GNOME Shell always crashes with SIGBUS

It looks like it is broken by commit 729dad66. If I check out to its previous commit, GNOME Shell can be successfully started. The following messages are shown when GNOME Shell crashes. The GJS commit I used to test in this issue is e3511750:

(gnome-shell:26710): Gjs-WARNING **: 18:58:18.712: JS ERROR: Error: No property child on Gjs_ShowAppsIcon
_init@resource:///org/gnome/shell/ui/dash.js:49:9
wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
_parent@resource:///org/gnome/gjs/modules/_legacy.js:39:12
_init@resource:///org/gnome/shell/ui/dash.js:239:9
wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
_init@resource:///org/gnome/shell/ui/dash.js:406:30
wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
_Base.prototype._construct@resource:///org/gnome/gjs/modules/_legacy.js:18:5
Class.prototype._construct/newClass@resource:///org/gnome/gjs/modules/_legacy.js:114:32
_init@resource:///org/gnome/shell/ui/overviewControls.js:403:21
wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
_Base.prototype._construct@resource:///org/gnome/gjs/modules/_legacy.js:18:5
Class.prototype._construct/newClass@resource:///org/gnome/gjs/modules/_legacy.js:114:32
init@resource:///org/gnome/shell/ui/overview.js:247:26
wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
_initializeUI@resource:///org/gnome/shell/ui/main.js:191:5
start@resource:///org/gnome/shell/ui/main.js:133:5
@<main>:1:31

** Message: 18:58:18.712: Execution of main.js threw exception: Script <main> threw an exception