[2016-01-15 13:53:20] EXCEPTION: (CommandException) Command failed with error #255!
COMMAND
set HGPLAIN=1 & hg diff --git -U32767 --rev "" -- ""

Dev OS...............: Windows 10
Dev HG version.......: 3.6.3
Dev PHP version......: 7.0.2
Dev Arc version......: 2016-01-16
Dev Phutil version...: 2016-01-16
Repo accessing method: SSH
Phab Server OS.......: Ubuntu 14.04.2
Phab Web Server......: Apache2

D:\Work Space\Projects\test-tt>arc diff --trace
 ARGV  "D:\Work Space\Development Tools\phabricator\arcanist\bin\..\scripts\arcanist.php" "diff" "--trace"
 LOAD  Loaded "phutil" from "D:\Work Space\Development Tools\phabricator\libphutil\src".
 LOAD  Loaded "arcanist" from "D:\Work Space\Development Tools\phabricator\arcanist\src".
Config: Reading user configuration file "C:\Users\Efkan\AppData\Roaming/.arcrc"...
Config: Did not find system configuration at "C:\ProgramData\Phabricator/Arcanist/config".
Working Copy: Reading .arcconfig from "D:\Work Space\Projects\test-tt/.arcconfig".
Working Copy: Path "D:\Work Space\Projects\test-tt" is part of `hg` working copy "D:\Work Space\Projects\test-tt".
Working Copy: Project root is at "D:\Work Space\Projects\test-tt".
Config: Did not find local configuration at "D:\Work Space\Projects\test-tt\.hg\arc/config".
>>> [0] <conduit> user.whoami() <bytes = 117>
>>> [1] <http> https://phabricator.mydom.com/api/user.whoami
<<< [1] <http> 670,646 us
<<< [0] <conduit> 673,433 us
>>> [2] <exec> $ set HGPLAIN=1 & hg status
<<< [2] <exec> 124,639 us
>>> [3] <event> diff.didCollectChanges <listeners = 0>
<<< [3] <event> 1,581 us
>>> [4] <exec> $ set HGPLAIN=1 & hg help phase
<<< [4] <exec> 145,654 us
>>> [5] <exec> $ set HGPLAIN=1 & hg branch
<<< [5] <exec> 145,771 us
>>> [6] <exec> $ set HGPLAIN=1 & hg log --branch "default" -r "draft()" --style default
<<< [6] <exec> 165,894 us
>>> [7] <exec> $ set HGPLAIN=1 & hg parents --style default --rev "."
<<< [7] <exec> 155,354 us
>>> [8] <exec> $ set HGPLAIN=1 & hg log --template "{node}☺{desc}☻" --rev "('null'::. - 'null')" --branch "default" --
<<< [8] <exec> 162,662 us
>>> [9] <exec> $ set HGPLAIN=1 & hg log --template "{node}☺{rev}☺{author}☺{date|rfc822date}☺{branch}☺{tag}☺{parents}☺{desc}☻" --rev "('
null'::. - 'null')" --branch "default" --
<<< [9] <exec> 163,487 us
>>> [10] <exec> $ set HGPLAIN=1 & hg parents --template "{node}\n" --rev "da8fa79fece91cbbf5f45aa73b59db55b551ad43"
<<< [10] <exec> 149,823 us
>>> [11] <conduit> differential.query() <bytes = 308>
>>> [12] <http> https://phabricator.mydom.com/api/differential.query
<<< [12] <http> 121,021 us
<<< [11] <conduit> 123,778 us
You have a saved revision message in '.hg\arc\create-message'.
Message begins:

       add .arcconfig file

You can use this message, or discard it.

    Do you want to use this message? [Y/n] y

>>> [13] <conduit> differential.parsecommitmessage() <bytes = 183>
>>> [14] <http> https://phabricator.mydom.com/api/differential.parsecommitmessage
<<< [14] <http> 151,852 us
<<< [13] <conduit> 154,702 us
>>> [15] <event> diff.willBuildMessage <listeners = 0>
<<< [15] <event> 3,154 us
>>> [16] <exec> $ "C:\Program Files (x86)\Git\share\vim\vim74\vim.exe"  "C:\Users\Efkan\AppData\Local\Temp\edit.ezegmxb11vcw4400\new-co
mmit"
<<< [16] <exec> 4,127,212 us
>>> [17] <conduit> differential.parsecommitmessage() <bytes = 303>
>>> [18] <http> https://phabricator.mydom.com/api/differential.parsecommitmessage
<<< [18] <http> 125,074 us
<<< [17] <conduit> 128,008 us
>>> [19] <conduit> user.query() <bytes = 176>
>>> [20] <http> https://phabricator.mydom.com/api/user.query
<<< [20] <http> 127,798 us
<<< [19] <conduit> 130,883 us
>>> [21] <event> diff.didBuildMessage <listeners = 0>
<<< [21] <event> 1,930 us
Linting...
No lint engine configured for this project.
Running unit tests...
>>> [22] <exec> $ set HGPLAIN=1 & hg log -l 1 --template "{node}" -r "ancestor('null',.)" --
<<< [22] <exec> 140,395 us
>>> [23] <exec> $ set HGPLAIN=1 & hg diff --git -U32767 --rev "" -- ""
<<< [23] <exec> 130,645 us

[2016-01-15 13:53:20] EXCEPTION: (CommandException) Command failed with error #255!
COMMAND
set HGPLAIN=1 & hg diff --git -U32767 --rev "" -- ""

STDOUT
(empty)

STDERR
hg: parse error: empty query
 at [<phutil>\src\future\exec\ExecFuture.php:416]
arcanist(head=master, ref.master=05c12eb9d9cb), phutil(head=master, ref.master=0fa7efbf09d7)
  #0 ExecFuture::resolvex() called at [<arcanist>\src\repository\api\ArcanistRepositoryAPI.php:406]
  #1 ArcanistRepositoryAPI::execxLocal(string, string, string, string) called at [<arcanist>\src\repository\api\ArcanistMercurialAPI.php:438]
  #2 ArcanistMercurialAPI::getRawDiffText(string) called at [<arcanist>\src\repository\api\ArcanistMercurialAPI.php:449]
  #3 ArcanistMercurialAPI::getFullMercurialDiff() called at [<arcanist>\src\repository\api\ArcanistMercurialAPI.php:379]
  #4 ArcanistMercurialAPI::buildCommitRangeStatus() called at [<arcanist>\src\repository\api\ArcanistRepositoryAPI.php:230]
  #5 ArcanistRepositoryAPI::getCommitRangeStatus() called at [<arcanist>\src\repository\api\ArcanistRepositoryAPI.php:249]
  #6 ArcanistRepositoryAPI::getWorkingCopyStatus() called at [<arcanist>\src\workflow\ArcanistWorkflow.php:1446]
  #7 ArcanistWorkflow::selectPathsForWorkflow(array, string) called at [<arcanist>\src\workflow\ArcanistUnitWorkflow.php:145]
  #8 ArcanistUnitWorkflow::run() called at [<arcanist>\src\workflow\ArcanistDiffWorkflow.php:1331]
  #9 ArcanistDiffWorkflow::runUnit() called at [<arcanist>\src\workflow\ArcanistDiffWorkflow.php:1219]
  #10 ArcanistDiffWorkflow::runLintUnit() called at [<arcanist>\src\workflow\ArcanistDiffWorkflow.php:474]
  #11 ArcanistDiffWorkflow::run() called at [<arcanist>\scripts\arcanist.php:392]