Can't build phobos

[Freddy via Digitalmars-d-learn]

I am currently working on a phobos fork to include associative
ranges, however the unittest fail when i try to build. How am a
supposed test any unittests that i add.
link:https://github.com/Superstar64/phobos/tree/associative_ranges

$ ../dmd/src/dmd |head -1
DMD32 D Compiler v2.066-devel-9d6cef9


0.030s PASS std.algorithm
0.023s PASS std.array
0.034s PASS std.ascii
0.001s PASS std.base64
0.006s PASS std.bigint
0.003s PASS std.bitmanip
0.000s PASS std.complex
0.002s PASS std.concurrency
0.023s PASS std.conv
0.000s PASS std.cstream
0.001s PASS std.csv
****** FAIL std.datetime
core.exception.AssertError at std/datetime.d(1398): [2012-Apr-30
01:00:00] [2012-Apr-30 00:00:00]
----------------
generated/linux/debug/32/unittest/libphobos2-ut.so(void
std.datetime.SysTime.__unittestL1363_26()+0xd08) [0x41b35ea0]
generated/linux/debug/32/unittest/libphobos2-ut.so(void
std.datetime.__modtest()+0xdd) [0x41d6e6ed]
generated/linux/debug/32/unittest/test_runner(bool
test_runner.tester()+0x104) [0x8049524]
generated/linux/debug/32/unittest/libphobos2-ut.so(runModuleUnitTests+0xd1)
[0x42cce4c1]
generated/linux/debug/32/unittest/libphobos2-ut.so(void
rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).runAll()+0x2d) [0x42cedd45]
generated/linux/debug/32/unittest/libphobos2-ut.so(void
rt.dmain2._d_run_main(int, char**, extern (C) int
function(char[][])*).tryExec(scope void delegate())+0x2a)
[0x42cedcea]
generated/linux/debug/32/unittest/libphobos2-ut.so(_d_run_main+0x152)
[0x42cedc5a]
generated/linux/debug/32/unittest/test_runner(main+0x14)
[0x804968c]
/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x430a2a83]