Hi

I'm running guix from source in guixsd. 
sdb@antelope ~/src/guix$ ./pre-inst-env guix describe
Git checkout:
  repository: /home/sdb/src/guix
  branch: master
  commit: 3d53869e302540cb9a80cdcbbabea2b67200c0c5

This is the output of my config. (it is attached). My config does NOT
have ci.guix.info

sdb@antelope ~/src/guix$ ./pre-inst-env guix weather -m
~/config/os-manifest.scm
computing 414 package derivations for i686-linux...
looking for 588 store items on https://ci.guix.info...
updating substitutes from 'https://ci.guix.info'... 100.0%
https://ci.guix.info
  98.3% substitutes available (578 out of 588)
  567.3 MiB of nars (compressed)
  2,141.8 MiB on disk (uncompressed)
  0.013 seconds per request (7.4 seconds in total)
  79.2 requests per second
  'https://ci.guix.info/api/queue?nr=1000' returned 502 ("Bad Gateway")
   ^ could we hide this error if it does not matter for the results?

Forcing the --substitute-urls gives:

sdb@antelope ~/src/guix$ ./pre-inst-env guix weather -m
~/config/os-manifest.scm --substitute-urls="http://berlin.guixsd.org"
computing 414 package derivations for i686-linux...
looking for 588 store items on http://berlin.guixsd.org...
updating substitutes from 'http://berlin.guixsd.org'... 100.0%
http://berlin.guixsd.org
  98.3% substitutes available (578 out of 588)
  567.3 MiB of nars (compressed)
  2,141.8 MiB on disk (uncompressed)
  0.044 seconds per request (25.7 seconds in total)
  22.9 requests per second
  'http://berlin.guixsd.org/api/queue?nr=1000' returned 502 ("Bad
Gateway")

-- 
Cheers 
Swedebugia