std.exception.ErrnoException@std/stdio.d(461): Could not close pipe `' (No such file or directory)
----------------
5   file                                0x0010aa66 void std.stdio.File.close() + 170
6   file                                0x001048e5 std.process.Pid std.process.spawnProcessImpl(immutable(char)[], const(immutable(char)[][]), const(char**), std.stdio.File, std.stdio.File, std.stdio.File, std.process.Config) + 725
7   file                                0x00104593 std.process.Pid std.process.spawnProcess(immutable(char)[], const(immutable(char)[][]), std.stdio.File, std.stdio.File, std.stdio.File, std.process.Config) + 147
8   file                                0x00105623 std.process.ProcessPipes std.process.pipeProcess(immutable(char)[], immutable(char)[][], std.process.Redirect) + 1183
9   file                                0x00105169 std.process.ProcessPipes std.process.pipeProcess(immutable(char)[], std.process.Redirect) + 117
10  file                                0x00105b07 std.typecons.Tuple!(int, "status", immutable(char)[], "output").Tuple std.process.execute(immutable(char)[]) + 31
11  file                                0x000bba1f void std.file.__unittestL2208_20() + 607
12  file                                0x000b8523 void std.file.__modtest() + 91
13  file                                0x000da481 extern (C) bool core.runtime.runModuleUnitTests().int __foreachbody320(ref object.ModuleInfo*) + 45
14  file                                0x000e9ac6 int rt.minfo.moduleinfos_apply(scope int delegate(ref object.ModuleInfo*)) + 66
15  file                                0x000da372 runModuleUnitTests + 134
16  file                                0x000e5461 extern (C) int rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).void runAll() + 41
17  file                                0x000e4fe0 extern (C) int rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).void tryExec(scope void delegate()) + 24
18  file                                0x000e4fae _d_run_main + 342
19  file                                0x000e4e51 main + 29
20  libdyld.dylib                       0x958d4725 start + 0
21  ???                                 0x00000001 0x0 + 1
make[1]: *** [generated/osx/debug/32/unittest/std/file] Error 1
make: *** [unittest] Error 2