Unable to build std_data_json with LDC 0.14.0

[Entusiastic user via digitalmars-d-ldc]

I am having problems building std_data_json [1] with LDC 0.14.0. 
DMD 2.066.0
seems to work fine (all unit tests pass). I was suggested [2] 
that link-time stripping of dead code (--gc-sections) can be the 
cause, but "-disable-linker-strip-dead" flag didn't help. Any 
ideas would be useful.

I am using Ubuntu 13.10 (Linux 3.11.0-15-generic x86_64).

Master was at 6a9f8e62e456c3601fe8ff2e1fbb640f38793d08.
$ dub fetch std_data_json --version=~master
$ cd std_data_json-master/
$ dub test --compiler=ldc2

Generating test runner configuration '__test__library__' for
'library' (library).
Building std_data_json ~master configuration "__test__library__",
build type unittest.
Running ldc2...
source/stdx/data/json/parser.d(77): Error: safe function
'stdx.data.json.parser.__unittestL68_22' cannot call system
function 'object.AssociativeArray!(string,
JSONValue).AssociativeArray.length'
source/stdx/data/json/parser.d(124): Error: safe function
'stdx.data.json.parser.__unittestL116_24' cannot call system
function 'object.AssociativeArray!(string,
JSONValue).AssociativeArray.length'
source/stdx/data/json/parser.d(341): Error: function
stdx.data.json.parser.JSONParserRange!(JSONLexerRange!string).JSONParserRange.opAssign
is not callable because it is annotated with @disable
source/stdx/data/json/parser.d(341): Error: safe function
'stdx.data.json.parser.__unittestL318_32' cannot call system
function
'stdx.data.json.parser.JSONParserRange!(JSONLexerRange!string).JSONParserRange.opAssign'
source/stdx/data/json/parser.d(633): Error: function
stdx.data.json.lexer.JSONToken.opAssign is not callable because
it is annotated with @disable
source/stdx/data/json/parser.d(633): Error:
'stdx.data.json.lexer.JSONToken.opAssign' is not nothrow
source/stdx/data/json/parser.d(630): Error: function
'stdx.data.json.parser.JSONParserNode.literal' is nothrow yet may
throw
FAIL
.dub/build/__test__library__-unittest-linux.posix-x86_64-ldc2-0F620B217010475A5A4E545A57CDD09A/
__test__library__ executable
Error executing command test: ldc2 failed with exit code 1.

[1] http://forum.dlang.org/thread/lt5s76$is$1@digitalmars.com
[2] 
http://forum.dlang.org/thread/lt5s76$is$1@digitalmars.com?page=12#post-lthbbk:241sbk:241:40digitalmars.com

Thanks