Arc upgrade traces

*** This command executed from D:\Arcanist\libphutil (installation location of https://github.com/phacility/libphutil.git ) ***
$ arc upgrade --trace
libphutil loaded from 'D:\Arcanist\libphutil\src'.
arcanist loaded from 'D:\Arcanist\arcanist\src'.
Config: Reading user configuration file "C:\Users\<censored>\AppData\Roaming/.arcrc"...
Config: Reading system configuration file "C:\ProgramData\phabricator\arcanist\config"...
Working Copy: Reading .arcconfig from "D:\Arcanist\libphutil/.arcconfig".
Working Copy: Path "d:\Arcanist\libphutil" is part of `git` working copy "D:\Arcanist\libphutil".
Working Copy: Project root is at "D:\Arcanist\libphutil".
Config: Did not find local configuration at "D:\Arcanist\libphutil\.git\arc/config".
Upgrading libphutil...
Working Copy: Reading .arcconfig from "D:\Arcanist\libphutil/.arcconfig".
Working Copy: Path "D:\Arcanist\libphutil" is part of `git` working copy "D:\Arcanist\libphutil".
Working Copy: Project root is at "D:\Arcanist\libphutil".
Config: Did not find local configuration at "D:\Arcanist\libphutil\.git\arc/config".
>>> [0] <exec> $ git rev-parse --git-dir
<<< [0] <exec> 25,002 us
>>> [1] <exec> $ git diff --no-ext-diff --no-textconv --raw "HEAD" --
>>> [2] <exec> $ git ls-files --others --exclude-standard
<<< [2] <exec> 543,054 us
<<< [1] <exec> 548,055 us
>>> [3] <exec> $ git diff-files --name-only
<<< [3] <exec> 54,005 us
>>> [4] <exec> $ git symbolic-ref --quiet HEAD
<<< [4] <exec> 18,001 us
>>> [5] <exec> $ git pull --rebase
remote: Counting objects: 21, done.
remote: Compressing objects: 100% (6/6), done.
remote: Total 21 (delta 7), reused 7 (delta 7), pack-reused 8
Unpacking objects: 100% (21/21), done.
From https://github.com/phacility/libphutil
   880c0fb..c72eb74  master     -> origin/master
   d82ea11..0c7b526  stable     -> origin/stable
First, rewinding head to replay your work on top of it...
Fast-forwarded master to c72eb747e706fddf92653615e66adb86ca0961fc.
<<< [5] <exec> 2,653,264 us
Upgrading arcanist...
Working Copy: No candidate locations for .arcconfig from this working directory.
Working Copy: Path "D:\Arcanist\arcanist" is not in any working copy.

[2015-09-22 20:02:24] EXCEPTION: (Exception) The current working directory is not part of a working copy for a supported version control system (Git, Subversion or Mercurial). at [<arcanist>\src\repository\api\ArcanistRepositoryAPI.php:82]
arcanist(head=master, ref.master=28b89785fe5f), phutil(head=master, ref.master=c72eb747e706)
  #0 ArcanistRepositoryAPI::newAPIFromConfigurationManager(ArcanistConfigurationManager) called at [<arcanist>\src\workflow\ArcanistUpgradeWorkflow.php:42]
  #1 ArcanistUpgradeWorkflow::run() called at [<arcanist>\scripts\arcanist.php:382]
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*** This command executed from D:\Arcanist\arcanist (installation location of https://github.com/phacility/arcanist.git ) ***
arc upgrade --trace
libphutil loaded from 'D:\Arcanist\libphutil\src'.
arcanist loaded from 'D:\Arcanist\arcanist\src'.
Config: Reading user configuration file "C:\Users\<censored>\AppData\Roaming/.arcrc"...
Config: Reading system configuration file "C:\ProgramData\phabricator\arcanist\config"...
Working Copy: Reading .arcconfig from "D:\Arcanist\arcanist/.arcconfig".
Working Copy: Path "d:\Arcanist\arcanist" is part of `git` working copy "D:\Arcanist\arcanist".
Working Copy: Project root is at "D:\Arcanist\arcanist".
Config: Did not find local configuration at "D:\Arcanist\arcanist\.git\arc/config".
Loading phutil library from 'D:\Arcanist\arcanist\src'...
Upgrading libphutil...
Working Copy: No candidate locations for .arcconfig from this working directory.
Working Copy: Path "D:\Arcanist\libphutil" is not in any working copy.

[2015-09-22 20:18:54] EXCEPTION: (Exception) The current working directory is not part of a working copy for a supported version control system (Git, Subversion or Mercurial). at [<arcanist>\src\repository\api\ArcanistRepositoryAPI.php:82]
arcanist(head=master, ref.master=28b89785fe5f), phutil(head=master, ref.master=c72eb747e706)
  #0 ArcanistRepositoryAPI::newAPIFromConfigurationManager(ArcanistConfigurationManager) called at [<arcanist>\src\workflow\ArcanistUpgradeWorkflow.php:42]
  #1 ArcanistUpgradeWorkflow::run() called at [<arcanist>\scripts\arcanist.php:382]

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*** This command executed from D:\someproject\dev (project development repo) ***
$ arc upgrade --trace
libphutil loaded from 'D:\Arcanist\libphutil\src'.
arcanist loaded from 'D:\Arcanist\arcanist\src'.
Config: Reading user configuration file "C:\Users\<censored>\AppData\Roaming/.arcrc"...
Config: Reading system configuration file "C:\ProgramData\phabricator\arcanist\config"...
Working Copy: Reading .arcconfig from "D:\someproject\dev/.arcconfig".
Working Copy: Path "d:\someproject\dev" is part of `git` working copy "D:\someproject\dev".
Working Copy: Project root is at "D:\someproject\dev".
Config: Did not find local configuration at "D:\someproject\dev\.git\arc/config".
Upgrading libphutil...
Working Copy: No candidate locations for .arcconfig from this working directory.
Working Copy: Path "D:\Arcanist\libphutil" is not in any working copy.

[2015-09-22 20:19:13] EXCEPTION: (Exception) The current working directory is not part of a working copy for a supported version control system (Git, Subversion or Mercurial). at [<arcanist>\src\repository\api\ArcanistRepositoryAPI.php:82]
arcanist(head=master, ref.master=28b89785fe5f), phutil(head=master, ref.master=c72eb747e706)
  #0 ArcanistRepositoryAPI::newAPIFromConfigurationManager(ArcanistConfigurationManager) called at [<arcanist>\src\workflow\ArcanistUpgradeWorkflow.php:42]
  #1 ArcanistUpgradeWorkflow::run() called at [<arcanist>\scripts\arcanist.php:382]