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Git Bisect yields the following:

61a241f0dc07aef5a3a5c2bd037a197236bde2e6 is the first bad commit
commit 61a241f0dc07aef5a3a5c2bd037a197236bde2e6
Author: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Date:   Tue Oct 14 10:53:29 2014 +0200

    Rewrite setup keywords initialization

    * lisp/org-table.el (org-table-set-constants): Remove function.
    * lisp/org.el (org-set-regexps-and-options): Rewrite function.  Merge
      it with `org-set-regexps-and-options-for-tags'.
    (org-set-regexps-and-options-for-tags): Remove function
    (org--setup-collect-keywords, org--setup-process-tags): New functions.
    (org-mode): Remove `org-set-regexps-and-options-for-tags' call.
    (org-agenda-prepare-buffers): Use optimized setup for tags in all
    cases.  Improve docstring.
    (org-make-options-regexp): Make returned regexp more efficient.

:040000 040000 afaa4ae741d1427954081fcbc29ee4a0363e6636
4a2d2634d397a45d3c9528fb1919a6e1a1315430 M lisp


On Fri, Oct 31, 2014 at 5:51 PM, Mike McLean <mike.mclean@pobox.com> wrote:

> Hello
>
> I updated to git-head today; my most recent update was about 1 week prior.
> Today I get a startup error in Emacs (Back trace of debug-init below).
>
> Emacs Version: GNU Emacs 24.4.1 (x86_64-apple-darwin13.4.0, NS
> apple-appkit-1265.21) of 2014-10-21 on mac-mike-2013
>
> Org Version: Org-mode version 8.3beta (release_8.3beta-513-gaa1fd6.dirty @
> /Users/mlm/.emacs.d/el-get/org-mode/lisp/)
>
> Debugger entered--Lisp error: (error "Symbol nil may not be buffer-local")
>   make-local-variable(nil)
>   org-set-regexps-and-options()
>   org-mode()
>   set-auto-mode-0(org-mode nil)
>   set-auto-mode()
>   normal-mode(t)
>   after-find-file(nil t)
>   find-file-noselect-1(#<buffer break-tracking.org>
> "~/Documents/OrgMaster/org/break-tracking.org" nil nil
> "~/Documents/OrgMaster/org/break-tracking.org" (259606255 16777220))
>   find-file-noselect("/Users/mlm/Documents/OrgMaster/org/
> break-tracking.org")
>   #[(f) "\301\302 \"\210\303 !\207" [f message "Opening Org mode file: %s"
> find-file-noselect] 3]("/Users/mlm/Documents/OrgMaster/org/
> break-tracking.org")
>   mapc(#[(f) "\301\302 \"\210\303 !\207" [f message "Opening Org mode
> file: %s" find-file-noselect] 3]
> ("/Users/mlm/Documents/OrgMaster/financial-notes/Financial-Notes.org"
> "/Users/mlm/Documents/OrgMaster/Library-eReader-Device-Support/Library-eReader-Device-Recommendation.org"
> "/Users/mlm/Documents/OrgMaster/Life_Planning/Life_Plan.org"
> "/Users/mlm/Documents/OrgMaster/MaaS360/MaaS360-for-Mobile-Development.org"
> "/Users/mlm/Documents/OrgMaster/MaaS360/MaaS360.org"
> "/Users/mlm/Documents/OrgMaster/Macintosh-Vision-Goals-Strategy/Macintosh-Vision-Goals-Strategy.org"
> "/Users/mlm/Documents/OrgMaster/Mobile-Vision-Goals-Strategy/Mobile-Vision-Goals-Strategy.org"
> "/Users/mlm/Documents/OrgMaster/org/Agile_Results.org"
> "/Users/mlm/Documents/OrgMaster/org/BCBSFL/BCBSFL-Journal.org"
> "/Users/mlm/Documents/OrgMaster/org/BCBSFL/Bulletproof_Configuration_Security_Vulnerability_Remediation.org"
> "/Users/mlm/Documents/OrgMaster/org/BCBSFL/Caretaker_of_Sustainable_Macintosh_Ecosystem.org"
> "/Users/mlm/Documents/OrgMaster/org/BCBSFL/Florida-Blue-Administrative-Overhead.org"
> "/Users/mlm/Documents/OrgMaster/org/BCBSFL/Macintosh_Strategic_Planner_Extraordinaire.org"
> "/Users/mlm/Documents/OrgMaster/org/BCBSFL/Master_of_Mobile_Device_Strategy_and_Support.org"
> "/Users/mlm/Documents/OrgMaster/org/BCBSFL/Provider_of_Superior_Macintosh_Support.org"
> "/Users/mlm/Documents/OrgMaster/org/BCBSFL/Rocket_Propelled_Career.org"
> "/Users/mlm/Documents/OrgMaster/org/BCBSFL/SLT-ipad-tracking.org"
> "/Users/mlm/Documents/OrgMaster/org/break-tracking.org"
> "/Users/mlm/Documents/OrgMaster/org/Commute.org"
> "/Users/mlm/Documents/OrgMaster/org/Effective-and-Efficient.org"
> "/Users/mlm/Documents/OrgMaster/org/from-mobile.org"
> "/Users/mlm/Documents/OrgMaster/org/Health-Fitness-Vitality.org"
> "/Users/mlm/Documents/OrgMaster/org/Home-Technology.org"
> "/Users/mlm/Documents/OrgMaster/org/Journal.org"
> "/Users/mlm/Documents/OrgMaster/org/Julie.org"
> "/Users/mlm/Documents/OrgMaster/org/Learn-Everything.org"
> "/Users/mlm/Documents/OrgMaster/org/Montu.org"
> "/Users/mlm/Documents/OrgMaster/org/Outstanding-Marriage.org"
> "/Users/mlm/Documents/OrgMaster/org/PamperedChef.org"
> "/Users/mlm/Documents/OrgMaster/org/Personal-Administrative-Overhead.org"
> "/Users/mlm/Documents/OrgMaster/org/refile.org"
> "/Users/mlm/Documents/OrgMaster/org/Toastmasters.org"
> "/Users/mlm/Documents/OrgMaster/Periodic-Reporting/background.org"
> "/Users/mlm/Documents/OrgMaster/Periodic-Reporting/Periodic-Report.org"
> "/Users/mlm/Documents/OrgMaster/Twinleaf_HOA/Twinleaf-Administrative-Overhead.org"
> "/Users/mlm/Documents/OrgMaster/Twinleaf_HOA/Twinleaf-Journal.org"
> "/Users/mlm/Documents/OrgMaster/Twinleaf_HOA/Twinleaf-Operations.org"
> "~/.init/emacs/emacs-init.org" "~/.init/emacs/org-init.org"))
>   byte-code("\302\303\304\"\210\305 \306\307 \"\207" [org-feed-alist
> org-agenda-files add-to-list org-export-filter-final-output-functions
> mlm-latex-add-bibliography nil mapc #[(f) "\301\302 \"\210\303 !\207" [f
> message "Opening Org mode file: %s" find-file-noselect] 3]] 3)
>   load("/Users/mlm/.init/emacs/package-init/init-org-mode" noerror)
>   el-get-load-package-user-init-file(org-mode)
>   eval((el-get-load-package-user-init-file (quote org-mode)))
>   byte-code("\306 \307 \n\" \310 ! \311\312 \313\"! \312 \314\" 7\311\312
> \315\"! 8\311\316 !! 9\317 \320 :# ;\312 \321\" <\312 \322\" =\312 \323\"
> >\312 \324\" ?\312 \325\" @\326 ! A\327
> !\210\f\330=\204\272\f\331\235\204\211 9\332 B\211 C\203\203 C@ B\333 \334
> B#\210 CA\211 C\204n*\335 \336\"\210 D\203\222\337 !\210
> 7\340=\204\272\311 7!\332 E\211 C\203\271 C@ E\341 E!\210 CA\211
> C\204\246*\342 <\343 #\210\342 =\344 #\210 ;\2048
> \332 E\211 C\203 C@ E A EP F\345 F!\204\360\346\347 F\"\210\350\351
> F\"\210\341 F!\210) CA\211 C\204\327*\f\352=\2048 8\332 G\211 C\2037 C@
> G\353 G! H\350\354 H\"\210\355 H!\210) CA\211 C\204 * ;\203A \356\202B \342
> ;\203N \357\360 \"\202O \361 I\211 J >\362 #\210 I\363\364 DD!\210 J ?\365 #\210*\366\301!\203z
> \353 ! KB K. \332\207" [el-get-sources package package-status-alist
> source method loads el-get-package-status-recipes
> el-get-read-package-status-recipe el-get-package-method el-get-as-list
> plist-get :load :autoloads :features el-get-load-path
> el-get-plist-get-with-default :lazy :prepare :before :post-init :after
> :pkgname el-get-package-directory
> el-get-error-unless-required-emacs-version builtin (apt-get fink pacman)
> nil el-get-add-path-to-list load-path el-get-install-or-init-info init
> el-get-byte-compile t el-get-load-fast el-get-run-package-support "prepare"
> "before" file-exists-p error "el-get could not find file '%s'"
> el-get-verbose-message "el-get: load '%s'" elpa el-get-as-symbol "require
> '%s" require el-get-lazy-run-package-support apply-partially
> el-get-eval-after-load eval ...] 5)
>   el-get-do-init(org-mode)
>   el-get-init-and-install((projectile ace-jump-mode web-mode
> google-c-style yaml-mode js2-mode json-mode cmake-mode smartparens
> switch-window smex full-ack org-mode habitrpg flycheck popwin
> browse-kill-ring git-modes ido-vertical-mode list-utils
> color-theme-solarized-bbatsov graphviz-dot-mode ess zencoding-mode rinari
> growl-for-emacs applescript-mode yasnippet magit string-utils
> ido-ubiquitous unicode-fonts font-utils el-get))
>   el-get(sync (projectile ace-jump-mode web-mode google-c-style yaml-mode
> js2-mode json-mode cmake-mode smartparens switch-window smex full-ack
> org-mode habitrpg flycheck popwin browse-kill-ring git-modes
> ido-vertical-mode list-utils color-theme-solarized-bbatsov
> graphviz-dot-mode ess zencoding-mode rinari growl-for-emacs
> applescript-mode yasnippet magit string-utils ido-ubiquitous unicode-fonts
> font-utils el-get))
>   eval-buffer(#<buffer  *load*-86991> nil
> "/Users/mlm/.init/emacs/emacs-init.el" nil t)  ; Reading at buffer position
> 80667
>   load-with-code-conversion("/Users/mlm/.init/emacs/emacs-init.el"
> "/Users/mlm/.init/emacs/emacs-init.el" nil nil)
>   load("/Users/mlm/.init/emacs/emacs-init.el" nil nil t)
>   load-file("/Users/mlm/.init/emacs/emacs-init.el")
>   (if noninteractive (load-file (expand-file-name
> "emacs-init-non-interactive.el" dotfiles-dir)) (load-file (expand-file-name
> "emacs-init.el" dotfiles-dir)))
>   eval-buffer(#<buffer  *load*-113100> nil
> "/Users/mlm/.init/emacs/init.el" nil t)  ; Reading at buffer position 1740
>   load-with-code-conversion("/Users/mlm/.init/emacs/init.el"
> "/Users/mlm/.init/emacs/init.el" nil nil)
>   load("/Users/mlm/.init/emacs/init.el" nil nil t)
>   load-file("~/.init/emacs/init.el")
>   eval-buffer(#<buffer  *load*> nil "/Users/mlm/.emacs" nil t)  ; Reading
> at buffer position 113
>   load-with-code-conversion("/Users/mlm/.emacs" "/Users/mlm/.emacs" t t)
>   load("~/.emacs" t t)
>   #[0 " \205\262 \306=\203 \307 \310Q\202; \311=\204 \307
> \312Q\202;\313\307\314\315#\203*\316\202;\313\307\314\317#\203:\320\nB
> \321\202;\316\322 \323 \322\211#\210 \322=\203a\324\325\326\307
> \327Q!\"\323 \322\211#\210 \322=\203` \210 \203\243\330
> !\331\232\203\243\332 !\211\333P\334 !\203}\211\202\210\334 !\203\207
> \202\210\314\262 \203\241\335 \"\203\237\336\337 #\210\340\341!\210 \266
> \f?\205\260\314 \323\342\322\211#)\262 \207" [init-file-user system-type
> delayed-warnings-list user-init-file inhibit-default-init
> inhibit-startup-screen ms-dos "~" "/_emacs" windows-nt "/.emacs"
> directory-files nil "^\\.emacs\\(\\.elc?\\)?$" "~/.emacs"
> "^_emacs\\(\\.elc?\\)?$" (initialization "`_emacs' init file is deprecated,
> please use `.emacs'") "~/_emacs" t load expand-file-name "init"
> file-name-as-directory "/.emacs.d" file-name-extension "elc"
> file-name-sans-extension ".el" file-exists-p file-newer-than-file-p message
> "Warning: %s is newer than %s" sit-for 1 "default"] 7 "\n\n(fn)"]()
>   command-line()
>   normal-top-level()
>
>