Partial build log
this derivation will be built:
/nix/store/7dwj9954j6szppays8yxcsfpxbjsq76p-libva-vdpau-driver-0.7.4-include-linux-videodev2.h.patch.drv
building '/nix/store/bg5hv5srl7vyqb2bfqa65lh1b88zp767-libva-vdpau-driver-0.7.4-include-linux-videodev2.h.patch.drv'...
libva-vdpau-driver> trying https://gitweb.gentoo.org/repo/gentoo.git/plain/x11-libs/libva-vdpau-driver/files/libva-vdpau-driver-0.7.4-include-linux-videodev2.h.patch
libva-vdpau-driver> % Total % Received % Xferd Average Speed Time Time Time Current
libva-vdpau-driver> Dload Upload Total Spent Left Speed
libva-vdpau-driver> 0 8600 0 0 0 0 0 0 --:--:-- 0:00:05 --:--:-- 0
libva-vdpau-driver> curl: (22) The requested URL returned error: 404
libva-vdpau-driver> error checking the existence of file:///dev/null/sha256/1m4is6lk580mppsx2mvdv1xifj6gvx724si4qynsm9qrdfdc9fby:
libva-vdpau-driver> curl: (37) Couldn't open file /dev/null/sha256/1m4is6lk580mppsx2mvdv1xifj6gvx724si4qynsm9qrdfdc9fby
libva-vdpau-driver> error: cannot download libva-vdpau-driver-0.7.4-include-linux-videodev2.h.patch from any mirror
error: builder for '/nix/store/bg5hv5srl7vyqb2bfqa65lh1b88zp767-libva-vdpau-driver-0.7.4-include-linux-videodev2.h.patch.drv' failed with exit code 1
error: