substitutes.nonguix.org'... 100.0%
building path(s) `/gnu/store/r6qqpn5b5la0imrmqjfa7ziggdqmgkvc-steam-1.0.0.74'
|   @ build-started /gnu/store/a2gm4sq8ip8bd2yjxhyyix784baj8im5-steam-1.0.0.74.drv - x86_64-linux /var/log/guix/drvs/a2//gm4sq8ip8bd2yjxhyyix784baj8im5-steam-1.0.0.74.drv.bz2 10427
@ build-succeeded /gnu/store/a2gm4sq8ip8bd2yjxhyyix784baj8im5-steam-1.0.0.74.drv -