Ran `make check` like this:

  cd git/guix
  git pull
  git show
  commit debf4179b4312ad3ea02f994154a2d989bc16089
  ...

  guix environment guix --ad-hoc help2man git strace
  ./bootstrap
  ./configure --localstatedir=/var
  make check

Test machine information:

  guix (GNU Guix) 20160910.14 [binary installation on top debian testing]

  guile (GNU Guile) 2.0.11
  GNU Make 4.2 (Built for x86_64-unknown-linux-gnu)
  libgcrypt version 1.7.3

  zlib Version: 1.2.8

  SQLite Version: 3.12.2
  libbz2 Version 1.0.6
  g++ (GCC) 6.2.0

(This is my first bug report, please point out if I missed out
something.)