bug#31740: guix pull failed with syntax error.

[Fis Trivial]

$guix --version

guix (GNU Guix) 909301591d21d3879276e4ede3cebdcc867184f2
Copyright (C) 2018 the Guix authors
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.


Actually this is the second time I bumped into this bug. It seems
non-deterministic, try it a few times might make it right. Here is the
the error message with downloading and substituting stripped out:

Updating from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
Building from Git commit 116ca65b583ba4e404289f1481dc3a3ffef1c3dd...
substitute: updating list of substitutes from 'https://mirror.hydra.gnu.org'... 
100.0%
The following derivations will be built:
   /gnu/store/r195brsmnb3jgqicj7ma681yaschgyaj-compute-guix-derivation.drv
   /gnu/store/facfypp0m3g948fxzs9xg07fa45kckvk-module-import.drv
   /gnu/store/ghsnz9qn4ycg906a14glcxmxmmmh44vx-module-import-compiled.drv
;;; Failed to autoload make-session in (gnutls):
;;; missing interface for module (gnutls)
;;; Failed to autoload connection-end/client in (gnutls):
;;; missing interface for module (gnutls)
;;; ./gnu/packages.scm:92:33: warning: non-literal format string
;;; ./gnu/packages.scm:108:16: warning: non-literal format string
;;; Failed to autoload make-session in (gnutls):
;;; missing interface for module (gnutls)
;;; Failed to autoload connection-end/client in (gnutls):
;;; missing interface for module (gnutls)
;;; Failed to autoload make-session in (gnutls):
;;; missing interface for module (gnutls)
;;; Failed to autoload make-session in (gnutls):
;;; missing interface for module (gnutls)
;;; Failed to autoload connection-end/client in (gnutls):
;;; missing interface for module (gnutls)
;;; ./guix/build/download.scm:176:4: warning: possibly unbound variable 
`set-certificate-credentials-x509-trust-data!'
;;; ./guix/build/download.scm:182:15: warning: possibly unbound variable 
`make-certificate-credentials'
;;; ./guix/build/download.scm:191:20: warning: possibly unbound variable 
`x509-certificate-format/pem'
;;; ./guix/build/download.scm:199:2: warning: possibly unbound variable 
`session-peer-certificate-chain'
;;; ./guix/build/download.scm:201:5: warning: possibly unbound variable 
`import-x509-certificate'
;;; ./guix/build/download.scm:201:5: warning: possibly unbound variable 
`x509-certificate-format/der'
;;; ./guix/build/download.scm:210:10: warning: possibly unbound variable 
`x509-certificate-matches-hostname?'
;;; ./guix/build/download.scm:215:2: warning: possibly unbound variable 
`peer-certificate-status'
;;; ./guix/build/download.scm:234:13: warning: possibly unbound variable 
`certificate-status->string'
;;; ./guix/build/download.scm:229:20: warning: possibly unbound variable 
`x509-certificate-dn'
;;; ./guix/build/download.scm:246:18: warning: possibly unbound variable 
`make-session'
;;; ./guix/build/download.scm:246:18: warning: possibly unbound variable 
`connection-end/client'
;;; ./guix/build/download.scm:255:8: warning: possibly unbound variable 
`set-session-server-name!'
;;; ./guix/build/download.scm:255:8: warning: possibly unbound variable 
