Our git just broke

[Ben Woodcroft]

Hi,

I cannot currently build git on the master branch. I bisected and got to 
this commit. I had a quick look but couldn't see what the problem was. 
The new package builds fine. Can someone take a look please?


b3885778e8e438e8526a8ee9e96072fd00f5cae5 is the first bad commit
commit b3885778e8e438e8526a8ee9e96072fd00f5cae5
Author: ng0 <address@hidden>
Date:   Wed Aug 10 10:04:29 2016 +0000

    gnu: Add stagit.

    * gnu/packages/version-control.scm (stagit): New variable.

    Signed-off-by: Leo Famulari <address@hidden>

Problem:

$ ./pre-inst-env guix build git

Backtrace:

In ice-9/boot-9.scm:

2401: 19 [save-module-excursion #<procedure 1e2a940 at 
ice-9/boot-9.scm:4045:3 ()>]

4050: 18 [#<procedure 1e2a940 at ice-9/boot-9.scm:4045:3 ()>]
1724: 17 [%start-stack load-stack ...]
1729: 16 [#<procedure 1e41ea0 ()>]
In unknown file:
   ?: 15 [primitive-load "/home/ben/git/guix/scripts/guix"]
In guix/ui.scm:
1190: 14 [run-guix-command build "git"]
In ice-9/boot-9.scm:
 157: 13 [catch srfi-34 #<procedure 318ef40 at guix/ui.scm:423:2 ()> ...]
 157: 12 [catch system-error ...]
In guix/scripts/build.scm:
 669: 11 [#<procedure 3298ed0 at guix/scripts/build.scm:658:2 ()>]
 607: 10 [options->derivations #<build-daemon 256.15 2891a80> (# # # # 
...)]
In srfi/srfi-1.scm:
 646: 9 [append-map #<procedure 2891300 at 
guix/scripts/build.scm:607:16 (expr)> #]
 578: 8 [map #<procedure 2891300 at guix/scripts/build.scm:607:16 
(expr)> (#)]
In guix/scripts/build.scm:
 612: 7 [#<procedure 2891300 at guix/scripts/build.scm:607:16 (expr)> #]
In guix/packages.scm:
 749: 6 [cache! #<weak-key-hash-table 25adec0 396/443> # # ...]
1053: 5 [thunk]
 985: 4 [bag->derivation # # #]
In srfi/srfi-1.scm:
 576: 3 [map #<procedure 5246660 at guix/packages.scm:987:30 
(t-1050355)> #]
In guix/packages.scm:
 809: 2 [expand-input # # # ...]
In guix/store.scm:
1112: 1 [#<procedure 25ae920 at guix/store.scm:1111:26 (store . args)> # 
# ...]
In unknown file:
   ?: 0 [#f # "x86_64-linux" #f]

ERROR: In procedure #f:
ERROR: Wrong type to apply: #f