(drracket:209134): Gtk-WARNING **: 20:34:50.366: Could not load a pixbuf from icon theme.
This may indicate that pixbuf loaders or the mime database could not be found.
ALSA lib pcm_dmix.c:1075:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:877:(find_matching_chmap) Found no matching channel map
ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library libasound_module_rate_lavrate.so (/gnu/store/adlkhsffrpcpv8mnan13d8y9r3dp1724-profile/lib/alsa-lib/libasound_module_rate_lavrate.so: cannot open shared object file: No such file or directory)
ALSA lib pcm_rate.c:1468:(snd_pcm_rate_open) Cannot find rate converter
ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library libasound_module_pcm_a52.so (/gnu/store/adlkhsffrpcpv8mnan13d8y9r3dp1724-profile/lib/alsa-lib/libasound_module_pcm_a52.so: cannot open shared object file: No such file or directory)
ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library libasound_module_pcm_a52.so (/gnu/store/adlkhsffrpcpv8mnan13d8y9r3dp1724-profile/lib/alsa-lib/libasound_module_pcm_a52.so: cannot open shared object file: No such file or directory)
ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library libasound_module_pcm_speex.so (/gnu/store/adlkhsffrpcpv8mnan13d8y9r3dp1724-profile/lib/alsa-lib/libasound_module_pcm_speex.so: cannot open shared object file: No such file or directory)
ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library libasound_module_pcm_speex.so (/gnu/store/adlkhsffrpcpv8mnan13d8y9r3dp1724-profile/lib/alsa-lib/libasound_module_pcm_speex.so: cannot open shared object file: No such file or directory)
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_dmix.c:1075:(snd_pcm_dmix_open) unable to open slave
invalid memory reference.  Some debugging context lost
  context...:
   .../private/arrow-higher-order.rkt:379:33: body of top-level
   /gnu/store/hlfzywcy3j1pyr5n8vxqc3kkdabk4gpx-racket-8.10/lib/racket/pkgs/gui-lib/mred/private/mrcanvas.rkt:128:4: with-gl-context method in canvas%
   /gnu/store/bn137jkr5cwkdrrdi81nlmlfvnczw0wr-racket-with-video-8.10+video0.2.3-1.3c69669/lib/racket/pkgs/video/video/private/video-canvas.rkt:58:2
   /gnu/store/3ggww9vrsw5hz1608rax4ar853z3ka62-racket-vm-cs-8.10/opt/racket-vm/collects/racket/private/class-internal.rkt:3655:0: continue-make-object
   /gnu/store/3ggww9vrsw5hz1608rax4ar853z3ka62-racket-vm-cs-8.10/opt/racket-vm/collects/racket/private/class-internal.rkt:3629:0: do-make-object/real-class
   /gnu/store/bn137jkr5cwkdrrdi81nlmlfvnczw0wr-racket-with-video-8.10+video0.2.3-1.3c69669/lib/racket/pkgs/video/video/player.rkt:207:2
   /gnu/store/3ggww9vrsw5hz1608rax4ar853z3ka62-racket-vm-cs-8.10/opt/racket-vm/collects/racket/private/class-internal.rkt:3655:0: continue-make-object
   /gnu/store/3ggww9vrsw5hz1608rax4ar853z3ka62-racket-vm-cs-8.10/opt/racket-vm/collects/racket/private/class-internal.rkt:3629:0: do-make-object/real-class
   /gnu/store/bn137jkr5cwkdrrdi81nlmlfvnczw0wr-racket-with-video-8.10+video0.2.3-1.3c69669/lib/racket/pkgs/video/video/player.rkt:458:0: preview
   /gnu/store/3ggww9vrsw5hz1608rax4ar853z3ka62-racket-vm-cs-8.10/opt/racket-vm/collects/racket/contract/private/arrow-val-first.rkt:555:3
   /gnu/store/3ggww9vrsw5hz1608rax4ar853z3ka62-racket-vm-cs-8.10/opt/racket-vm/collects/racket/private/more-scheme.rkt:148:2: call-with-break-parameterization
   /gnu/store/3ggww9vrsw5hz1608rax4ar853z3ka62-racket-vm-cs-8.10/opt/racket-vm/collects/ffi/unsafe/atomic.rkt:73:13
   /gnu/store/hlfzywcy3j1pyr5n8vxqc3kkdabk4gpx-racket-8.10/lib/racket/pkgs/gui-lib/mred/private/wx/gtk/window.rkt:823:4: dispatch-on-event method in window%
   /gnu/store/hlfzywcy3j1pyr5n8vxqc3kkdabk4gpx-racket-8.10/lib/racket/pkgs/gui-lib/mred/private/wx/common/queue.rkt:436:6
   /gnu/store/hlfzywcy3j1pyr5n8vxqc3kkdabk4gpx-racket-8.10/lib/racket/pkgs/gui-lib/mred/private/wx/common/queue.rkt:487:32
   /gnu/store/hlfzywcy3j1pyr5n8vxqc3kkdabk4gpx-racket-8.10/lib/racket/pkgs/gui-lib/mred/private/wx/common/queue.rkt:639:3