`server-name-type/dns'
;;; ./guix/build/download.scm:259:4: warning: possibly unbound variable 
`set-session-transport-fd!'
;;; ./guix/build/download.scm:260:4: warning: possibly unbound variable 
`set-session-default-priority!'
;;; ./guix/build/download.scm:266:4: warning: possibly unbound variable 
`set-session-priorities!'
;;; ./guix/build/download.scm:268:4: warning: possibly unbound variable 
`set-session-credentials!'
;;; ./guix/build/download.scm:272:34: warning: possibly unbound variable 
`make-certificate-credentials'
;;; ./guix/build/download.scm:280:8: warning: possibly unbound variable 
`handshake'
;;; ./guix/build/download.scm:282:15: warning: possibly unbound variable 
`error/warning-alert-received'
;;; ./guix/build/download.scm:287:23: warning: possibly unbound variable 
`alert-description->string'
;;; ./guix/build/download.scm:287:50: warning: possibly unbound variable 
`alert-get'
;;; ./guix/build/download.scm:288:15: warning: possibly unbound variable 
`handshake'
;;; ./guix/build/download.scm:303:18: warning: possibly unbound variable 
`session-record-port'
;;; Failed to autoload make-session in (gnutls):
;;; missing interface for module (gnutls)
;;; Failed to autoload make-session in (gnutls):
;;; missing interface for module (gnutls)
;;; Failed to autoload connection-end/client in (gnutls):
;;; missing interface for module (gnutls)
;;; ./guix/discovery.scm:89:22: warning: non-literal format string
;;; ./guix/ui.scm:168:5: warning: non-literal format string
;;; ./guix/ui.scm:313:2: warning: non-literal format string
;;; ./guix/ui.scm:331:22: warning: non-literal format string
;;; ./guix/ui.scm:359:13: warning: non-literal format string
;;; ./guix/ui.scm:352:7: warning: non-literal format string
;;; ./guix/ui.scm:347:11: warning: non-literal format string
;;; ./guix/ui.scm:383:7: warning: non-literal format string
;;; ./guix/ui.scm:467:2: warning: non-literal format string
;;; ./guix/ui.scm:469:2: warning: non-literal format string
;;; ./guix/ui.scm:577:22: warning: non-literal format string
;;; ./guix/ui.scm:580:22: warning: non-literal format string
;;; ./guix/ui.scm:690:13: warning: non-literal format string
;;; ./guix/ui.scm:865:14: warning: non-literal format string
;;; ./guix/ui.scm:885:14: warning: non-literal format string
;;; ./guix/ui.scm:1389:18: warning: non-literal format string
;;; ./guix/ui.scm:1399:10: warning: non-literal format string
;;; ./guix/ui.scm:1442:2: warning: non-literal format string
;;; ./guix/ui.scm:1458:2: warning: non-literal format string
;;; ./guix/ui.scm:1488:2: warning: non-literal format string
;;; ./guix/ui.scm:1517:2: warning: non-literal format string
;;; ./guix/ui.scm:1520:2: warning: non-literal format string
;;; ./guix/ui.scm:1539:8: warning: non-literal format string
;;; ./guix/ui.scm:1577:5: warning: non-literal format string
;;; ./guix/ui.scm:1569:5: warning: non-literal format string
substitute: updating list of substitutes from 'https://mirror.hydra.gnu.org'... 
100.0%%
substitute: updating list of substitutes from 'https://mirror.hydra.gnu.org'... 
100.0%%

