this derivation will be built:
  /nix/store/r6jv4wxb9bmb5q8sr8xpixhw9ypjzg9b-xow_dongle-firmware-2017-07.drv
this path will be fetched (189.2 KiB download, 195.3 KiB unpacked):
  /nix/store/4p9p41lxq342cf8nyxs0wmmg5zbgpayz-1cd6a87c-623f-4407-a52d-c31be49e925c_e19f60808bdcbfbd3c3df6be3e71ffc52e43261e.cab
building '/nix/store/r6jv4wxb9bmb5q8sr8xpixhw9ypjzg9b-xow_dongle-firmware-2017-07.drv'
xow_dongle-firmware-2017-07> unpacking sources
xow_dongle-firmware-2017-07> unpacking source archive /nix/store/4p9p41lxq342cf8nyxs0wmmg5zbgpayz-1cd6a87c-623f-4407-a52d-c31be49e925c_e19f60808bdcbfbd3c3df6be3e71ffc52e43261e.cab
xow_dongle-firmware-2017-07> /nix/store/4p9p41lxq342cf8nyxs0wmmg5zbgpayz-1cd6a87c-623f-4407-a52d-c31be49e925c_e19f60808bdcbfbd3c3df6be3e71ffc52e43261e.cab: WARNING; possible 16256 extra bytes at end of file.
xow_dongle-firmware-2017-07> Extracting cabinet: /nix/store/4p9p41lxq342cf8nyxs0wmmg5zbgpayz-1cd6a87c-623f-4407-a52d-c31be49e925c_e19f60808bdcbfbd3c3df6be3e71ffc52e43261e.cab
xow_dongle-firmware-2017-07>   extracting FW_ACC_00U.bin
xow_dongle-firmware-2017-07> 
xow_dongle-firmware-2017-07> All done, no errors.
xow_dongle-firmware-2017-07> source root is ./.
xow_dongle-firmware-2017-07> setting SOURCE_DATE_EPOCH to timestamp 1500041262 of file ././FW_ACC_00U.bin
xow_dongle-firmware-2017-07> patching sources
xow_dongle-firmware-2017-07> installing
xow_dongle-firmware-2017-07> post-installation fixup
xow_dongle-firmware-2017-07> shrinking RPATHs of ELF executables and libraries in /nix/store/rw36jylxdxbqa5cvszrpancycgbdxhd1-xow_dongle-firmware-2017-07
xow_dongle-firmware-2017-07> patching script interpreter paths in /nix/store/rw36jylxdxbqa5cvszrpancycgbdxhd1-xow_dongle-firmware-2017-07
xow_dongle-firmware-2017-07> checking for references to /build/ in /nix/store/rw36jylxdxbqa5cvszrpancycgbdxhd1-xow_dongle-firmware-2017-07...

upload niks3: ok