FYI, (brand new?) test-lock failure on Darwin, via nixos/hydra

[Jim Meyering]

At least on darwin, using the very latest from gnulib,

  http://hydra.nixos.org/build/1731154

that shows how grep's gnulib-tests exposed one failure:

building test-lock.log
/bin/sh: line 1: 69786 Abort trap              EXEEXT='' srcdir='.' 
LOCALE_FR='fr_FR.ISO8859-1' LOCALE_FR_UTF8='fr_FR.UTF-8' 
LOCALE_FR='fr_FR.ISO8859-1' LOCALE_TR_UTF8='none' LOCALE_FR='fr_FR.ISO8859-1' 
LOCALE_FR_UTF8='fr_FR.UTF-8' LOCALE_JA='ja_JP.eucJP' 
LOCALE_ZH_CN='zh_CN.GB18030' LOCALE_TR_UTF8='none' LOCALE_FR_UTF8='fr_FR.UTF-8' 
LOCALE_FR='fr_FR.ISO8859-1' LOCALE_FR_UTF8='fr_FR.UTF-8' 
LOCALE_JA='ja_JP.eucJP' LOCALE_ZH_CN='zh_CN.GB18030' 
LOCALE_FR_UTF8='fr_FR.UTF-8' LOCALE_ZH_CN='zh_CN.GB18030' 
LOCALE_FR='fr_FR.ISO8859-1' LOCALE_FR_UTF8='fr_FR.UTF-8' 
LOCALE_FR='fr_FR.ISO8859-1' LOCALE_FR_UTF8='fr_FR.UTF-8' 
LOCALE_JA='ja_JP.eucJP' LOCALE_ZH_CN='zh_CN.GB18030' 
abs_aux_dir='/private/tmp/nix-build-lhwwksswzz529m3886kh5hppjwwp93dw-grep-2.10.57-0dc6.drv-0/grep-2.10.57-0dc6/build-aux'
 
abs_aux_dir='/private/tmp/nix-build-lhwwksswzz529m3886kh5hppjwwp93dw-grep-2.10.57-0dc6.drv-0/grep-2.10.57-0dc6/build-aux'
 MAKE='make' LOCALE_FR='fr_FR.ISO8859-1' LOCALE_FR_UTF8='fr_FR.UTF-8' 
LOCALE_JA='ja_JP.eucJP' LOCALE_ZH_CN='zh_CN.GB18030' "$tst" > test-lock.log-t 
2>&1
FAIL: test-lock

Sorry, but I can't investigate right now.