........ (stripped out) ...........

[ 1/ 6] Compiling './guix/build/compile.scm'...
[ 2/ 6] Compiling './guix/build/utils.scm'...
[ 3/ 6] Compiling './guix/memoization.scm'...
[ 4/ 6] Compiling './guix/modules.scm'...
[ 5/ 6] Compiling './guix/profiling.scm'...
[ 6/ 6] Compiling './guix/sets.scm'...
compiling...    100.0% of 1 files
compiling...     10.0% of 40 filesIn ice-9/psyntax.scm:
  1679:45 19 (parse _ _ _ _ _ _ _)
In ice-9/boot-9.scm:
   222:17 18 (map1 (((("l-10a3c941d34314a1-35bb" macro . #<procedure 197b840 at 
ice-9/eval.scm:333:13 (a)>) ("placeholder" placeholder) 
("l-10a3c941d34314a1-35b7" lexical . #) ("l-10?" . #) ?) . #)))
In ice-9/psyntax.scm:
  2338:44 17 (expand-let _ _ _ ((line . 1347) (column . 0) (filename . 
"guix/store.scm")) (hygiene guix store) #<procedure build-let (src ids vars 
val-exps body-exp)> _ _ ((#<syntax match-drop?> ?)))
  1679:45 16 (parse _ _ _ _ _ _ _)
In ice-9/boot-9.scm:
   222:17 15 (map1 (((("placeholder" placeholder) ("l-10a3c941d34314a1-35d3" 
lexical . tail-10a3c941d34314a1-35d4) ("l-10a3c941d34314a1-35bb" macro . 
#<procedure 197b840 at ice-9/eval.scm:?>) ?) ?)))
In ice-9/psyntax.scm:
  1484:23 14 (_ _ _)
In ice-9/boot-9.scm:
   222:29 13 (map1 (#<syntax (#<syntax mproc> #<syntax head>)> #<syntax 
(#<syntax lambda> (#<syntax result>) (#<syntax if> #<syntax result> (#<syntax 
return> #<syntax result>) (#<syntax loop> #<?>))
   222:17 12 (map1 (#<syntax (#<syntax lambda> (#<syntax result>) (#<syntax if> 
#<syntax result> (#<syntax return> #<syntax result>) (#<syntax loop> #<syntax 
tail>)))>))
In ice-9/psyntax.scm:
  1789:11 11 (lp ((#<syntax if> #<syntax result> (#<syntax return> #<syntax 
result>) (#<syntax loop> #<syntax tail>))) ())
  1679:45 10 (parse _ _ _ _ _ _ _)
In ice-9/boot-9.scm:
   222:17  9 (map1 (((("placeholder" placeholder) ("l-10a3c941d34314a1-35f3" 
lexical . result-10a3c941d34314a1-35f2) ("placeholder" placeholder) 
("l-10a3c941d34314a1-35d3" lexical . #) # # ?) . #)))
In ice-9/psyntax.scm:
  1407:23  8 (_ _ (#<syntax return> #<syntax result>) (#<syntax loop> #<syntax 
tail>))
  1348:32  7 (syntax-type (#<syntax return> #<syntax result>) (("placeholder" 
placeholder) ("l-10a3c941d34314a1-35f3" lexical . result-10a3c941d34314a1-35f2) 
("placeholder" placeholder) (# . #) ?) ?)
compiling...     12.5% of 40 files  1559:32  6 (expand-macro #<procedure 
1a53c00 at ice-9/eval.scm:333:13 (a)> _ _ _ _ _ _)
In ice-9/boot-9.scm:
   752:25  5 (dispatch-exception _ _ _)
   751:25  4 (dispatch-exception 1 syntax-error (return "return used outside of 
'with-monad'" ((line . 1347) (column . 0) (filename . "guix/store.scm")) 
(return result) #f))
In ./guix/build/compile.scm:
    129:6  3 (_ _ . _)
In ice-9/boot-9.scm:
    829:9  2 (catch #t #<procedure 1ae6e80 at ./guix/build/compile.scm:129:6 
()> #<procedure 7ffff2315810 at ./guix/build/compile.scm:129:6 args> _)
In ./guix/build/compile.scm:
   132:21  1 (_)
In unknown file:
           0 (make-stack #t)
./guix/build/compile.scm:132:21: Syntax error:
guix/store.scm:1348:0: return: return used outside of 'with-monad' in form 
(return result)
builder for `/gnu/store/9qm694macj2s9a528nshbzgqca19njdx-guix-core.drv' failed 
with exit code 1
cannot build derivation 
`/gnu/store/fjvfl5d1v6jwlf9r8ajaifxp3zn7a4w1-guix-116ca65b5.drv': 1 
dependencies couldn't be built
guix pull: error: build failed: build of 
`/gnu/store/fjvfl5d1v6jwlf9r8ajaifxp3zn7a4w1-guix-116ca65b5.drv' failed


----------------------------------------------------------------------

A second pull succeeded:

$ guix pull
Updating from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
Building from Git commit 116ca65b583ba4e404289f1481dc3a3ffef1c3dd...
Computing Guix derivation for 'x86_64-linux'... |
The following derivations will be built:
   /gnu/store/fjvfl5d1v6jwlf9r8ajaifxp3zn7a4w1-guix-116ca65b5.drv
   /gnu/store/9qm694macj2s9a528nshbzgqca19njdx-guix-core.drv
   /gnu/store/g04imaadhllvb0qp7s0h68nzy47h62pn-guix-system.drv
   /gnu/store/ggc1i9irm2qqkkqnari31hah0i3x2syy-guix-extra.drv
   /gnu/store/hgp4i9sq96j94hlblqiamdsg5h4dhxdc-guix-packages-base.drv
   /gnu/store/jacwncra81r180xmvxhda8hlaifnga1p-guix-packages.drv
   /gnu/store/x6wd9ny8r4pg73hmbv2p2m1m1qp711rq-guix-cli.drv
compiling...    100.0% of 40 files
loading...       97.2% of 109 filesrandom seed for tests: 1528319365
compiling...    100.0% of 109 files
compiling...    100.0% of 229 files
compiling...    100.0% of 179 files
compiling...    100.0% of 66 files
compiling...    100.0% of 37 files
updated GNU Guix successfully deployed under `/home/fis/.config/guix/latest'