Re: [PATCH] profiles: Add gtk-icon-themes hook.

[Mark H Weaver]

I'm no longer able to build my user profile, apparently due to a problem
in the gtk-icon-themes hook.  Using guix from commit 6a669bda51acb,
built after 'make clean', here's what I get with "guix package -u":

--8<---------------cut here---------------start------------->8---
warning: collision encountered: 
/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/icon-theme.cache
 
/gnu/store/bnc2g372kzjwral03ppvs1jxk6qxawag-transmission-2.84/share/icons/hicolor/icon-theme.cache
 
/gnu/store/9632alpzmgd7kplm70gmz4ir4wwjlrqb-evince-3.6.1/share/icons/hicolor/icon-theme.cache
 
/gnu/store/hd4vv8bi5c068avg12fsd80ivhdlddll-dconf-0.22.0/share/icons/hicolor/icon-theme.cache
 
/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/icon-theme.cache
 
/gnu/store/frzyzz6yax9ijqkmsvi2s4y9q8icvp0x-inkscape-0.91/share/icons/hicolor/icon-theme.cache
 
warning: arbitrarily choosing 
/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/icon-theme.cache
`/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/icon-theme.cache'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/icon-theme.cache'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/128x128/apps/vlc.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/128x128/apps/vlc.png'
`/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/128x128/apps/emacs.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/128x128/apps/emacs.png'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/128x128/apps/vlc-xmas.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/128x128/apps/vlc-xmas.png'
`/gnu/store/hd4vv8bi5c068avg12fsd80ivhdlddll-dconf-0.22.0/share/icons/hicolor/64x64'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/64x64'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/22x22/apps/gtk3-widget-factory.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/gtk3-widget-factory.png'
`/gnu/store/bnc2g372kzjwral03ppvs1jxk6qxawag-transmission-2.84/share/icons/hicolor/22x22/apps/transmission.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/transmission.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/22x22/apps/gtk3-demo.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/gtk3-demo.png'
`/gnu/store/frzyzz6yax9ijqkmsvi2s4y9q8icvp0x-inkscape-0.91/share/icons/hicolor/22x22/apps/inkscape.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/inkscape.png'
`/gnu/store/a3ny0d9m9krrs0k3l7rbl40m7aqxm627-gimp-2.8.14/share/icons/hicolor/22x22/apps/gimp.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/gimp.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/22x22/apps/gtk3-demo-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/gtk3-demo-symbolic.symbolic.png'
`/gnu/store/9632alpzmgd7kplm70gmz4ir4wwjlrqb-evince-3.6.1/share/icons/hicolor/22x22/apps/evince.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/evince.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/22x22/apps/gtk3-widget-factory-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/gtk3-widget-factory-symbolic.symbolic.png'
`/gnu/store/vb2cwz2br522y9kl6q046b2njrmpipc4-audacity-2.1.0/share/icons/hicolor/22x22/apps/audacity.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/audacity.png'
`/gnu/store/hd4vv8bi5c068avg12fsd80ivhdlddll-dconf-0.22.0/share/icons/hicolor/22x22/apps/dconf-editor.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/22x22/apps/dconf-editor.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/48x48/apps/gtk3-widget-factory.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/gtk3-widget-factory.png'
`/gnu/store/bnc2g372kzjwral03ppvs1jxk6qxawag-transmission-2.84/share/icons/hicolor/48x48/apps/transmission.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/transmission.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/48x48/apps/gtk3-demo.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/gtk3-demo.png'
`/gnu/store/frzyzz6yax9ijqkmsvi2s4y9q8icvp0x-inkscape-0.91/share/icons/hicolor/48x48/apps/inkscape.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/inkscape.png'
`/gnu/store/a3ny0d9m9krrs0k3l7rbl40m7aqxm627-gimp-2.8.14/share/icons/hicolor/48x48/apps/gimp.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/gimp.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/48x48/apps/gtk3-demo-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/gtk3-demo-symbolic.symbolic.png'
`/gnu/store/9632alpzmgd7kplm70gmz4ir4wwjlrqb-evince-3.6.1/share/icons/hicolor/48x48/apps/evince.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/evince.png'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/48x48/apps/vlc.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/vlc.png'
`/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/48x48/apps/emacs.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/emacs.png'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/48x48/apps/vlc-xmas.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/vlc-xmas.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/48x48/apps/gtk3-widget-factory-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/gtk3-widget-factory-symbolic.symbolic.png'
`/gnu/store/vb2cwz2br522y9kl6q046b2njrmpipc4-audacity-2.1.0/share/icons/hicolor/48x48/apps/audacity.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/audacity.png'
`/gnu/store/hd4vv8bi5c068avg12fsd80ivhdlddll-dconf-0.22.0/share/icons/hicolor/48x48/apps/dconf-editor.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/48x48/apps/dconf-editor.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/32x32/apps/gtk3-widget-factory.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/gtk3-widget-factory.png'
`/gnu/store/bnc2g372kzjwral03ppvs1jxk6qxawag-transmission-2.84/share/icons/hicolor/32x32/apps/transmission.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/transmission.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/32x32/apps/gtk3-demo.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/gtk3-demo.png'
`/gnu/store/frzyzz6yax9ijqkmsvi2s4y9q8icvp0x-inkscape-0.91/share/icons/hicolor/32x32/apps/inkscape.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/inkscape.png'
`/gnu/store/a3ny0d9m9krrs0k3l7rbl40m7aqxm627-gimp-2.8.14/share/icons/hicolor/32x32/apps/gimp.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/gimp.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/32x32/apps/gtk3-demo-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/gtk3-demo-symbolic.symbolic.png'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/32x32/apps/vlc.xpm'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/vlc.xpm'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/32x32/apps/vlc.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/vlc.png'
`/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/32x32/apps/emacs.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/emacs.png'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/32x32/apps/vlc-xmas.xpm'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/vlc-xmas.xpm'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/32x32/apps/gtk3-widget-factory-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/gtk3-widget-factory-symbolic.symbolic.png'
`/gnu/store/vb2cwz2br522y9kl6q046b2njrmpipc4-audacity-2.1.0/share/icons/hicolor/32x32/apps/audacity.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/audacity.png'
`/gnu/store/hd4vv8bi5c068avg12fsd80ivhdlddll-dconf-0.22.0/share/icons/hicolor/32x32/apps/dconf-editor.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/32x32/apps/dconf-editor.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/24x24/apps/gtk3-widget-factory.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/gtk3-widget-factory.png'
`/gnu/store/bnc2g372kzjwral03ppvs1jxk6qxawag-transmission-2.84/share/icons/hicolor/24x24/apps/transmission.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/transmission.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/24x24/apps/gtk3-demo.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/gtk3-demo.png'
`/gnu/store/frzyzz6yax9ijqkmsvi2s4y9q8icvp0x-inkscape-0.91/share/icons/hicolor/24x24/apps/inkscape.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/inkscape.png'
`/gnu/store/a3ny0d9m9krrs0k3l7rbl40m7aqxm627-gimp-2.8.14/share/icons/hicolor/24x24/apps/gimp.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/gimp.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/24x24/apps/gtk3-demo-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/gtk3-demo-symbolic.symbolic.png'
`/gnu/store/9632alpzmgd7kplm70gmz4ir4wwjlrqb-evince-3.6.1/share/icons/hicolor/24x24/apps/evince.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/evince.png'
`/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/24x24/apps/emacs.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/emacs.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/24x24/apps/gtk3-widget-factory-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/gtk3-widget-factory-symbolic.symbolic.png'
`/gnu/store/vb2cwz2br522y9kl6q046b2njrmpipc4-audacity-2.1.0/share/icons/hicolor/24x24/apps/audacity.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/audacity.png'
`/gnu/store/hd4vv8bi5c068avg12fsd80ivhdlddll-dconf-0.22.0/share/icons/hicolor/24x24/apps/dconf-editor.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/24x24/apps/dconf-editor.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/16x16/apps/gtk3-widget-factory.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/gtk3-widget-factory.png'
`/gnu/store/bnc2g372kzjwral03ppvs1jxk6qxawag-transmission-2.84/share/icons/hicolor/16x16/apps/transmission.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/transmission.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/16x16/apps/gtk3-demo.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/gtk3-demo.png'
`/gnu/store/frzyzz6yax9ijqkmsvi2s4y9q8icvp0x-inkscape-0.91/share/icons/hicolor/16x16/apps/inkscape.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/inkscape.png'
`/gnu/store/a3ny0d9m9krrs0k3l7rbl40m7aqxm627-gimp-2.8.14/share/icons/hicolor/16x16/apps/gimp.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/gimp.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/16x16/apps/gtk3-demo-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/gtk3-demo-symbolic.symbolic.png'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/16x16/apps/vlc.xpm'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/vlc.xpm'
