Latest 18.03 has this:
root@nixos:/mnt/etc/nixos]# NIXOS_CONFIG="/mnt/etc/nixos/intel-nuc7i7bnh/configuration.nix" nixos-install
building the configuration in /mnt/etc/nixos/intel-nuc7i7bnh/configuration.nix...
warning: dumping very large path (> 256 MiB); this may run out of memory
builder for '/nix/store/s0625g6yn78kh3avjj16qgfws0akfjgf-852bb503-de7b-4810-a7dd-cbab62742f09_7cf83a4c194116648d17707ae37d564f9c70bec2.cab.drv' failed with exit code 1; last 7 log lines:
trying http://download.windowsupdate.com/c/msdownload/update/driver/drvs/2017/04/852bb503-de7b-4810-a7dd-cbab62742f09_7cf83a4c194116648d17707ae37d564f9c70bec2.cab
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
99 476k 99 475k 0 0 652k 0 --:--:-- --:--:-- --:--:-- 651k
curl: (56) Recv failure: Connection reset by peer
error: cannot download 852bb503-de7b-4810-a7dd-cbab62742f09_7cf83a4c194116648d17707ae37d564f9c70bec2.cab from any mirror
cannot build derivation '/nix/store/pfn6w4x414lwkjc1lrw4xj6wbskwy7wy-broadcom-bt-firmware-12.0.1.1012.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/k8havn4021avanls09glbpk0sq3jcqxl-firmware.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/wm89p7m1p2j6802y9d0ny2ykzcq9h7hx-nixos-system-matrix-sidekick-18.03.132217.c56ebaba1b0.drv': 1 dependencies couldn't be built
[0 built (1 failed), 1121 copied (5916.6 MiB), 887.2 MiB DL]
error: build of '/nix/store/wm89p7m1p2j6802y9d0ny2ykzcq9h7hx-nixos-system-matrix-sidekick-18.03.132217.c56ebaba1b0.drv' failed
The http://download.windowsupdate.com/c/msdownload/update/driver/drvs/2017/04/852bb503-de7b-4810-a7dd-cbab62742f09_7cf83a4c194116648d17707ae37d564f9c70bec2.cab appears broken.
I'm getting it downloaded correctly:
$ nix-prefetch-url http://download.windowsupdate.com/c/msdownload/update/driver/drvs/2017/04/852bb503-de7b-4810-a7dd-cbab62742f09_7cf83a4c194116648d17707ae37d564f9c70bec2.cab
path is '/nix/store/wplsilwf442sr0d5pxjwivi1ydscwkcw-852bb503-de7b-4810-a7dd-cbab62742f09_7cf83a4c194116648d17707ae37d564f9c70bec2.cab'
1b1qjwxjk4y91l3iz157kms8601n0mmiik32cs6w9b1q4sl4pxx9
curl: (56) Recv failure: Connection reset by peer
This seems to be a transient error. Did you try multiple times?
Transient error... should probably be resolved with some sort of upstream caching system (IPFS or otherwise).
Most helpful comment
I'm getting it downloaded correctly: