Leaving directory ‘/home/case/.emacs.d/elpa/darkroom-0.1’

Compiling file /home/case/.emacs.d/elpa/darkroom-0.1/darkroom.el at Fri Oct 19 00:46:05 2018
Entering directory ‘/home/case/.emacs.d/elpa/darkroom-0.1/’

In darkroom-guess-margins:
darkroom.el:155:16:Warning: reference to free variable ‘buffer-face-mode’
darkroom.el:156:36:Warning: reference to free variable ‘buffer-face-mode-face’

In darkroom-mode:
darkroom.el:334:9:Warning: reference to free variable
    ‘darkroom-tentative-mode’