I am using Arch Linux with the 4.12.8-1 Linux kernel.
I installed Gnome-boxes using pacman (Arch Linux's binary package manager) and it worked nicely in the beginning, but after a few days it stopped working. Everytime I launch Gnome-boxes, the main window opens, shows the loading animation for a few seconds and then closes. When I ran it using a terminal it displayed the following message:
(gnome-boxes:20899): Boxes-CRITICAL **: media-manager.vala:190: Error connecting to Tracker: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Tracker1 was not provided by any .service files

(gnome-boxes:20899): Libvirt.GObject-CRITICAL **: gvir_storage_vol_get_info: assertion 'GVIR_IS_STORAGE_VOL(vol)' failed
[1]    20899 segmentation fault (core dumped)  gnome-boxes

I then tried to compile it from source, and got an error message upon launching it once again:
(gnome-boxes:20541): Boxes-CRITICAL **: media-manager.vala:190: Error connecting to Tracker: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Tracker1 was not provided by any .service files

(gnome-boxes:20541): Libvirt.GObject-CRITICAL **: gvir_storage_vol_get_info: assertion 'GVIR_IS_STORAGE_VOL(vol)' failed
[1]    20541 segmentation fault (core dumped)  ./gnome-boxes

Running ./gnome-boxes --check results in the following message:
(gnome-boxes:20989): Boxes-WARNING **: util-app.vala:250: Failed to execute child process ?restorecon? (No such file or directory)
• The CPU is capable of virtualization: yes
• The KVM module is loaded: yes
• Libvirt KVM guest available: yes
• Boxes storage pool available: yes
• The SELinux context is default: no

Report bugs to <https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-boxes>.
Boxes home page: <https://wiki.gnome.org/Apps/Boxes>.