`/gnu/store/9632alpzmgd7kplm70gmz4ir4wwjlrqb-evince-3.6.1/share/icons/hicolor/16x16/apps/evince.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/evince.png'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/16x16/apps/vlc.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/vlc.png'
`/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/16x16/apps/emacs.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/emacs.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/16x16/apps/gtk3-widget-factory-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/gtk3-widget-factory-symbolic.symbolic.png'
`/gnu/store/vb2cwz2br522y9kl6q046b2njrmpipc4-audacity-2.1.0/share/icons/hicolor/16x16/apps/audacity.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/audacity.png'
`/gnu/store/hd4vv8bi5c068avg12fsd80ivhdlddll-dconf-0.22.0/share/icons/hicolor/16x16/apps/dconf-editor.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/16x16/apps/dconf-editor.png'
`/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/scalable/mimetypes'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/scalable/mimetypes'
`/gnu/store/bnc2g372kzjwral03ppvs1jxk6qxawag-transmission-2.84/share/icons/hicolor/scalable/apps/transmission.svg'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/scalable/apps/transmission.svg'
`/gnu/store/c1a7k1jk85iz6a0mzfg0y1mk2cwc41dg-emacs-24.5/share/icons/hicolor/scalable/apps/emacs.svg'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/scalable/apps/emacs.svg'
`/gnu/store/vb2cwz2br522y9kl6q046b2njrmpipc4-audacity-2.1.0/share/icons/hicolor/scalable/apps/audacity.svg'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/scalable/apps/audacity.svg'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/256x256/apps/gtk3-widget-factory.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/gtk3-widget-factory.png'
`/gnu/store/bnc2g372kzjwral03ppvs1jxk6qxawag-transmission-2.84/share/icons/hicolor/256x256/apps/transmission.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/transmission.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/256x256/apps/gtk3-demo.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/gtk3-demo.png'
`/gnu/store/frzyzz6yax9ijqkmsvi2s4y9q8icvp0x-inkscape-0.91/share/icons/hicolor/256x256/apps/inkscape.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/inkscape.png'
`/gnu/store/a3ny0d9m9krrs0k3l7rbl40m7aqxm627-gimp-2.8.14/share/icons/hicolor/256x256/apps/gimp.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/gimp.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/256x256/apps/gtk3-demo-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/gtk3-demo-symbolic.symbolic.png'
`/gnu/store/9632alpzmgd7kplm70gmz4ir4wwjlrqb-evince-3.6.1/share/icons/hicolor/256x256/apps/evince.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/evince.png'
`/gnu/store/pwagwsp4rkkb9z2m8lz3y4frva1c06r8-vlc-2.2.0/share/icons/hicolor/256x256/apps/vlc.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/vlc.png'
`/gnu/store/98i5q9xbzyjmlgbz7zii9pnl5ysqisrq-gtk+-3.16.3/share/icons/hicolor/256x256/apps/gtk3-widget-factory-symbolic.symbolic.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/gtk3-widget-factory-symbolic.symbolic.png'
`/gnu/store/hd4vv8bi5c068avg12fsd80ivhdlddll-dconf-0.22.0/share/icons/hicolor/256x256/apps/dconf-editor.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/hicolor/256x256/apps/dconf-editor.png'
`/gnu/store/hd4vv8bi5c068avg12fsd80ivhdlddll-dconf-0.22.0/share/icons/HighContrast'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/HighContrast'
`/gnu/store/084b2y8cnm0xwqkcbrq9h56cpiw1wl7g-abiword-2.8.6/share/icons/abiword_48.png'
 ~> 
`/gnu/store/jzqx85n6wnxs8h43vlqp0dfa0p551hsr-gtk-icon-themes/share/icons/abiword_48.png'
gtk-update-icon-cache: Cache file created successfully.
Backtrace:
In ice-9/boot-9.scm:
 157: 11 [catch #t #<catch-closure 8ca580> ...]
In unknown file:
   ?: 10 [apply-smob/1 #<catch-closure 8ca580>]
In ice-9/boot-9.scm:
  63: 9 [call-with-prompt prompt0 ...]
In ice-9/eval.scm:
 432: 8 [eval # #]
In ice-9/boot-9.scm:
2401: 7 [save-module-excursion #<procedure 8e7800 at ice-9/boot-9.scm:4045:3 
()>]
4050: 6 [#<procedure 8e7800 at ice-9/boot-9.scm:4045:3 ()>]
1724: 5 [%start-stack load-stack #<procedure 8fa600 at ice-9/boot-9.scm:4041:10 
()>]
1729: 4 [#<procedure 8fd9c0 ()>]
In unknown file:
   ?: 3 [primitive-load 
"/gnu/store/lzw4b84kd5fm8j4cgl3jlb5k38v93ql4-gtk-icon-themes-builder"]
In ice-9/boot-9.scm:
 775: 2 [for-each #<procedure 1105300 at ice-9/eval.scm:416:20 (a)> #]
In ice-9/eval.scm:
 432: 1 [eval # #]
In unknown file:
   ?: 0 [scm-error wrong-type-arg "for-each" "Not a list: ~S" (#f) #f]

ERROR: In procedure scm-error:
ERROR: In procedure for-each: Not a list: #f
builder for `/gnu/store/1bdkfkr9g76ibvhxisr5cw5xs9mqq5qg-gtk-icon-themes.drv' 
failed with exit code 1
cannot build derivation 
`/gnu/store/d8mysjhb66kmbwfdvicv5gzvhrr49xxl-profile.drv': 1 dependencies 
couldn't be built
guix package: error: build failed: build of 
`/gnu/store/d8mysjhb66kmbwfdvicv5gzvhrr49xxl-profile.drv' failed
--8<---------------cut here---------------end--------------->8---

I've also attached a copy of ~/.guix-profile/manifest before running
this update command.

Any idea what's going wrong here?

      Mark

manifest.gz
Description: Guix manifest before failed "guix package -u" attempt