make[2]: Entering directory `/Scratch/john/guix-dev'
/bin/mkdir -p `dirname "guix/scripts/build.go"` ;                       \
        LC_ALL=C                                                        \
        ./pre-inst-env                                  \
        /usr/bin/guild compile -L "." -L "/home/john/guix"      \
          -Wformat -Wunbound-variable -Warity-mismatch                  \
          --target="i686-pc-linux-gnu"                                          \
          -o "guix/scripts/build.go" "/home/john/guix/guix/scripts/build.scm"
Backtrace:
In ice-9/boot-9.scm:
2772: 19 [try-module-autoload (guix build download) #f]
2111: 18 [save-module-excursion #<procedure 9051888 at ice-9/boot-9.scm:2773:17 ()>]
2783: 17 [#<procedure 9051888 at ice-9/boot-9.scm:2773:17 ()>]
In unknown file:
   ?: 16 [primitive-load-path "guix/build/download" #f]
In ice-9/eval.scm:
 480: 15 [#<procedure 88a36c0 at ice-9/eval.scm:474:4 (exp)> #]
In ice-9/psyntax.scm:
1111: 14 [expand-top-sequence (#) () (#) ...]
1078: 13 [#<procedure 8beaae0 at ice-9/psyntax.scm:1077:36 ()>]
1621: 12 [expand-simple-lambda (# . #) () (()) ...]
1542: 11 [parse ((# . #)) (#(syntax-object log # ...)) ...]
In ice-9/boot-9.scm:
 545: 10 [map #<procedure 8b846e0 at ice-9/psyntax.scm:1543:66 (x)> ((# . #))]
In ice-9/psyntax.scm:
2130: 9 [expand-let (let # # # ...) (# # #) (# # #) ...]
In ice-9/boot-9.scm:
 545: 8 [map #<procedure 8b846a0 at ice-9/psyntax.scm:2130:49 (x)> (#)]
In ice-9/psyntax.scm:
1267: 7 [expand (make-session connection-end/client) (# # #) (# # #) ...]
1196: 6 [syntax-type (make-session connection-end/client) (# # #) (# # #) ...]
 582: 5 [syntax-type make-session (# # #) (# # #) ...]
 292: 4 [get-global-definition-hook make-session (hygiene guix build download)]
In unknown file:
   ?: 3 [module-variable #<directory (guix build download) 90f9120> make-session]
In ice-9/boot-9.scm:
2718: 2 [b #<autoload (gnutls) 8ee2000> make-session #f]
In unknown file:
   ?: 1 [scm-error misc-error #f ...]
In ice-9/boot-9.scm:
 106: 0 [#<procedure 89d3440 at ice-9/boot-9.scm:97:6 (thrown-k . args)> misc-error ...]

ice-9/boot-9.scm:106:20: In procedure #<procedure 89d3440 at ice-9/boot-9.scm:97:6 (thrown-k . args)>:
ice-9/boot-9.scm:106:20: missing interface for module (gnutls)
make[2]: *** [guix/scripts/build.go] Error 1